PRE -FEASIBILITY REPORT - environmentclearance.nic.in€¦ · pre -feasibility report...

Pyujjfjdlfkgjndgh PRE-FEASIBILITY REPORT

OF

PROPOSED 2 MLD COMMON EFFLUENT TREATMENT PLANT (CETP)

AT

PATLIPUTRA INDUSTRIAL AREA, DISTRICT PATNA, BIHAR

BY

M/S. BIHAR INDUSTRIAL AREA DEVELOPMENT AUTHORITY (BIADA)

GOVERNMENT OF BIHAR

EIA Consultant

SMS Envocare Ltd

301, Pentagon P3, Magarpatta City, Hadapsar, Pune, 411028 MS Phone No.: 020-66801111, Fax No. 020-66801100

Web: www.smsenvocare.co.in

Draft Detailed Project Report for Establishment of CETP in PATLIPUTRA Industrial Area, PATNA

SMS Envocare Ltd. 1

INDEX

SR. NO. PARTICULAR PAGE NO.

CHAPTER 1- INTRODUCTION

1.1 BACKGROUND OF THE PROJECT 1 1.2 SCOPE OF WORK 2 1.3 METHODOLOGY ADOPTED 3 1.4 COLLECTION/ CONVEYANCE OF WASTEWATER 5 1.5 ASSUMPTIONS MADE DURING PREPARATION OF DETAILED PROJECT

REPORT 5

1.6 JUSTIFICATION FOR REQUIREMENT OF CETP 6 CHAPTER 2- PROFILE OF PATNA

2.1 CITY PROFILE OF PATNA 7 2.2 LOCATION & GEOGRAPHICAL AREA 7 2.3 TOPOGRAPHY 8 2.4 CLIMATE & RAINFALL 8 2.5 DEMOGRAPHY 11 2.6 ECONOMY 11 2.7 TRANSPORT 11 2.8 HISTORY & CULTURE 12

CHAPTER 3- PROFILE OF PATLIPUTRA INDUCTRIAL AREA

3.1 PATLIPUTRA INDUSTRIAL AREA 16 3.2 INVENTORY OF INDUSTRIES 17 3.3 INDUSTRIAL SECTORS IN PATNA 21 3.4 PRESENT SCENARIO OF WASTEWATER GENERATION 24 3.5 FUTURE PROJECTIONS OF WASTEWATER QUANTITY 25 3.6 CATEGORIZATION OF INDUSTRIES (RED, ORANGE AND GREEN) 26 3.7 MAJOR INDUSTRIES LOCATED IN PATLIPUTRA, INDUSTRIAL AREA 27

CHAPTER 4- PRODUCTION PROCESS

4.1 PRODUCTION PROCESS 30 CHAPTER 5- QUANTIFICATION & CHARACTERISTICS OF WASTE WATER/EFFLUENTS

5.1 ASSUMPTIONS IN CALCULATION OF WATER CONSUMPTION AND EFFLUENT GENERATION

44

5.2 WATER CONSUMPTION AND EFFLUENT GENERATION 44 5.3 DESIGN CAPACITY OF PROPOSED CETP 46 5.4 CHARACTERISTICS OF WASTE WATER 46 5.5 CHARACTERISTICS OF TREATED WASTE WATER 47

CHAPTER 6- CRITERIA FOR SELECTION OF WASTEWATER TREATMENT

TECHNOLOGIES/SCHEMES

6.1 ACTIVATED SLUDGE PROCESS 48 6.2 SEQUENTIAL BATCH REACTOR (SBR) 49 6.3 MOVING BED BIO-REACTOR (MBBR) 50 6.4 RECOMMENDED TECHNOLOGY 53

CHAPTER 7- PROPOSED SCHEMES

7.1 PROPOSED TREATMENT SCHEME 54 7.2 DETAILED TREATMENT SCHEME 56 7.3 SLUDGE HANDLING SYSTEM 61

CHAPTER 8- DESIGN SPECIFICATION OF TREATMENT UNIT

8.1 SPECIFICATIONS FOR CIVIL UNITS 62 8.2 SPECIFICATION FOR MECHANICAL EQUIPMENTS AND WORKS 67

Draft Detailed Project Report for Establishment of CETP in PATLIPUTRA Industrial Area, PATNA

SMS Envocare Ltd. 2

8.3 SPECIFICATION FOR ELECTRICAL & INSTRUMENTATION WORKS 74 8.3.1 Automatic Power Factor Control Panel 74 8.3.2 Electr ical Panel 75

8.4 INSTRUMENTATION 76 8.4.1 The Aerat ion System Shall be PLC Controlled for Automatic Operation

through SCADA 76

8.4.2 Online Real Time CETP Water Quality Monitor ing 78 8.5 ELECTRICAL LOAD 78

CHAPTER 9- ENVIRONMENTAL MANAGEMENT PLAN (EMP)

9.1 ENVIRONMENTAL MANAGEMENT PLAN (EMP) 80 9.2 ENVIRONMENTAL MANAGEMENT DURING OPERATION OF CETP 83

CHAPTER 10- CONCLUSION

10.1 CONCLUSION 87

LIST OF TABLES

TABLE. NO. PARTICULAR PAGE NO.

CHAPTER 2- PROFILE OF PATNA

2.1 Rainfall intensities (month wise) from Meteorological Depar tment 9 CHAPTER 3- PROFILE OF PATLIPUTRA INDUCTRIAL AREA

3.1 Summary of Distr ibution of Industr ies & Plot area 18 3.2 Categor ization of Industr ies 19 3.3 Distr ibution of industr ial clusters in PATLIPUTRA, PATNA Region 22

CHAPTER 5- QUANTIFICATION & CHARACTERISTICS OF WASTE WATER/EFFLUENTS

5.1 Distr ibution of industr ial clusters in PATLIPUTRA, PATNA Region 45 5.2 Average Character istics of Combined Untreated Effluent for Design 47

5.3 Character istics of Treated Water as per CPCB/ SPCB

CHAPTER 6- CRITERIA FOR SELECTION OF WASTEWATER TREATMENT

TECHNOLOGIES/SCHEMES

6.1 Comparative of Mer its and Demer its of ASP, SBR and MBBR technologies

52

CHAPTER 7- PROPOSED SCHEMES

7.1 Expected Character ist ics of Effluent after Physico-chemical treatment

56

7.2 Expected Character istics of tr eated Effluent after Biological Treatment

58

7.3 Expected Character istics of final treated effluent after Ter tiary treatment

59

CHAPTER 8- DESIGN SPECIFICATION OF TREATMENT UNIT

8.1 Details of CETP Units and BOQ of Civil work 63 8.2 Pipe Details 67 8.3 Mechanical Items Details 68 8.4 Electr ical Load Sheet 78

Draft Detailed Project Report for Establishment of CETP at Patliputra Industrial Area

SMS Envocare Limited Page 1 of Chapter 3

CHAPTER -1

INTRODUCTION

1.1 BACKGROUND OF THE PROJECT

The enhanced pace of developmental activit ies and rapid urbanizat ion have resulted in stress on natural resources and quality of life. In the present scenar io of increasing

urbanizat ion, vast amount of industr ial, vehicular as well as water pollution occurs due to discharge of effluents without conforming to the environmental norms and standards, the

concern for environmental quality has become an issue of worry. The trend of increasing pollut ion in var ious environmental media is evident from the deter iorating quality of water , air , soil etc.

Small Scale Industr ial units (SSIs) have a very impor tant role in industr ial development in

the country. Government actively promotes growth of SSI units to induce a balanced economic growth and distr ibute the benefits of industr ial development in an equitable

manner . SSI units generally find it difficult to establish and operate individual Effluent Treatment Plant (ETP) due to their limited plot size and scale of operat ions. However , SSI

units are generally located as clusters in industr ial areas/ estates; the concept of Common

Effluent Treatment Plant (CETP) for the entire effluent from the industr ial area has been developed to achieve sat isfactory treatment through their collective effor ts. The

monitor ing and enforcing a CETP as a single pollut ing source also becomes easier for regulatory agencies as compared to monitor ing a large number of SSI units individually.

The cont inuous discharge of par tially/ un-treated industr ial wastewater from the industr ies

leads to contaminat ion of sur face and ground water . Most of the industr ial estates in Bihar are located at the Bank of River “Ganga”. Ganga is no more pure for direct dr inking

purpose. Government of India as well as var ious states has taken init iatives to pur ify the r iver Ganges. Present ly Government has come up with the scheme of “Namami Ganga” to pur ify r iver Ganga upto 2020. In line with this, State Pollut ion Control Board has taken

initiat ive under the direct ion of Nat ional Green Tr ibunal to establish Common Effluent Treatment Plant (CETP) in the Industr ial Estate to treat the wastewater to meet sur face

discharge norms. Subsequently, Bihar Industr ial Area Development Author ity (BIADA) has floated tender for gett ing Consultancy Services for the Preparat ion of Detailed Project Repor t (DPR) for Establishment of Common Effluent Treatment Plant (CETP). SMS

Envocare Limited (SMSEL) being pioneer in the field of Environmental Consultancy in India had par ticipated in the Tender and qualified technically and financially and eventually was

awarded the work for the same in the month of August 2015.



After receipt of the work order and execut ion of agreement for the conduct ion of study for the preparation of DPR for establishment of CETP in the five industr ial areas, viz- ( i)

Patliputra Industrial Area, ( ii) Hajipur Industr ial Area, ( ii i) Bela, Muzaffarpur Industr ial Area, ( iv) Barar i, Bhagalpur Industr ial Area and (v) Fatuha Industr ial Area; the team of

SMSEL conducted field studies in the month of August –September 2015 and prepared the Feasibi lity Repor t . Subsequent ly, a presentation has been made before the officials of BIADA under the chairmanship of Managing Director , BIADA. The feedback/ suggest ion

received on the feasibility repor ts has been incorporated in draft DPR.

This Draft Detailed Project Repor t is per taining to Pat liputra Industrial area.

1.2 SCOPE OF WORK

As per NIT/ Tender document/ contract agreement, the following scope of work has

been envisaged:

1. Ident ify the type of Industr ies with numbers and categor ies in each Industr ial Area. 2. Undertake detai led pr imary as well secondary surveys to quant i fy the d ischar ge

and determine the character ist ics of discharge in terms of influent and effluent

from each unit w ithin the Industr ial Area.

3. Determine the total cur rent discharge and the type and character istics of discharge

from a par ticular Industr ial Area and categor ize the industr ies into pollut ing and ser iously polluting industr ies.

4. Just ifying the Need for sett ing up of the CETP.

5. Suggest and ident ify the most suitable land in consultation with BIADA for setting

up of the CETP.

6. Topographical survey and geotechnical investigat ion of the identified land. 7. Based on the present and future discharge, capacity planning of the CETP and

adopt best pract ices in terms of technology while following all norms and specificat ions.

8. Detailed Engineer ing Design of the CETP, Detailed Plan Drawings showing the

Co- Ordinates , Engineering Drawings with Detailed Quantity and Cost Est imate (cost estimate shall be prepared as per latest schedule of rates of Govt. of Bihar) .

9. Technical and Financial sustainabili ty analysis and implementat ion of framework. 10. Obtain Approval/ clearances on behalf of BIADA from all concerned Author it ies

like, Bihar State Pollut ion Control Board, National Green Tr ibunal etc as may be

required for smooth implementation of the project.



1.3 METHODOLOGY ADOPTED

Following methodology has been adopted in the Preparation of Draft DPR:

Kick –off meeting: Immediately after receipt of the work order , kick off meet ing has been made in the Head office of BIADA at Patna. The methodology for the

conduction of study has been discussed with the Secretary, concerned Execut ive

Engineer & Asst Engineer of BIADA.

Getting Authorization Letter: Dur ing the meeting, i t has been felt that an Author izat ion letter need to be issued from the office of BIADA to meet with the Entrepreneurs of the Industr ial Area, Industry’s Associat ion, Bihar State Pollut ion

Control Board and other Government offices/ inst itutions in gett ing the available information. The head office of BIADA issued letter to all concerned officers of

Industr ial areas like Execut ive Director , Executive Engineer , Asst Engineer , Junior

Engineer , Area-In-Charge etc. The respective Area In-Charge fur ther issued Author izat ion letter to SMSEL for the easy access to the industr ies. They have

communicated at their end to all the industr ies to extend cooperat ion in gett ing valuable information by SMSEL. A copy of let ters are enclosed in Annexure-I

Collection of Available Secondary Data: The available data with the BIADA office

has been collected by the team of SMSEL like Layout Plan of the Industr ial Area, Updated list of the industr ies with plot size and type of product/ manufactur ing. The data of operational, closed, under construction, vacant plot also have been collected.

Preparation of Questionnaire for survey: A quest ionnaire has been prepared for

the collection of data per taining to Production Capacity, Product(s) , water consumption, wastewater generat ion, quality of wastewater , existence of ETP,

future expansion in the product ion capacity etc to arr ive at the design wastewater quant ity and character ist ics. A copy of quest ionnaire is placed at Annexure-II.

Conduction of field survey: Team of exper ts from SMSEL conducted field survey to collect information door-to-door from all the operat ional units in the industr ial area.

The schedule of visit to the industr ies has been communicated to the concerned

Executive Director as well as Area In-Charge. They were communicated and br iefed in advance to all the industr ies about the field survey work and data collect ion for CETP work. Dur ing the survey, the representatives of BIADA along with the team of

SMSEL visited to the industr ies.

Inventory of Industries: Inventory of industr ies/ inst itut ions with detai ls of address, plot size, types of product, daily production, man-power strength, quantity

of process water consumption, existence of ETP etc was studied through door to door survey of the exist ing plots.



Collection of Representative samples: The necessary wastewater samples have been collected to represent all possible industr ial sectors. The wastewater samples

have been analyzed in the field through test kits and also analyzed in the Environmental Laboratory of SMSEL/ NABL accredited laboratory.

Meeting with the officials of Bihar State Pollution Control Board (BSPCB): The

exper ts from SMSEL met the Member Secretary of BSPCB and Regional officers looking after the Industr ial Estate. The Regional Officers and their colleagues ident ified the major water pollut ing industr ies located in the industr ial areas who

are the major contr ibutors of wastewater generated from the industr ial area.

Literature Survey: The team of SMSEL has gone through the relevant li terature

available in the Books, Journals, Internet Web-sites, and Publication of CPCB etc. The

ear lier prepared repor ts by CPCB, NPC, MoEF, Wor ld Bank, UNIDO, and USEPA etc have been referred for gett ing specific wastewater generation from all possible type

of industr ial sectors located in the industrial area. The relevant wastewater character istics available from the reputed literature for the different industr ial

areas/ industr ial processes have been referred to arr ive at composite and combined

wastewater character istics.

Quantification and Characterization of wastewater: The design flow and character istics have been arr ived based on the estimated wastewater flow and

character istics from the individual operat ional industr ies dur ing the survey per iod

and projection for closed, under-construction and vacant plots. Specific water

consumption figures in var ious sectors of industr ies were taken as per CPCB guidelines, experience of the consultant. For domestic wastewater , CPHEEO Manual was followed. The weightage average value of BOD of combined effluent for CETP

design was calculated by mult iplying est imated daily flow (quant ity) and BOD value

of individual industry.

Estimation of Design flow & characteristics: The design flow and character istics have been arr ived based on total est imated industr ial and domestic wastewater generated from the operating industr ies and fur ther projection for closed, under

construct ion and vacant plots. The combined wastewater characterist ics have been

evolved based on summation of BOD load from all the operational units and

projected BOD load from closed, under construction and vacant plots.

Identification of proposed land for CETP: With the help of concerned Execut ive Director and Area In-charge, the proposed available site(s) of land for CETP have

been seen by the exper t of SMSEL. The same has been cr itically examined for the feasibili ty of setting up of CETP. It has been discussed with the senior officials of

BIADA before finalization of DPR.



Preparation of Feasibility Report: Based on the design flow and character ist ics, the var ious possible treatment schemes have been evolved and discussed. The sizes

of var ious treatment units were calculated based on design flow and characterist ics. The comparative analysis of specificat ion of Civi l, Electro-mechanical par ts,

Operation & Maintenance and Power requirement have been made with the latest

t reatment technologies and discussed in the repor t . Out of alternate treatment schemes suggested in Feasibili ty Repor t, one best suited treatment scheme has been

selected after discussing with the BIADA officials. After necessary changes or correct ion the Draft Detailed Project Repor t has been prepared for Submission.

Preparation of Draft DPR: - After receipt of comments on feasibi li ty repor t and

finalization of land for the proposed CETP the detai led Topographic & Geo-Investigation survey have been carr ied out for the proposed CETP site. Based on actual ground condit ion detai led costing of Civi l & Electro-Mechanical i tems have

been made based on rear ranged CETP components. Or layout.

1.4 COLLECTION/CONVEYANCE OF WASTEWATER

Present ly the wastewater is being discharged outside/ inside the premises. There is no existence of conveyance system. As per discussion with BIADA, the same is in process of implementat ion.

There is no storm water drainage system existing in the industr ial areas. Dur ing rainy season, the Storm water gets mixed with the trade & domest ic waste water of

the industr ies. Most of the time, i t leads to flooding in the industr ial area due to

absence of drains.

Dur ing the presentation of Feasibi li ty Repor t, it has been clear ly mentioned that there should be separate conveyance system for storm water , domestic and trade

effluent for the proposed site of CETP. It has been accepted by the BIADA officials

1.5 ASSUMPTIONS MADE DURING PREPARATION OF DETAILED PROJECT REPORT

Following assumptions have been followed for the estimat ion of wastewater flow and character istics to design suitable Treatment Scheme for sett ing up of CETP:

The door to door visit has been made in the operational units.

The estimation of flow has been made based on repor ted figures from the representative of industr ies dur ing the field survey, exper ience of SMSEL exper ts in

the same industr ial sectors and authent ic data on specific wastewater generat ion and pollut ion load from the literature/ repor ts and monitored/ est imated value

dur ing survey.

The value for closed and under-construct ion units have been made based on the Production Capacity/ Product(s) .



The est imated wastewater from the vacant plot has been made for the prominent industr ies available in the industr ial area.

The pre-treatment has been suggested to industr ies those who are generat ing excess quant ity of Oil/ grease, Total Suspended Solid (TSS), highly Acidic or Highly Alkaline in nature and Tannery wastewater .

There is no conveyance system present in the industr ial areas for carrying out the industr ial wastewater generated from individual units. Therefore, i t was assumed that based on the flow from the individual units, the BIADA will construct suitable

conveyance system with gravity flow ( to extent possible) which leads to proposed site of CETP.

The Storm water drain should be separately constructed by BIADA for the

conveyance of Rain water .

Present ly, there is no Hazardous Waste Treatment, Storage and Disposal Facility (TSDF) available in Bihar . After commissioning of CETP, the CETP sludge as

hazardous waste would be disposed in the TSDF facili ty as per Hazardous Waste (Management and Handling) Rules. The BIADA has to plan in setting up of TSDF.

The industry designated for “Zero Discharge Limit” has been considered to

discharge only domestic wastewater into the common drain leading to CETP.

The battery limit of Treated water disposal at the CETP point. The BIADA has to ident ify the disposal point for the discharge of treated wastewater from the CETP. It

could be discharged into nearby r iver , municipal drain or reuse in the agr iculture

field.

1.6 JUSTIFICATION FOR REQUIREMENT OF CETP

The industr ies and institutes generate waste water from the production process, toi lets

(domestic) and laborator ies etc. Such wastewater has pollutants concentrat ion levels much above the permissible limits prescr ibed by the State Pollut ion Control Boards. Few big

industr ies has installed Effluent Treatment Plants (ETP), however , most of the industr ies discharge their untreated effluent in nearby open land/ drain leading to r iver Ganga.

In view of direct ions from the Central and State Pollut ion Control Boards, BIADA has decided to install a Common Effluent Treatment Plant (CETP) for proper treatment of

untreated wastewater likely to be generated from industr ies. The proposed CETP will help in achieving end-of-pipe treatment of combined wastewater of all par ticipat ing industr ies at lower O&M cost and also facili tate better monitor ing by the State Pollut ion Control

Board.

*****



CHAPTER-2

PROFILE OF PATLIPUTRA, PATNA

Patliputra (now Patna) is located at the confluence of the Ganges and Sone Rivers in

nor theastern India. Patna distr ict is the most populous amongst all the distr icts of Bihar . Patna is the capital City of the State of Bihar . It is the largest town & headquar ters of Patna

distr ict . It is mainly an administrative & educational centre. Patna city is well connected by road, rail and air . NH 19, NH 83 and NH 98 passes through the municipal corporat ion limits.

2.1. LOCATION & GEOGRAPHICAL AREA

Patna is surrounded by the distr icts Saran, Vaishali, Samast ipur & Begusarai in the Nor th, Bhojpur distr ict in the West, distr icts of Jehanabad, Lakhisarai, & Nalanda in the South &

Begusarai distr ict in the East. It has geographical area of 3, 17,236 hectares.

Fig 2.1: Location Map



2.2. HISTORICAL IMPORTANCE

The ancient and modern capital of Bihar , Pat liputra was the seat of Mauryan rule.

Patliputra is the ancient name of Patna, the present day capital of Bihar . It has had, in fact,

many names throughout its continuous history - Patligram, Patliputra, Palibothra,

Kusumpur, Pushpapur , Azeemabad and Patna. The name Patliputra may have been der ived from the Patali , a legendary queen.

In Patna, Sahib is the holy shr ine of Shikhs. This is said to be the second- most impor tant

Gurdwara in India. It is the bir thplace of Guru Gobind Singh, the 10th Guru of the Sikhs. It is

built in white marbles, w ith kiosks on the terraces. It is interest ing to trace the name of the place Patna, which is supposed to have been der ived from two temples that exist in Patna.

The temples are known as Badi Patan Devi and Chhot i Patan Devi.

The name Patna is popular ly believed to be der ived from these two Patan Devi temples.

The Badi Patan Devi temple is located at Maharajganj, about six miles east of Patna Junction. Gulzarbagh rai lway stat ion is at a distance of half a mile. The Chhoti Patan Devi

temple is located at Patna City Chowk, about two miles from Patna City rai lway stat ion.

2.3. TOPOGRAPHY

Patna is located on the southern bank of the r iver Ganges in Eastern India. The total area of

Patna is 136 km2 (53 sq mi). Of this, the municipal area constitutes 99 km2 (38 sq mi), while the suburban area const itutes 36 km2 (14 sq mi). The exact car tographic co-ordinates

of Patna are 25.6°N 85.1°E. It has an average elevation of 53 m (174 ft). A character ist ic feature of the geography of Patna is at the confluence of r ivers. A narrow

str ip of somewhat high land about 8 ki lometers in width along the southern bank of the r iver Ganges having very fer tile soil and alluvial fer t ile plains in the remaining por t ions.

2.4. CLIMATE & RAINFALL DATA

Patna has a Humid subtropical climate with extremely hot summers from late March to ear ly June, the monsoon season from late June to late September and chilly w inter nights

and foggy or sunny days from November to February.



Rainfall intensities (month wise) from Meteorological Department

S. N

o.

Ye

ar

Jan Feb Mar Apr May June July Aug Sep Oct Nov Dec

R/F

%D

ep.

R/F

%D

ep.

R/F

%D

ep.

R/F

%D

ep.

R/F

%D

ep.

R/F

%D

ep.

R/F

%D

ep.

R/F

%D

ep.

R/F

%D

ep.

R/F

%D

ep.

R/F

%D

ep.

R/F

%D

ep.

1

20

11

0.5

-96

4.1

-56

7.1

-26

14

.1

74

50

.6

92

26

2.9

11

0

14

1.3

-58

33

4.6

27

34

4

58

3.1

-94

0

-10

0

0

-10

0

2

20

12

7.6

-42

0.8

-91

8.5

-11

11

.2

38

0

-10

0

25

.9

-79

40

3.1

21

20

6.6

-22

22

6

4

43

.6

-21

0

-10

0

0

-10

0

3

20

13

12

.4

-5

36

.8

29

1

0.9

-91

12

.7

57

11

5

33

6

13

1.3

5

66

.2

-80

18

5.4

-30

18

4

-15

17

3

21

2

0

-10

0

0

-10

0

0

50

100

150

200

250

300

350

400

450

Jan Feb Mar April May June July Aug Sep Oct Nov Dec

Rai

Months

Graph 2.1 Arithematic Averages of Rainfall

2011 2012 2013



2.5. DEMOGRAPHICS

In 2011, Patna had population of 5,838,465 of which male and female were 3,078,512 and

2,759,953 respect ively. In 2001 census, Patna had a population of 4,718,592 of which males were 2,519,942 and remaining 2,198,650 were females.

There was change of 23.73 percent in the population compared to population as per 2001. In the previous census of India 2001, Patna Distr ict recorded increase of 30.17 percent to i ts populat ion compared to 1991.

2.6. ECONOMY

Patna being the only impor tant city in the state, has acquired the strong position in regional t rade and business. It is also the centre for education and health faci lit ies. A software

technology park is located in the city and more thrust for IT has been envisaged. The concentrat ion of industr ial activit ies in Patna is low. Few industr ies exist ing include steel

cast ing, cotton mills, warehousing, electronics, leather & shoes etc. The state government is under process of drafting a new industrial policy which is expected to promote agro products, food processing, medical plants, sugar , tea, jute and related industr ies in the

region.

-150

-100

-50

0

50

100

150

200

250

300

350

400

Jan Feb Mar April May June July Aug Sep Oct Nov Dec%

Months

Graph 2.2: Departure (%Dep) of Rainfall from Long period

averages of Rainfall

2011 2012 2013



2.7. TRANSPORTATION

There is an airpor t, Lok Nayak Jaiprakash Airport , which is classified as a restr icted international airpor t . The ar r ival of several low-cost carr iers and a number of new

destinations have caused a growth in air t raffic in recent years, as has an improvement in the situation with regard to law and order . The Airpor t Authority of India (AAI) has proposed to develop a civi l enclave at Bihta Air Force Station to serve as the new airport for Patna. The mili tary air field lies 40 kilometres southwest of Patna, in Bihta.

2.8. ADMINISTRATIVE SETUP

The civic administrat ion of Patna is run by several government agencies, and has over lapping structural divisions. At least five administrative definit ions of the city are available; listed in ascending order of area, those are:

1. Patna division

2. Patna distr ict (also the Patna Police area),

3. Patna Metropolitan Region (also known as Patna Planning area)

4. "Greater Patna" or PRDA area, which adds to the PMC area a few areas just adjacent

to i t

5. Patna Municipal Corporation area (or "Patna city main") .

****



CHAPTER-3

PROFILE OF PATLIPUTRA INDUSTRIAL ESTATE

3.1. PATLIPUTRA INDUSTRIAL AREA

The BIADA is responsible for promoting and assist ing the rapid development of industr ies

in the industr ial areas and estates of Bihar . Patliputra industr ial area comes under Patna distr ict shown in Fig 3.1. A list of industr ies was provided by BIADA for Pat liputra

industr ial area and on that basis our team started survey dur ing the month of August and September . List of industr ies included the entire industr ies that were operat ional, under

construct ion, closed and vacant plots. Patliputra Industr ial area is situated in the west direct ion of Patna City. It is on the bank of Ganga, The waste water generated from the industr ies is discharged into big nallah leading to River Ganga. There is no ETP/ STP

installed for the treatment of domestic & Industr ial waste water generated from the Industr ial area. The untreated/ polluted water affecting the quality of River Ganga.

Fig 3.1 Map showing location of Patna District



Fig 3.2 Google Map showing location of Patliputra Industrial area

3.2 INVENTORY OF INDUSTRIES

Patliputra industr ial area is the centre of several industr ies. As per information collected dur ing the survey, i t was found that most of the industr ies located in this region are small and medium scale type. Distr ibut ions of industr ies with respect to the plot area are summar ized in Table 3.1



Table 3.1 Summary of Distribution of Industries & Plot area

Working/ Functional Under Construction Closed Vacant/Cancel

Total no.

of

Industries

Total Plot

Area

(sq.ft)

No

. of

Ind

us

trie

s

To

tal

Plo

t a

rea

(Sq

.ft)

% o

f P

lot

Are

a

No

. of

Ind

us

trie

s

To

tal

Plo

t a

rea

(Sq

.ft)

% o

f P

lot

Are

a

No

. of

Ind

us

trie

s

To

tal

Plo

t a

rea

(Sq

.ft)

% o

f P

lot

Are

a

No

. of

Ind

us

trie

s

To

tal

Plo

t a

rea

(Sq

.ft)

% o

f P

lot

Are

a

Less than 0.25 Acres

(10890 sq. ft) 33 221,163 8.1 9 60,138 19.9 10 67,026 12.7 3 20,372 37.36 55 368,699

From 0.251 to 0.50 Acres

(21786 sq. ft) 28 441,009 16.1 2 35,478 11.7 8 132,803 25.1 0 0 0 38 609,290


(43573 sq. ft) 15 471,935 17.2 1 43,560 14.4 3 110,910 21.0 1 34,150 62.6 20 660,555


(65360 sq. ft) 10 501,182 18.3 0 - 0.0 2 102,970 19.5 0 0 0 12 604,152

Above 1.5 Acres

(Above 65361 sq. ft)

4 1,102,697 40.3 2 163,584 54.0 1 115,616 21.8 0 - 0.0 7 1,381,897

TOTAL 90 2,737,986 100.0 14 302,760 100.0 24 529,325 100.0 4 54,522 100.00 132 3,624,593

% of Total

Plot Area 75.54 8.35 14.60 1.50

Summary: Total working or functional plot area= 2,737,986 (Sq. ft),_______________ = 62.86 (Acre) Total Under construction plot area= 302,760 (Sq. ft),_____________________ = 6.95 (Acre)

Total closed units plot area= 529325 (Sq. ft), ______________________________=12.15 (Acre)

Total vacant/cancel plot area=54,522 (sq. ft) _______________________________=1.25 (Acre) Total Area = 3624593 (sq ft)______________________________=83.20 (Acre)



As per above mentioned detai ls and data collected dur ing industr ial survey, The Pat liputra Industr ial area is spread into 105 acre, out of which 84 area occupied by 132 numbers of

industr ies and remaining area is for infrastructural activity. Under 84 acre Working/ operat ional are 90 numbers, under constructions are 14 numbers and closed

plots are 24 numbers. As repor ted about 4 plots are under cancel plots having an area of 1.25 acres. , Two numbers of plots are vacant cover ing area of 0.20 acre; list of vacant plot is attached in Annexure VI. Categor ization of industr ies on the basis of numbers is

mentioned in Table 3.2

Table 3.2 Categorization of Industries

Cur rent scenario of distr ibut ion of industr ies with respect to the total plot area occupied by working, under construct ion, Closed and vacant is shown in Graph 3.1

-

5,00,000.00

10,00,000.00

15,00,000.00

20,00,000.00

25,00,000.00

30,00,000.00Ar

Distribution of Industries

Graph 3.1 Current Scenario of Plot Area wise Industrial

Categorization

1424

4

S. No Types of plots Numbers

1 Working or Functional 90

2 Under construct ion or construct ion to be star ted 14

3 Closed 24

4 Vacant/ Cancelled 4 Total no. of Industries 132

90



Total number of industr ies distr ibuted under 0.25, 0.50, 1.0, 1.5 acres and above has been discussed respect ively in Graph 3.2. The graph shows maximum number of industr ies

around 55 are located under 0.25 acres, followed by 38, 20, 12 and 7 numbers are distr ibuted among 0.50, 1.0, 1.50 and above 1.5 acres of plot area respectively in Pat liputra

Industr ial area.

On the basis of the above graph, a pie char t has been prepared wherein the percentage of total plot area occupied with respect to the industr ial categor ies i.e. working, under

construct ion, closed and vacant plots have been discussed.

0

10

20

30

40

50

60

Less than0.25 Acres

From0.251 to

0.50 Acres

From 0.51to 1.0Acres

From 1.1to 1.5Acres

Above 1.5Acres

55

38

20

127Nu

Areawise Distribution of Plots

Graph 3.2 Area Wise Industrial Plot Distribution



Out of Four categories; maximum plot area has been covered by working industr ies i.e. 75.54% followed by closed industr ies i.e. 14.60% plot area and 8.35% are under construct ion or allotted plots in which construct ion is yet to star t while remaining 1.5% are vacant plots.

3.3 INDUSTRIAL SECTORS IN PATLIPUTRA

Major industr ial sectors located in Patliputra region are summar ized in Table 3.3 in which sector w ise estimat ion of wastewater generation and projected wastewater is discussed. Also no. of functional units in each sector is mentioned. In this, we have distr ibuted each

industry in 12 sectors and on that basis we have appraised total wastewater generat ion from domestic plus industr ial act ivity. Also, we have discussed that how much area is

covered by each industr ial sector . Most ly automobile service station and inst itut ions are dominating in the Industr ial area and there is probability of coming of Institution sector on

plots which is closed or canceled.

75.54

8.35

14.60

1.50

Graph 3.3 % of Total Plot Area Occupied

Working

Under Construction

Closed

Vacant/cancelled



Table 3.3 Summary of Sector wise distribution of industries & Wastewater Estimation

Industrial

Group

No of

Industry Functional Closed U/C

Vacant/

Cancel

DWW

(lit/day)

PWW

(lit/day)

BOD

(mg/l)

PDWW

(lit/day)

PPWW

(lit/day)

Plot area

in Sq ft

Automobile 9 9 0 0 0

11,385

61,000 350

11,385

61,000 148,617

Chemical 5 2 1 0 2

1,175

2,000 350

2,938

5,000 49,795

Engineer ing 33 21 10 1 1

45,030

55,200 250

70,761

86,743 712,015

Food 10 5 3 2 0

17,910

620,000 600

35,820

1,240,000 409,869

Institut ion 22 14 1 7 0

116,055

123,375 250

182,372

193,875 1,479,683

Mineral Water 2 1 1 0 0

810

20,000 100

1,620

40,000 25,016

Others 26 20 3 3 0

80,775

23,750 250

105,008

30,875 389,178

Pharmaceutical 5 4 1 0 0

2,070

10,000 400

2,588

12,500 76,044

Plastic 11 8 1 1 1

4,905

3,500 250

6,744

4,813 183,896

Poultry 1 1 0 0 0

675

500 500

675

500 15,000

Pr int ing 6 5 1 0 0

12,825

6,500 250

15,390

7,800 127,355

Textile 2 0 2 0 0 -

-

500 - - 8,125

132 90 24 14 4

293,615

925,825 4050

435,300

1,683,105

3,624,593

Total Estimated

Value

1,219,440

2,118,406

Textile: Waste water generation not considered from Textile sector as both units have been closed and these were dry units of Hosiery goods *DWW: Domestic Wastewater, PWW: Process Wastewater

*PDWW: Projected Domestic Wastewater, PPWW: Projected Process Wastewater



In Patliputra distr ict , we have categor ized each surveyed industry into 12 categor ies. Of these total categor ies, maximum percent of plot area in the region has been covered by

Inst itut ional setups (41%) followed by Engineer ing and Food sectors i .e. 20% and 11% respect ively. Other small scale unit covers 11% of total area. Apar t from that sector like

Plastic, Automobiles and Pr inting covers 9%. Of the area Rest 4% is covered by industr ies like Text i le, Poultry, Chemical and Mineral water units.

On the other hand in Graph 3.5, we have discussed about the number of industr ies with

respect to the each industr ial sectors. As it is clear ly indicated in the below mentioned graph

that maximum number of industr ies per taining to Engineer ing and Institut ional categor ies followed by Plast ic, Automobiles and Food processing type which includes Juices, flour ,

Biscuits, Snacks, Jam & Jelly, Spices, Dal Besan, Rice mills etc. Average number of Chemical, Pharmaceuticals and Pr inting units are distr ibuted. Subsequent ly, Very few numbers belong

to Mineral water , Texti le and Poultry sectors.

4%

1%

20%

11%

41%

1%11%

2%5%

0%

4%

0%

Graph 3.4 % of Total Plot Area Occupied by Industrial Sector

Automobile

Chemical

Engineer ing

Food

Institution

Mineral Water

Others

Pharmaceut ical

Plast ic

Poultr y

Pr int ing

Text i le



Other industr ial units include Card Board box, Glass, Diamond cutting, corrugated boxes, Paper , Plywood, Cement work, t iles and Electr ical panel shops are also present in

substant ial numbers.

3.4 PRESENT SCENARIO OF WASTEWATER INVENTORIES

With all the information/ data collected dur ing the survey, we have appraised present

scenar io of wastewater quantity generated from domestic and industr ial processes. The same has been discussed in Graph 3.6.

0

5

10

15

20

25

30

35NIndustrial Sectors

Graph 3.5 Industrial Sector wise no. of Industry



While analyzing the above mentioned graph, i t is apparent that total 12 categor ies of var ious industr ial clusters, maximum domest ic and process wastewater is generated from

Food sector followed by Inst itut ional setups that generates significant quantity of domestic

and few process activity from the Infrastructures like Malls. Other per taining to Wooden,

Cement, Corrugated boxes etc. also produce domestic wastewater . Sectors like Automobiles and Engineer ing produces average quantity of wastewater from the process in addit ion to the domestic wastewater . Other sectors like Pr inting, Texti le, Plastic, Pharmaceut icals and

Poultr ies are the minor contributors of wastewater .

3.5 FUTURE PROJECTIONS OF WASTEWATER QUANTITY

To evaluate the capacity of CETP, we have made few projections on the basis of product manufactur ing and water consumption in domest ic and industr ial processes discussed in

Graph 3.7

-

1,00,000

2,00,000

3,00,000

4,00,000

5,00,000

6,00,000

7,00,000W

as

Industrial Sectors

Graph 3.6 Current Scenerio of Sector wise estimation of

Wastewater Generation

DWW (li t/ day) PWW (li t/ day)



Projected wastewater generat ion is evaluated maximum in case of Food processing types

followed by Institut ional setups that produce domestic and process wastewater in

infrastructures like malls. Engineer ing, Automobiles and other categor ies may have average

contr ibut ion while sectors like Poultr y, Pr int ing, Plastic, Texti le, chemical and Mineral water w ill produce less quant ity of wastewater .

3.6 CATEGORIZATION OF INDUSTRIES (RED, ORANGE AND GREEN)

Out of the entire functional, under construct ion, closed and vacant industr ies/ plots covered dur ing industr ial survey are fur ther classified into Red, Orange and Green on the basis of

pollut ion load as per schedule VIII norms st ipulated by Ministry of Environment & Forests, Govt. of India which is shown in below mentioned Char t.

-

2,00,000

4,00,000

6,00,000

8,00,000

10,00,000

12,00,000

14,00,000 Pro

Industrial Sectors

Graph 3.7 Projected Waste Water Generation

PDWW (lit / day) PPWW (l it/ day)



It can be clear ly seen that maximum number of industr ies covered as per the list dur ing the

survey provided by BIADA falls under Green category which is around 92. Numbers cover ing 70% that contr ibutes less to the pollut ion load followed by Orange Category which

is 22 numbers cover ing 17% and Red category is 18 numbers cover ing13% of total area.

Categor ization of Industr ies based on MoEF is attached in Annexure IV

3.7 MAJOR INDUSTRIES LOCATED IN PATLIPUTRA AREA

Based on the survey done by our team in Patliputra Industr ial Area major contr ibutor of

wastewater generat ion belongs to Beverages, Agro-based, Dairy, Infrastructure,

Automobiles and Engineer ing sectors. Name of few industr ies are mentioned below:

S. No Name of Industry Address Projected WW Sector Category

1 M/s Hindustan Coca

Cola Beverage Pvt.

Ltd.

A - 1, A -2

& E-1

355,125

Food/ Beverage Orange

2 M/s Ambey Agro

industries

A - 3

128,600

Food Orange

3 M/s Golden Dairy

Pvt. Ltd.

N.S.A - 7

32,250

Dairy Red

4 M/s. Srenujj & Co.

Limited

NBS-1, N.S.C-1

67,750

Diamond work Red

5 M/s Patwari Udyog D-5,D-6,D-7 16,800

Engineering Green

Red -18 Nos, 13%

Orange- 22 Nos

17%

Green,-92 Nos,

70%

Graph 3.8 Distribution of industry in Patliputra

Red

Orrange

Green



S. No Name of Industry Address Projected WW Sector Category

Pvt. Ltd. & N.S.

6 M/s P&M

Infrastructure Ltd.

Cinepolis mall

104,050

Institution Orange

8 M/s HAV

Automobiles Ltd.

C-24 1/4

17,475

Service centre Orange

9 Natural Dairy N.S.11 101,125 Dairy Red

10 M/s. Bharat Hydraulic

Pvt. Ltd ( Vancos &

Comp)

12/2

21,700

Engineering Red

11 M/s. Recon C-18 22,500 Institution Green

Photographs of Industries visited during Industrial Survey in



Patliputra Industrial Area

*********



CHAPTER-4

PRODUCTION PROCESS

4.1. PRODUCTION PROCESS Major ity of industr ies in industrial area are food processing such as Beverages (soft dr ink

and juice), Biscuits, Bread, Rice Mills, Ice-cream, Dairy Roller Flour Mill, Hatchery which

generate biodegradable wastewater . There are nine Automobile Service stat ions generates

high quantum of wastewater contains Oil & Grease. Few industr ies such as packaging, engineer ing, plast ic etc. generate small/ negligible wastewater .

The flow char ts for var ious products of industr ies are shown in the following pages. The

flow char t also indicates the major sources of process wastewater generat ion:

Flour Mill

Vehicle Service Stat ion

Milk

Bread

Beverages

Baker ies

Paint

Newspaper Pr inting

Syrup Manufactur ing

Soft Dr ink

RCC/ Cement pipe

PVC Pipe

Pharmaceuticals

Mineral Water



CHAPTER-5

QUANTIFICATION & CHARACTERISTICS OF WASTE WATER/ EFFLUENTS

5.1 ASSUMPTIONS IN CALCULATION OF WATER CONSUMPTION AND EFFLUENT

GENERATION

A minimum quant ity of 500 li tr es, 1000 li tr es and 2000 li tr es have been considered for

small, medium and large sized plots respect ively, which either did not repor t the figures or their products (e.g. packaging and plast ic goods) do not require water .

Domestic water consumption for residents of inst itutes and industr ies is taken @125 LPCD.

Domestic water consumption for manpower of food processing industr ies is taken @45

to 100 LPCD including for quality test ing laboratory and hand wash.

Domestic water consumption for students and staff of institutes is taken @25 LPCD.

5.2 WATER CONSUMPTION AND EFFLUENT GENERATION

Dur ing survey, i t was observed that industr ies have neither water meters for measurement nor awareness on cor rect figures of water consumption and waste water generat ion. Except few, most of the industr ies and inst itutes had repor ted arbitrary figures of water

consumption and waste water generat ion. In some cases, the data was not even repor ted.

This is shown in Annexure-III.

Foods processing such as Beverages (soft drink and juice), Biscuits, Bread, Rice Mills, Ice-

cream, Dairy & Agro products, RO package water industr ies are water intensive, therefore, consume significant quant ity of water due to frequent clean-in-process (CIP) requirement.

Accordingly, these units generate huge quantity of biodegradable wastewater .

Industr ies such as engineer ing, chemicals manufactur ing generate moderate quant ity of wastewater .

Few industr ies such as packaging, plastic etc. use and generate small/ negligible

quant ity of wastewater .

Inst itutes, warehouses, offices and service providers consume water for domestic use, laborator ies and gardening etc. The waste water is generated in form of sewage.

As per the calculat ion of waste water generation (shown in Annexure-2) the total

quant it ies are tabulated below:



Table 5.1 Details of Wastewater Generation from Domestic and Process Activities

Industrial

Group

No of

Industry Functional Closed U/C Vacant

DWW

(lit/day)

PWW

(lit/day)

BOD

(mg/l)

PDWW

(lit/day)

PPWW

(lit/day)

Plot area

in Sq ft

Automobile 9 9 0 0 0

11,385

61,000 350

11,385

61,000

148,617

Chemical 5 2 1 0 2

1,175

2,000 350

2,938

5,000

49,795

Engineering 33 21 10 1 1

45,030

55,200 250

70,761

86,743

712,015

Food 10 5 3 2 0

17,910

620,000 600

35,820

1,240,000

409,869

Insti tution 22 14 1 7 0

116,055

123,375 250

182,372

193,875

1,479,683

Mineral Water 2 1 1 0 0

810

20,000 100

1,620

40,000

25,016

Others 26 20 3 3 0

80,775

23,750 250

105,008

30,875

389,178

Phar maceutical 5 4 1 0 0

2,070

10,000 400

2,588

12,500

76,044

Plastic 11 8 1 1 1

4,905

3,500 250

6,744

4,813

183,896

Poultry 1 1 0 0 0

675

500 500

675

500

15,000

Pr inting 6 5 1 0 0

12,825

6,500 250

15,390

7,800

127,355

*Texti le 2 0 2 0 0

-

- 500

- -

8,125

132 90 24 14 4

293,615

925,825 4050

435,300

1,683,105

3,624,593

TOTAL

1,219,440 420

2,118,406

Note: DWW-Domestic Wastewater ; PDWW-Projected Domestic Wastewater

PWW-Process Wastewater ; PPWW-Projected Process Wastewater

*Text i le: Readymade Garment Shops & presently closed, hence no wastewater generation



Hence, it is evident from the table 5.1:

The total domestic wastewater generation from operational units =293,615 l/ d

The total process wastewater generation from operational units = 925,825 l/ d

The total effluent from operational units = 1,219,440 l/ d

The projected domestic wastewater = 435,300 l/ d

The projected process wastewater = 1,683,105 l/ d

The total projected effluent = 2,118,406 l/ d

5.3 DESIGN CAPACITY OF PROPOSED CETP

As per the estimated wastewater generation from industr ies, it is proposed to install a

Common Effluent Treatment Plant (CETP) of 2.0MLD (2000KL/ day) capacity for treatment of industr ial and domestic effluent likely to be discharged by the exist ing industr ies, institutes and including provision for vacant plots. Since the exist ing

industr ies/ industr ial plots are shift ing from manufactur ing process to institut ional activit ies, the design flow has been considered in the lower side.

5.4 CHARACTERISTICS OF WASTE WATER

The wastewater from Food processing industr ies; such as Dairy, Beverage, Bread,

Bakery, Soft dr ink etc.; contains high BOD, COD, TSS and oil/ grease/ fats. However , wastewater is easily biodegradable; and it w ill require biological treatment.

Wastewater from Automobile service station, engineer ing, newspaper pr int ing and chemical manufactur ing industr ies contains mainly COD, TSS, oil/ grease and less BOD.

Hence, it is less biodegradable and it w ill require physico-chemical treatment.

The BOD of composite wastewater (process and washing/ cleaning) has been worked out to be 420 mg/ l in Table 5.1.

The combined character ist ics of wastewater for design purpose has been shown in

Table 5.2



Table-5.2: Average Characteristics of Combined Untreated Effluent for Design

S. No. Parameters Units Values

1 pH value - 6.5 ~ 8.5

2 Total Suspended Solids (TSS) mg/ l 400~ 450

3 Chemical Oxygen Demand (COD) mg/ l 1200

4 Biochemical Oxygen Demand (BOD, 3 days,

27 0C)

mg/ l 500

5 Oil and Grease mg/ l 50~ 70

Design Flow for Proposed CETP: 2000 KLD = 2 MLD

5.5 CHARACTERISTICS OF TREATED WASTE WATER

The treated water from the CETP will meet the stipulated norms of sur face water discharge standard and is placed below:

Table-5.3: Characteristics of Treated Water as per CPCB/SPCB


1 pH value - 6.5 ~ 8.5

2 Total Suspended Solids (TSS) mg/ l <100

3 Chemical Oxygen Demand (COD) mg/ l <250

4 Biochemical Oxygen Demand

(BOD, 3 days, 27 0C)

mg/ l <30

5 Oil and Grease mg/ l <10

*****

CHAPTER-6



CRITERIA FOR SELECTION OF WASTEWATER TREATMENT

TECHNOLOGIES/ SCHEMES

Dur ing the preparation of Feasibility Repor t, var ious options have been cr itically examined for the consideration of best technologies suitable for the establishment of

CETP in industr ial area. The objective of wastewater treatment technology selected for the treatment of effluent generated from the industr ial area is to provide:

1. Discharge water quality standards by regulatory bodies. 2. Cost Economic. Less Capital and Operating Cost. 3. Complete CETP system built-in in the available land area i.e. Minimum area

requirement. 4. Trouble-free in operation of CETP i.e. simple and reliable maintenance. 5. Consistent delivery of treated wastewater . 6. Withstand var iations in pollut ion and hydraulic load. 7. Recycling/ reuse of the treated effluent for hor t iculture purpose.

Var ious treatment technologies available for wastewater treatment are discussed

below to meet the above mentioned objectives and to opt the appropr iate one for Patliputra Industr ial area:

6.1 ACTIVATED SLUDGE PROCESS

It is a biological wastewater treatment process is w idely used by large communities

where large volumes of waste water to be treated economically.

Fig: 6.1 Schematic Diagram of a Conventional Activated Sludge Process

Activated Sludge Process (ASP) is a suspended growth aerobic process. It is provided with pr imary clar ifier to reduce the organic load in biological reactor (aeration

basin). About 40% of organic load is intercepted in pr imary clar ifier in the form of sludge,

decreasing the loading in the aeration tank. After aeration tank, the mixed liquor is sent to secondary clar ification where sludge and liquid are separated. A major

Excess Sludge Returned Sludge

Effluent Secondary

Clarifier

Aeratio

n

Tank

PST

Influent



por tion of the sludge is re‐circulated and excess sludge is sent for the disposal.

Merits

Good process flexibility Reliable operation Proven track record in all plant sizes Low odor emission Energy production Ability to w ithstand nominal changes in water character ist ics

Demerits

High energy consumption Skilled operators needed Uninter rupted power supply is required Requires sludge digestion and drying Less nutr ient removal

6.2 SEQUENTIAL BATCH REACTOR (SBR)

It is a fi ll and draw activated sludge system for waste water treatment. Equalization, aeration & Clar ification can all be achieved using a single Batch Reactor . SBR systems

have been successful for large industr ial effluents. The SBR typically eliminates the need for secondary clar ifier .

Fig: 6.2 Schematic Diagram of SBR

Although SBR has shown more maintenance in operation since the process is PLC

based, it shows higher efficiency and less area requirement for the CETP. It is a fi ll‐and‐draw batch aerobic suspended growth (Activated Sludge) process



incorporating all the features of extended aeration plant. After screening and de‐gritting, effluent is fed to the batch reactor. Reactor operation takes place in certain sequence in cyclic order and in each cycle, following operations are involved:

Anoxic Filling tank Aeration Sedimentation/ clar ification Decantation Sludge withdrawal

Merits

Excellent effluent quality Smaller footpr int because of absence of secondary clar ifiers and digester Recent track record available in large applications in India also Biological nutr ient (N&P) removal High degree of coliform removal Less chlor ine dosing required for post disinfection Ability to w ithstand hydraulic and organic shock loads

Demerits

Comparatively high energy consumption To achieve high efficiency, complete automation is required Highly skilled operators needed No energy production Uninter rupted power supply required

6.3 MOVING BED BIO-REACTOR (MBBR)

Moving Bed Biofi lm Reactor is an aerobic attached biological growth process. It does not require pr imary clar ifier and sludge recirculation. Raw sewage, after screening

and de‐ gritting, is fed to the biological reactor.

In the reactor , floating plastic media is provided which remains in suspension. Biological mass is generated on the sur face of the media. Attached biological mass

consumes organic matter for their metabolism. Excess biological mass leaves the sur face of media and it is sett led in clar ifier .



Fig: 6.3 Schematic Diagram of a Moving Bed Bio‐Reactor

MBBR is mostly preferred for the small effluent flow rates. In large plant, media quantity is very high and it requires long shut down per iod for plant maintenance. In fact, it may not be successful for large capacity plants.

Merits

Moving Bed Biofi lm Reactor needs less space Ability to w ithstand shock load with equalization tank option High operator oversight is not required

Demerits

High operating cost due to large power requirements Not much exper ience available with larger capacity plants (>1.5 MLD) Skilled operators needed No energy production Much less nutr ient removal

The comparative of technologies are discussed subsequently for better selection of suitable treatment technology:

Excess Sludge Air Blower

Effluent Secondary

Clarifier

MBBR II MBBR I Influent



Table 6.1: Comparative of Merits and Demerits of ASP, SBR and MBBR technologies

S.

No.

Defining

Parameters

ASP SBR MBBR/ FAB

1 Type of treatment/ Process

Continuous suspended growth Tr eatment

Fill and Draw regime Continuous Attached growth Treatment

2 System Descr iption (component w ise)

Pr imary treatment-Effluent collection and pumping- Bioreactor

w ith Air distr ibution gr id- Settling Tank- Disinfection - Fi ltr ation

with DMF-ACF. Sludge removal- Sludge digester tank- Dewater ing of sludge.

Pr imary treatment-Effluent collection and pumping- Bioreactor

w ith Air distr ibution gr id & Decanter - Disinfection. Sludge

removal - Sludge dewater ing

Pr imary treatment-Effluent collection and

pumping - Bioreactor w ith MBBR media & Air

distr ibution gr id- Tube settler - Disinfection- Fi ltr ation with DMF-ACF. Sludge removal - Sludge

digester tank- Dewater ing of sludge.

3 Sludge handling system requir ement

Yes with Suitable mechanism



4 Advantages Suitable for Bigger plant capacity. Conventional tr eatment.

Batch process involves par tial nitr i fication of wastewater . Suitable for small plant & Big Plants along with Automatic

Operation (PLC Based)

Attached growth pr ocess. Compact plant w ith resistance to shock load. Easy for

installation. With Bio-digested sludge.

5 Disadvantage High Power & Maximum Space Required, MLSS to be maintained and

Continuous sludge recirculation required. Susceptible to sock

loads. Comparatively high AMC cost

High Capital Cost. MLSS to be maintained. Higher degree of

automation & contr ol. Tedious operation needs trained site

person. Comparatively high AMC cost

Maintenance of air gr id in MBBR Tank is Cr it ical.

Possibili ty of loss/ car ryover of media. Annual

make up of media requir ed.



S.

No.

Defining

Parameters

ASP SBR MBBR/ FAB

6 Installation Entire Electr o-

Mechanical er ection take place at site, hence

takes more time

Entire Electro-

Mechanical er ection take place at site, hence

takes more time

Less Time for MS

Package System / Electro-Mechanical

almost 4-6 weeks 7 Capital Cost Least High Cost Medium cost 8 Civi l Cost High Cost Least Medium cost 9 Electro-

Mechanical Cost Least High Cost Medium cost

10 Daily Power Cost Medium Least Maximum 11 Area Requir ement Maximum Normal Normal 12 Annual

Maintenance cost Maximum Least Normal

13 Operation Easy but requires a continuous observation

Easy but requires a continuous observation

Easy and System operate on i ts own with Simple Automation

14 Manpower Semiski lled for continuous basis

Skilled for continuous basis

Semiski lled not on continuous basis

15 Automation Not required As per r equirement Not required

6.4 RECOMMENDED TECHNOLOGY

Based on the above discussed treatment technologies and appraising present area

availabili ty and type of wastewater generated from different industr ial sectors, i t has been suggested to setup CETP based on Sequential batch Reactor . Detailed descr ipt ion of the

proposed treatment scheme based on SBR has been discussed in Chapter -7.

*****



CHAPTER -7

PROPOSED TREATMENT SCHEME

Based on the character ist ics of combined wastewater mentioned in Table 5.2, the wastewater contains significant suspended solid (TSS), BOD, COD and Oil & Grease. This

requires preliminary treatment (Screen, Oil & Grease and Gr it Removal, Equalizat ion),

Physico-chemical t reatment for removal of TSS and par t ial removal of BOD and COD;

Biological treatment to achieve BOD level upto 30mg/ l followed by ter t iary treatment (Chlorination followed by Filtrat ion) to achieve the prescr ibed norms for disposal into inland sur face water , reuse in hor ticulture and par tial reuse into industr ial process like

Automobile Service Stations.

7.1 PROPOSED TREATMENT SCHEME

The Proposed CETP treatment at Pat liputra will have design capacity of 2.0MLD (2,000cu.

m/ day) .

The combined effluent has moderate values of parameters-TDS, BOD, COD, and Oil & Grease. It is compulsory for each/ individual industry to install a screen for trade effluent

and a septic tank for domest ic wastewater before connecting in to the sewer / drain leading

to CETP.

The treatment scheme consists of: 1. Pr imary Treatment (Screening, Oil/ grease skimmer & gr it removal tank,

Equalizat ion) 2. Physico-chemical treatment (Chemicals dosing, Flash Mixer , coagulation,

Flocculation, Pr imary Settler , sludge dewatering) 3. Secondary/ Biological t reatment (SBR) 4. Tert iary treatment (disinfect ion using chlor inat ion and fi lt ration consist ing of

Pressure sand Filters & Act ivated Carbon Filters).

The oil / grease, grit & other similar solids shall be removed in pre-settling/ gr it removal chambers. The suspended solids & colour , if any, shall be removed by physico-chemical

t reatment whereas the removal of bio-degradable soluble organic matter shall be achieved in the biological t reatment. Chlor inat ion will be provided to kill the bacter ia in the treated

effluent.

Although norms for treated effluent discharge into the inland surface water stipulated

by Bihar State Pollution Control Board shall be achieved after Secondary treatment but

tertiary treatment shall also be provided in our scheme to remove residual/ escaped

organic matter and TSS shall be removed in filters. However as Factor of safety, the



tertiary treatment had been provided as polishing treatment.

Flow meters shall be installed in the pump pipe line of equalized wastewater and final outlet after filt rat ion. A calibrated 90o V-notch shall be installed for flow measurement, in

open channel before equalizat ion tank.

The common effluent treatment plant would have following treatment units:

1) Raw effluent intake and bar screen chamber 2) Raw effluent pump house 3) Effluent receiving/ sti lling chamber 4) Flow measurement channel 5) Medium screen 6) Oil/ grease Skimmer and Gr it Removal Tank 7) Equalizat ion tank 8) Chemical House – Solut ion Preparat ion and dosing system. 9) Flash mixer and coagulat ion tanks 10) Flocculation chamber 11) Pr imary Sett ler 12) Sequential Batch Reactors (SBR) including selector basins, air -blowers, diffusers,

decanters and PLC 13) Wet sludge collect ion Tanks and Pumps house 14) Sludge dewater ing system – Filter press and Volute press/ Centr ifuge 15) Dewatered/ dry Sludge storage area 16) Chlor ine dosing system 17) Chlor ine Contact & Pre-fi lt ration Storage Tank 18) Pressure Sand Filters and Activated Carbon Filters 19) Treated effluent/ disposal pipe/ channel

The above units shall be provided with necessary mechanical equipment, electr ical

ar rangements, instrumentation & automation with SCADA for SBR operat ion. In addit ion

to above, CETP campus shall have an office and a laboratory with essent ial faci lit ies for analysis of common parameters.



7.2 DETAILED TREATMENT SCHEME

The effluent from industr ial units in Patliputra shall be collected through RCC drain/ sewer

line approaching to CETP area.

1. Raw Effluent Tank with Screening: Effluent would pass through a pair of bar screens

to be installed in intake chamber, then into raw effluent storage tank and pump house. The intake shall have stairs to reach up to screens platform. The screen in the intake shall be mechanical type for collection of screenings on the screen platform. The spacing between bars of screen will capture large mater ials (30mm or more size) from the effluent and hence these would not get entangled with pump impellers and other machinery of the plant.

2. Effluent Receiving Chamber: The raw wastewater collected in the wet well, would be

pumped into effluent receiving chamber . The pumps ( through MC panel) are linked to level controllers for automatic ON/ OFF operat ion. Effluent from receiving chamber flows (under gravity) into flow measurement channel, provided with Gauge chamber to measure the flow of incoming effluent and a medium spacing (manual cleaned) bar screen to capture finer screenings.

3. Oil/ Grease Skimmer & Grit Chamber: The raw effluent shall pass through Oil/ grease

Skimmer and Gr it Removal Tank. The floating oi l and grease present in the effluent is retained in oil and grease traps. The recovered oil/ scum formed on the top sur face of effluent shall be removed through Oil skimmer and stored in the drums for disposal. The gr it shall be removed from tank floor , though a mechanical scraper . Gr it shall be kept on dewater ing platform for draining out and shall be stored with dewatered sludge.

4. Equalization Tank: The equalization tank of sufficient holding capacity is provided to dampen the flow var iations and shock loads in terms of volume and strength and to achieve a consistent quality in downstream processes.

5. Physico-chemical Treatment: The use of fer rous sulphate dur ing physico-chemical

t reatment removes TSS in form of sludge. The soluble sulfur in presence of fer rous sulfate forms insoluble precipitate of fer rous sulfide. This removes sulfides from the effluent. Similar ly, chromium present in the effluent would also be removed as chromium hydroxide at alkaline pH maintained by addition of lime. The concentrat ion of phenolic compounds in raw effluent shall be negligible, hence does not require specific treatment for removal. The expected character istics of effluent after pr imary settler are shown in Table 7.1.

Table 7.1: Expected Characteristics of Effluent after Physico-chemical treatment



S. No. Parameters Units Approx. Values

1 pH - 8.0 - 8.5

2 Total Suspended Solids (TSS) mg/ l 150

3 Chemical Oxygen Demand (COD) mg/ l 600

4 Biochemical Oxygen Demand (BOD, 3-days, 270C) mg/ l 350

5 Oil and Grease mg/ l Less than 15

6 Total residual Chlor ine mg/ l Less than 1

7 Total Chromium as Cr mg/ l Less than 2

8 Phenolic compound as C6H5OH mg/ l Less than 5

6. Flash Mixer 1&2 (Coagulation & Flocculation Tank): The equalized effluent from equalizat ion tank shall be pumped at constant rate into two stage flash mixer followed by flocculation tank. Chemical solut ions namely fer rous sulphate and lime solution will be added in flash mixers and poly electrolyte solution into the flocculat ion tank with the help of dosing pumps attached to chemical dosing tanks. The chemicals w ith effluent get completely mixed by rapid mixing in flash mixers whereas slow mixing in flocculat ion tank allows formation of bigger size fast settling flocs. The pH of the mixture of fer rous sulphate and effluent in flash mixer is maintained around 8.5 by dosing of lime.

7. Primary Clarifier: After floc formation, this mixture enters into pr imary settler /

Clar ifier where sludge settles at bottom and the clear supernatant effluent flows into SBR tanks. The sludge is w ithdrawn into wet sludge pit w ith the help of valve provided in the valve chamber. The fi ltr ate shall be discharged into inlet of SBR basins. The physico-chemical treatment shall remove about 30% of BOD and 40% COD load of the effluent, in addit ion to complete removal of colour.

8. Biological Reactor (Sequential Batch Reactor): Major par t of soluble BOD and COD

load (organic mater ial present in the effluent) would be removed by biological t reatment using SBR (Sequent ial Batch Reactors) process for removal of BOD, COD, and Suspended Solids and nitrates. The DO level in SBR basins shall be maintained by controlling the operation of Turbo Blowers connected through DO sensor and PLC. SBR including selector basins, air -blowers with net work of air pipelines, diffusers, decanters and PLC shall be provided. SBR shall have two basins with decanters. Sequential Batch Reactor (SBR) shall work in Cyclic/ Batch mode. Two basins had been

proposed. Each SBR basins shall have selector basins. SBR process shall per form Biological Organic Removal and shall be capable of simultaneous sludge stabilization.

Proper mixing of bio-cells mass with influent and necessary oxygen supply for oxidat ion

of bio-degradable matter is done by means of air diffusers.

The oxygen required shall be supplied through fine bubble Diffused Aeration System with auto control of oxygen (DO) level in the Basins. The system shall be designed in



such a way that growth of filamentous bacter ia is restr icted. The complete operat ion including Filling of effluent, Aeration, Sludge Recirculation, Decant ing and wasting of

excess sludge shall be controlled by PLC. The total cycle time is kept 6 (six) hours, which can be changed through PLC.

The biological activity of microbes requires nutr ients i .e. Nitrogen and Phosphorous, which are vital elements for the growth of new cells (biomass) in the effluent. The

industr ial effluent would contain wastewater also from canteens, toi lets/ sept ic tanks; therefore, required “N” and “P” are available in the effluent. Return sludge would be

recycled with the help of submersible pumps so as to maintain the required degree of MLVSS and excess par t (waste sludge) would be sent into wet sludge collection pit.

The expected character istics of treated effluent after biological treatment are shown in Table 7.2:

Table 7.2: Expected Characteristics of treated Effluent after Biological Treatment

S.

No.

Parameters Units Values

1 pH - 7.5 - 8.0

2 Total Suspended Solids (TSS) mg/ l Less than 100

3 Chemical Oxygen Demand (COD) mg/ l Less than 200

4 Biochemical Oxygen Demand (BOD, 3-days, 270C) mg/ l Less than 25





9. Chlorine Contact Tank: After Secondary clar ifier , about 2.0 PPM of chlor ine gas through chlor inators shall be mixed in to settled effluent which shall be collected in Chlor ine Contact & Pre-fi lt ration Storage Tank for tert iary treatment. This w ill provide contact time while storage into effluent tank of Pump House before fi ltr ation.

10. Media Filters: Pressure Sand fi lters and Act ivated Carbon Filters shall be used in ser ies for filtr at ion. The operation of these filters shall be continuous. The back-wash of fi lters shall be carr ied out when residual pressure about 1.0 kg/ sq.cm. Indicated on the pressure gauge. The back-wash effluent shall be discharged into inlet of SBR tanks/ Equalizat ion tank.

A par t of fi ltered effluent shall be pumped for preparat ion of chemicals solution,



required for chemical house of this CETP and water ing the plantation/ hor t iculture in CETP premises. A par t of t reated effluent may be used for construct ion act ivit ies, after

mixing with fresh water . The remaining final t reated ( fi ltered) effluent shall be discharged into existing drain which ultimately meets with r iver .

The expected character istics of final treated effluent after ter tiary treatment ( final outlet of activated carbon filters) are shown in Table 7.3:

Table 7.3: Expected Characteristics of final treated effluent after Tertiary treatment


1 pH - 7.0 - 8.0

2 Total Suspended Solids (TSS) mg/ l Less than 50

3 Chemical Oxygen Demand (COD) mg/ l Less than 150

4 Biochemical Oxygen Demand (BOD, 3-days, 270C) mg/ l Less than 20





The treated effluent would meet the effluent discharge standards as specified by Bihar

State Pollution Control Board/ in latest amended Environment (Protect ion) Act 1986, subject to fulfi llment all of the following:

i . Implementat ion of Treatment scheme in totality (CETP units of matching capacity, shape/ configurat ion as per the approved drawings/ Detail Project Repor t.

i i. Total Daily Discharge of Untreated effluent (combined influent to CETP) does not exceed 2.0MLD (2000m3 / day).

i ii . Continuous Operation of CETP as per guidance of consultant and SBR technology provider .

Fig 7.1 Flow chart of Proposed Treatment Scheme



7.3 SLUDGE HANDLING SYSTEM

The chemical sludge generated from the physico-chemical t reatment would be collected

into Wet sludge Pit at tached to Sludge Pump house. The wet sludge (TSS range 8.0 to 10.0

g/ L) shall be pumped at constant rate for dewater ing through fi lter press and centr ifuge/ Volute Press. Filter press and centr ifuge are installed at elevated platform. The dewatered

sludge cake from the fi lter press would drop into the trolley and shall be stored into dry sludge storage collect ion shed for a per iod of about one month. Later , the dry sludge shall

be transpor ted to sludge disposal site as per directions of Bihar State Pollut ion Control

Board.

Waste bio-sludge from biological treatment, though negligible quantity is biodegradable and r ich in nutr ients. Bio-sludge shall not be mixed with chemical sludge so that it can be

used as manure and water for plantat ion within CETP and industr ial area. Proposed Plant layout enclosed as Annexure-V.



CHAPTER -8

DESIGN SPECIFICATION OF TREATMENT UNIT

8.1 SPECIFICATIONS FOR CIVIL UNITS

1) Requirement for all Concr ete Structures

a) All bedding & leveling concrete shall be minimum 100 mm thick in concrete grade M-10 (1:3:6) unless other wise specified.

b) Liquid retaining structures: The wall & bottom slab thickness shall not be less than 150 mm in any water retaining str ucture except in launders & channels. The same shall be designed using M-30 concrete design mix with OPC-43 gr ade and maximum 20 mm aggregate size for all str ucture member s.

c) Other structures: concrete shall be M-25. d) Medium reinforcement & cover of concrete shall be as per 7.1 & 7.2 of IS: 3370 par t

II. e) Water retaining str uctures such as tanks and sumps and concr ete roofs shall be

designed on a no crack basis & against upli ft pressure assuming sub soil water at Ground Level.

2) The size and number s of CETP units and Minimum recommended Sizes are given in the following Table.

3) Any item not covered in this Table, the specifications shall be as that of similar other i tem.

The unit ’s sizes had been worked out consider ing var ious design parameter s as applicable to the relevant treatment units w ith appropr iate arrangement and housing of equipment to handle the design flow.

Table- 8.1: CETP Units and Recommended Sizes

S.

No.

Unit Name Internal Size (Meters)

L x B x D or H

Nos.

(Qty)

1. Raw Effluent Intake & Screen

Chamber

6.0x3.20x5.0 1

2. Screens Coarse Screens

Medium Screens

0.80 (W) x 1.50(slant length) 0.80 (W) x 1.50 (H)

1

1

3 Raw Effluent Pump House (PH-1)

Raw Effluent Tank

Pump Room (Dry Room)

6.8x4.0x5.6

Liquid Volume= 54.4 KL,SWD = 2.00.

7.0x 6.8x 10.0

1

1

4 Elevated Receiving Chamber 1.80 x 1.80 x 2.0 (WD = 1.65) 1

5 a) Gr it removal tanks-cum- Oil &

Grease Removal Traps- Circular

4.30 Int. Dia. x 3.0 (SWD) 1



S.

No.


L x B x D or H

Nos.

(Qty)

Shape

5 b) Platform for Gr it dewater ing 2.50 x 2.50 x 1.0 2

6 Equalizat ion Tank

Liquid Holding Volume

= 674KL. (HRT = 8hours). 13.10 (ID) x (5.0 WD +0.6 FB)

1

7 Physico-chemical Treatment

7.1a Flash Mixing Tank -1 1.90x1.90x (2.0 SWD+0.40 FB) 1

7.1b Flash Mixing Tank -2 1.90x1.90x (1.95 SWD+0.45 FB) 1

7.1c Flocculation Tank 2.40x2.40x(1.90SWD+0.50FB) 1

8 Pr imary Clar ifier 11.0 ( ID) x 3.0 (SWD), or

SOR=1.0 cu.M / sq.M/ hour 1

9 Chemical House 12.0x7.50 x 5.00 1

10a Lime Solution Tanks 1.40x 1.40 x 2.00 (D)(WD=1.70) 2

10b Ferrous Sulphate Solution Tanks 1.40x 1.40 x 2.00 (D)(WD=1.70) 2

10c Polyelectrolyte Solut ion Tanks 1.10x 1.10 x 2.00 ( WD=1.70) 1

11 SBR Tanks (Biological Treatment)

HRT= 20 hours. Liquid Holding

Volume= 1689KL. Or 18.2 x 18.2 x 6.10 (WD= 5.10)

1

12 Filter Feed Water Storage Tank 6.0 x 5.30 x3.8 (3.2+0.6) 1

13 PSF (Pressure Sand Filters) Dia 2.1 x2.50(H, excl. dishes) 2

14 GACF (Gr. Act ivated Carbon Filters) Dia 2.4 x2.50(H, excl. dishes) 2

15

Wet Sludge Pump House (PH-3) - a) Sludge holding Tanks-

i)Excess Bio-sludge Tank i i)Wet Chemical Sludge Tank

b) Pumps Room

5.0x3.0x3.5 (2.5+1.0) 5.0x5.0x3.5 (2.5+1.0)

8.0x5.0x7.50 (3.5+ 4.0)

1 1

1

16 Housing for Turbo Blowers 10.0 x 6.0 x 4.0 1

17 PLC Room (Control Center ) 3.87 x 3.5.0 x 3.30 1

18 Server Room 3.50 x 3.27 x 3.30

19 a) Housing for Chlor inators 5.0 x 5.0 x 4.0 1

b) Shed for Chlor ine Tonners 5.0 x 5.0 x 4.0 1

20 RCC Platform and Foundations for

PSF and Act ivated carbon Filters 7.0 x 4.10x1.0

2

21 Staging / plat form at top of PSF and Act ivated Carbon filters.

6.0 x 2.7x4.0 1

26 Workshop –cum- store 6.0 x 3.5 x 4.0 1



S.

No.


L x B x D or H

Nos.

(Qty)

22 Fresh water Over Head Tank and Tube well with suitable

Submersible pump set

5.0KL, 10M staging 1

29 Panel Room-1 5.50x 5.50 x 4.0 1

30 Panel Room -2 5.50x 5.50 x 4.0 1

31 Air Compressors Housing-on Top of Equalizat ion Tank (par t to cover)

4.0 x 3.0 x 3.30 1

32 RCC Platform for VOLUTE dewater ing press and Centr ifuge

8.0 x 5.0 x 3.30 1

33 Dry Sludge Storage shed 14.0 x 3.0 x 3.30 1

ASSOCIATED OTHER WORKS

34 Storm water drains within CETP

area

330M (L)x 0.60x0.70 (avg.D) / As

per approved drawing

Lot

35 Boundary Wall sur rounding CETP

area

299M Length x 0.25 (W) x 2.00

Ht.

Lot

36

Finishing works, plinth protect ion,

pumps foundations of all pump

houses and buildings.

As per requirement

Lot

37

Misc. CC base, cover ing of pipe with

PCC, man holes, Valve chambers, Foundat ions for 2nos. DG sets.

-- do --- Lot

37

Connect ion chamber , inlet pipe lines to Pump house and out let

disposal channel w ithin CETP boundary

-- do --- Lot

38

Per ipheral RCC Road-complete

including approach roads to var ious units / tanks.

-- do ---

Lot

39 Rooms for Watchmen 5.0 x 4.0 x 3.50 1

40 Toilets in Plant area 3.50 x 3.50 x 3.50

41 Office building (Double Storey)- including Laboratory, Conf. & PLC

Rooms

Covered Area = 228 sq.M 1



Table- 8.2: CETP Units and Minimum recommended Sizes

1) All dimensions in Meters, Areas in Sq.M and Volume in cu.M. 2) For all Platforms, c/ c size, internal size and outer sizes are same.

Part-1: CETP Units - Calculation of Civil Quantities

S.

No

.

Unit Name Internal

Size

RCC- WALLS RCC- BASE /SLAB Earthwork /

Excavation

PCC Vol. Other Items-RCC Remark Total

RCC

(cu.M

)

Finishing

Works

L-B-D Av.Th

k.

Volum

e

L W Av.Th

k. Volum

e

L W D Volum

e

Are

a

Vol. Are

a

Av.Thk

Volum

e

Inter . Area

Exter . Area

1 Raw Effluent Intake & Screen Chamber , incl. staircase

6.0x3.20x5.0 0.35 32.57 8.35

5.55

0.3 13.9 9.35

6.55 4.7 287.84 46.343

4.63 6 0.25 1.5 RCC Staircase 47.97 115.6 19.8

2 Raw Effluent Tank- near intake

6.8x4.0x5.6 0.35 45.08 9.15

6.35

0.3 17.43 10.2

7.35 5.4 402.85 58.103

5.81 0 62.51 159.9 23

3 Pump Room - Pump House-1 7.0x 6.8x 10.0 0.35 55.83 9.35

9.15

0.45 38.5 10.4

10.15

5.5 577.79 85.553

8.56 60 0.3 18 RCC -Walls up to plinth level, raft & Slab, Columns, Beams, stairs, Pumps Foundn.

112.32 225 139.2

4 Platform for Submersible Pumps & Panel near Eqln. Tank

12.0x2.0x0.6 0.25 3.5 12 2 0.2 4.8 12 2 0.3 7.2 24 2.4 8.3 150 134.4

5 Elevated Rec./ Stil l ing Chamber

1.80 x 1.80 x2.0

0.25 4.1 2 2 0.3 1.2 4 2 1.5 12 9 0.9 10 Inc. Col. & Ftngs 15.3 20.6 15

6 Platform for Gr it dewater ing 2.5x2.5x1.0 0 0 3 3 0.9 8.1 9 0.9 11 0.25 2.75 BW & plaster 0 10.48 10

7 Equalization Tank (Circular ) 13.10 ( ID)x 5.6

0.3 70.69 14.3

14.3

0.3 48.16 15.3

15.3 2 367.52 160.52

16.05 19.57

0.18 3.5226 Per i. Projn. 122.368

415.19 210.38

8 Flash Mixing Tank -1 1.90x1.90x 2.40

0.25 5.16 3.15

3.15

0.3 2.98 4.15

4.15 0.75

12.92 9.92 0.99 6 0.25 1.5 Walkway 9.64 25.26 15

9 Flash Mixing Tank -2 1.90x1.90x2.40

0.25 5.16 3.15

3.15

0.3 2.98 4.15

4.15 0.75

12.92 9.92 0.99 6 0.25 1.5 Walkway 9.64 25.26 15

10 Flocculation Tank 2.40x2.40x2.40

0.35 9.07 4.7 4.7 0.3 6.63 5.7 5.7 0.75

24.37 22.1 2.21 3 0.25 0.75 Walkway 16.45 33.21 18

11 Lime Solution Tanks (2nos.) 1.40x1.40x2.0 0.2 5.12 2.1 1.85

0.25 1.94 0 0 9 0.25 2.25 Walkway / Platform and

Stairs

9.31 35.84 18

12 Ferrous Sul. Solution Tanks(2nos.)

1.40x1.40x2.0 0.2 5.12 2.1 1.85

0.25 1.94 0 0 7.06 35.84 18

13 Polyelectrolyte Solution Tank 1.10x1.10x2.0 0.2 2.16 1.85

1.85

0.25 0.86 0 0 1 4.02 12.62 8

14 Inlet, Pipe to SBR Tank 0.8x0.8x20.0 20 1.2 0.25 6 0 0.2 8.4 PCC around Pipe 6

15 Pr imary Clar ifier 11.0M ( ID)x3.0M

0.3 31.93 12.2

12.2

0.3 35.05 13.2

13.2 2 273.56 116.84

11.68 16.6 0.18 2.9885 Per i. Projn. 69.974 234.14

Central Shaft 1 0.25 4.91 2.15

2.15

0.3 1.09 3.15

3.15 1.5 11.68 3.6287

0.36 0 5.995 19.63

Valve Chamber 1.2x1.2x2 0.2 2.912 2.4 2.4 0.25 1.44 3.4 3.4 2.3 26.59 5.76 0.576 4.352 14.56

16 SBR Basins-2nos., Tanks, Platforms, Tie Beams, Columns (9nos), decanter suppor ts

10.0x9.75x6.1 0.45 226.74 12.5

12.2

0.4 121.51 14.5

14.2 3.5 1436.3 303.78

30.38 27.2 0.3 8.16 Platforms(W), beams, columns 0.4x0.4

356.41 358.52 140.42

1.0(W), 0.5x0.3

0.3 6.9 10 16.9 92

17 Excess Bio Sludge Tank 5.0x3.0x3.5 0.3 18.06 7.3 5.3 0.3 11.61 8.3 6.3 3 156.87 38.69 3.87 0 29.67 77.69 17.2



Table- 8.2: CETP Units and Minimum recommended Sizes

1) All dimensions in Meters, Areas in Sq.M and Volume in cu.M. 2) For all Platforms, c/ c size, internal size and outer sizes are same.

Part-1: CETP Units - Calculation of Civil Quantities

S.

No

.

Unit Name Internal

Size

RCC- WALLS RCC- BASE /SLAB Earthwork /

Excavation

PCC Vol. Other Items-RCC Remark Total

RCC

(cu.M

)

Finishing

Works

L-B-D Av.Th

k.

Volum

e

L W Av.Th

k. Volum

e

L W D Volum

e

Are

a

Vol. Are

a

Av.Thk

Volum

e

Inter . Area

Exter . Area

18 Filter Feed Water Storage Tank

6.0 x 5.30 x3.8

0.35 31.92 8.35

7.65

0.3 19.16 9.35

8.65 2.9 234.54 63.878

6.39 6.4 0.15 0.96 Incl. inner baffles 52.04325

127.08 24

19 Wet Chem. Sludge holding Tank (PH-3)

5.0x5.0x3.5 0.35 23.22 7.35

7.35

0.3 16.21 8.35

8.35 3 209.17 54.023

5.4 6 0.25 1.5 40.92575

94.96 21.4

20 Pump House for Wet Sludge 8.0x5.0x7.50 0.3 32.64 10.3

7.3 0.3 22.56 11.3

8.3 4 375.16 75.19 7.52 8 0.25 2 Stairs & P. Foundns.

57.197 108.8 130.56

21 RCC Platform / Foundns. for PSF

7.0 x 4.10x 1.0

7 4.1 0.75 21.53 8 5.1 0.9 36.72 28.7 14.35 21.525 28.7 22.2

22 RCC Platform / Foundns. for ACF

7.0 x 4.10x 1.0

7 4.1 0.75 21.53 8 5.1 0.9 36.72 28.7 14.35 21.525 28.7 22.2

23 RCC Platform / Foundns. for Volute/ Filter Press & centr ifuge

8.0 x 5.0x 3.30

8 5 0.5 20 7 1 7 beams, colns. 0.4x0.4

27 40 26

24 Platform, Foundns. for Subm. Pumps -Filter Feed Water Tank

6.0 x 2.4x 0.40

7 2 0.3 4.2 7 2 0.9 12.6 14 3.5 0.32 7 2.24 beams, colns. 0.4x0.4

6.44 14.4 6.72

25 Storm water drains within CETP area

0.60x0.70 (av.D)

0.15 84.34 330

0.9 0.15 44.55 330

1 0.9 297 297 29.7 330M length 128.8913

562.28

26 Grit removal Tank-Oil skimmer

4.30 Int. Dia 0.3 13 5.5 5.5 0.3 7.12 6.5 6.5 1.5 49.75 23.75 2.37 7.136

0.18 1.2844 Per ipheral Projection

21.41 64.49 43.33

Central Shaft 0.6 0.25 1.88 1.5 1.5 0.3 0.53 2.5 2.5 1.5 7.36 1.7663

0.18 0 2.41 7.54

Grit Pump sump 2.0x 2.0x2 0.25 5.85 3.25

3.25

0.25 2.64063 4.25

4.25 2.3 41.54 10.563

1.056 0 8.490625

23.4

Valve Chamber 1.2x1.2x2 0.2 2.912 2.4 2.4 0.25 1.44 3.4 3.4 2.3 26.59 5.76 0.576 0 4.352 14.56

Total of Quantities 730.77

499.49

4945.66

184.1

0 78.91

1306.4

0 3176.2

5 1097.8

1

Rate as Per BSR-2014 13200

13200

150

2350

11000

240 200

Amount (Rs. Lac) 96.46

65.93

7.42

4.33

8.68

7.62 2.20

Total cost Part -1 (Rs. Lac) 192.64



Part-2: BUILDINGS- on Plinth Area Rate (basis BSR-2014)

S.

No

.

Name / Description Internal Size Area Rate

(Rs./Sq.M)

Amount

(Rs. Lac)

1 Chemical House- CC & IPS Floor

14.0x 9.0 x 5.0 126.00 13120 16.53

2 Pump Room - Pump House-1

7.0 x6.8 x 8.0 47.60 13400 6.38

3 Housing for Turbo Blowers

10.0 x 6.0 x 4.0 60.00 13120 7.87

4 Housing for Chlor inators

5.0 x 5.0 x 4.0 25.00 12800 3.20

5 Shed for Chlor ine Tonner s

5.0 x 5.0 x 4.0 25.00 9000 2.25

6 Workshop –cum- store 6.0x3.50 x 4.0 21.00 13120 2.76

7 Panel Room-1 5.50x5.50 x 4.0 30.25 13120 3.97

8 Panel Room-2 5.50x5.50 x 4.0 30.25 13120 3.97

9 Air Compressors Housing

4.0x3.0 x3.3 12.00 12800 1.54

10 Dry Sludge Storage shed

14.0x 3.0x 3.30 42.00 9000 3.78

11 Room for Watchmen 5.00x 4.0x3.50 20.00 12800 2.56

12 Toilets in Plant area 3.50x3.5x3.50 12.25 14000 1.72

13

Office, Laboratory & PLC Room (Control Center ) - 2 storey Building

12.0x7.50x3.5 90.00 15000 13.50

(17.5+6)x6x3.3 141.00 15000 21.15

Total Cost of Part-2 91.18

Part-3: Based on Rate Analysis

S.N. Name / Description Brief Spec. Qty. Rate Amount

(Rs. Lac)

1 Boundary Wall surrounding CETP

area

0.25Thk. X

2.0Ht.

299 8000 23.92

2 Per ipheral RCC Road-complete

including approach roads to var ious

Buildings and Tanks

With WBM

base,

nominal

reinft .

1050 1600 16.80




Part-4: Based on Lump Sum Cost

S.

No.

Name / Description Size or

Area

Amount

(Rs. Lac)

Remark

1 Finishing works, plinth protection of all pump houses and buildings.

Lump sum 5.00 As per site,

2 Misc. CC base, cover ing of pipe with PCC, man holes, Valve chambers, Foundat ions for 2nos. DG sets.


3 Connect ion chamber , inlet pipe lines to Pump house and out let disposal channel w ithin CETP boundary.


4 Fresh water Over Head Tank &Tube well w ith Submersible pump set 5.0KL, 10.0M

staging

1.00 .

5 Staging/ Platform at top of PSF & ACF

6.0x2.70, 4.0M ht.

1.00


Abstract of Cost

S.No. Description Amount (Rs. Lac)

i Total Cost of Par t-1 192.64

ii Total Cost of Par t-2 91.18

iii Total Cost of Par t-3 40.72

iv Total Cost of Par t-4 12.00

Total Civil Cost 336.54



8.2 SPECIFICATION FOR MECHANICAL EQUIPMENTS AND WORKS

The pipes used shall be as follows:

Table–8.3 Pipe Details

S. No. Type of pipe Class

1. Ducti le Iron S&S K9

2. Cast Iron S&S AB ( for grouted / bur ied under Concrete)

3. Cast Iron Flanged B

4. Rigid PVC 10 Kg f/ sq.cm

5. GI Heavy duty-class B

6. Stainless Steel Medium class

7. RCC Pipe S&S NP3

PIPE FITTINGS

Fitt ings above 80 NB shall be DI as per relevant specificat ions in IS/ BS conforming. The

puddle collars embedded in the wall shall be of DI. If flanged cast iron pipes and specials shall be used in the pump houses and to the limit of both suct ion and delivery pipelines they shall be manufactured and tested according to IS

1536 and 1537 respect ively & Flanges shall conform to IS 1538.

NOTES ON EQUIPMENT MATERIALS

1) Mater ials thickness, where ever not mentioned, shall be sufficient to w ithstand against the loads including allowance for corrosion, wear & tear .

2) Makes of all fabr icated and bought out equipments including major components, shall be as per List of suggested Vendors / makes.

3) Specificat ions given below are indicative to specify the equipment requirement and their quant it ies. Accessor ies for completeness and required operational per formance are understood to be included.

Table-8.4 Mechanical Items Details



S.

No.

Equipment Name Specifications Quantity

1

Coarse Screen For inlet / intake chamber of Pump House-1

Mechanically cleaned. Screenings to be brought up to tank top level using mechanical conveyor . MC: SS flats 40 x 4 mm Clear Spacing 30mm. Angle 600 with hor izontal Size: As per process design.

1no. (one)

2 Medium Screens Manual cleaned. MC: SS flats 30 x 3mm.Clear Spacing =20mm. Angle 600 with hor izontal. Size: As per process design.

1no. (one)

3 Pumps for untreated effluent Transfer from Pump House-1 and Pump House-2.

Type: Centr ifugal, Hor izontal, Flooded Suct ion. Mater ial of Construction: C.I. Casing, SS impeller , SS Shaft , MS Base plate/ Frame. Capacity: 90 M3/ hour . Head: 15M of Water . Motor HP – to be confirmed by manufacturer .

2nos. ( two)

4 Pumps for untreated effluent Transfer from Pump House-1 and Pump House-2

Type: Centr ifugal, Hor izontal, Flooded Suct ion. Mater ial of Construction: C.I. Casing, SS impeller , SS Shaft , MS Base plate/ Frame. Capacity: 45 M3/ hour . Head: 15M of Water . Motor HP – to be confirmed by manufacturer .

4nos. (Four)

5 Pumps for RAS (Return Act ivated Sludge) Transfer ( for extended ASP)

Type: Centr ifugal, Ver t ical, Submerged. Mater ial of Construction: C.I. Casing, SS Impeller , SS Shaft , MS Base plate / Frame. Capacity: 65m3/ Hour. Head: 14M of Water . Motor HP –to be confirmed by manufacturer .

2nos. ( two)

6.1 Centr ifugal Pumps for chemical sludge slur ry Transfer from Pump House

Type: Centr ifugal, Hor izontal, Flooded Suct ion, SP ser ies pumps. Mater ial of Construct ion: C.I. Casing, SS impeller , SS Shaft , MS Base plate/ Frame. Capacity: 5.0 M3/ hour and Head: 30 to 35 M of Water . Sp. Gravity of liquid= 1.08. Motor HP –to be confirmed by manufacturer .

2nos. ( two)

6.2 Screw Pumps for chemical sludge slur ry from Pump House

Type: Screw/ Progressive cavity, Horizontal, Flooded Suct ion, fi lter press pump. Mater ial of Construct ion: C.I. Casing, SS screw, MS Base plate/ Frame. Capacity: 2 to 3 M3/ hour . Head: 45M of Water . Sp. Gravity of liquid= 1.08. Motor HP –to be confirmed by manufacturer .

2nos. ( two)



S.

No.


7 Pumps for Fi ltr at ion Pump House to PSF and ACF

Type: Centr ifugal, Hor izontal, Suct ion 3.50 meters. Mater ial of Construction: C.I. Casing, SS impeller and Shaft , MS Base Frame. Capacity: 1no. @90m3/ Hour. & 2nos. @45 m3/ Hour . Total Head= 30.0 M. Motor HP –to be confirmed by manufacturer .

Total 3nos.

(three)

8

Oil/ grease skimmer-cum-Gr it Removal scraper

Type: Mechanical Scraper as clar ifier . Tank Size- Internal Dia. 4.30M x3.0M SWD. Mater ial of Constr .: SS blades and rake arms. Under water par ts SS. Bridge- MS, sand blasted Epoxy painted. Sp. Gravity of mater ial (gr it) = 2.60. Complete with dr ive, Oil skimmer and trough.

1no. (one)

9

AGITATORS / MIXERS for Flash Mixer Tanks

MC: SS-316 Impeller & shaft. Tank Size: As per Table -Unit Sizes. Turbine type, 4 blades, detachable Impeller . Impeller dia. =0.5M approx. Final RPM= 100approx. HP=2 or as recom. By manufacturer . Complete including coupling, MS base Frame. MC: SS-316 impeller & shaft .

2nos. ( two)

10

PADDLE TYPE FLOCULATORS For Flocculation Tanks.

Tank Size: As per Table -Unit Sizes. V-shaped Paddle type, Detachable Impeller . Impeller dia= 1.80M approx. Shaft bottom suppor ted on bush. Final RPM = 15 approx. HP = 2 or as recom. By Mfr . Complete-Coupling, MS Base Frame.

1no. (one)

11

AGITATORS / MIXERS for Lime Solution Tanks and F. Sul. / Ferr ic Alum Solut ion Tank

MC: SS-316 Impeller &shaft . Tank Size: As per Table -Unit Sizes. Propeller type, Detachable Impeller . Final RPM= 100 approx. HP = as recom. By Manufacturer . Complete-Coupling, MS Base Frame.

4 no’s ( four)

12

AGITATOR / MIXER For Polyelectrolyte Solution.

MC: SS-316 Impeller & shaft. Tank Size: As per Table -Unit Sizes. Propeller type, Detachable Impeller . Final RPM= 100 approx. HP = as recom. By Manufacturer . Complete-Coupling, MS Base Frame.

1no. (one)

13 .1 Dosing Pumps for F S / Ferr ic Alum and Lime Solut ion

Discharge range = 250 to 750LPH each Head = 30 Meters of Water Type: meter ing. MoC: SS-316 Motor HP as recommended by manufacturer . Complete with Base Frame.

4 ( four)



S.

No.


13.2 Dosing Pumps for PE (Polyelectrolyte) Solution

Discharge range = 200 to 500LPH each Head = 30 Meters of Water Type: meter ing. MOC: SS-316 Motor HP as recommended by manufacturer . Complete with Base Frame.

2 ( two)

14 Mechanical Scraper for Pr imary Clar ifier

Clar ifier , size- As per Table -Unit Sizes. MOC – Water immersed par ts and scraper shall be of SS-304. Br idge MS, sand blasted, Epoxy painted. All par ts should be Epoxy Painted after sand blasting and pr imer applicat ion. Per ipheral/ Central Dr ive system. Inner baffle chamber- 2.30M (D) x 1.20M (H). Motor HP as per manufacturer . Motor w ith speed reduct ion gear box to get final RPH~ 3. Scraper base Slope = 1:10 towards centre. MS br idge 1000mm wide, rai ling 1000mm (H), 40mm dia. class B, GI/ MS pipe. Br idge should have MS grat ings of 12x12mm. Moving scraper arms fit ted with blades, neoprene rubber Squeegee pads. With over load alarm device and on/ off remote push button switch.

1 Set

15 Turbo Air Blowers for Air supply

High Speed Centr ifugal Turbo Blowers capacity: 1500 M3/ hour at delivery air pressure head 6.50M of water column. TEFC Motor - HP (75 approx.) and RPM (25000 approx) as per manufacturer . Complete with accessor ies- noise silencer and Acoustics (noise control) enclosure.

2 no’s

(1W +1 SB)

16 Air Diffusers and Air supply gr id

Tubular , dia. = 90mm (minimum). Length=1.0M (minimum). PU/ Silicon membrane, w ith SS feed pipe and SS clamps. Air supply grid- of suitable dia., maximum velocity of air 18m/ sec. Pipe Mater ials shall be-

i) From top of tanks / freeboard to inlet for diffusers- SS304.

i i) Gr id for air diffusers – CPVC / SS-304.

Qty. to match

air supply =1600

cum/ hr .



S.

No.


17 .1

Fi lter Press For Chemical sludge dewater ing

Filter Press: Size: 36” x 36” w ith 35 plates including end plates. Center feed. Operation- Hydraulic for 2nos and Manual for 1no. MOC: PP plates, End plates- CI, MS Beam and suppor t frame, CI gears, MS shaft . Polyester fi lter cloth with spare 2 sets. Outlets: 25mm Dia. and fi ltr ate channel. Dewatered cake thick 50mm.

3nos. (2+1)

17.2 Centr ifuge/ VOLUTE press for sludge dewater ing

Capacity =10 KL / hr . Feed sludge concentration =8.0 g/ L. Complete with motor , piping, flocculator and feed tank.

1no.

18 Air Compressors for Equalizat ion Tank.

Reservoir volume = 300 Liters approx. PVC Per forated pipe line at base/ floor in Equalizat ion tank. Operating Pr . Range= 7 to 9 kg/ cm2. TEFC motor w ith IP 55 Protection, 3-Phase, 415V, Motor HP= 15. Complete with Main GI pipeline, Ball valves, Pressure Gauge, Noise si lencer , Belt guard, FRP/ GI cover over motor .

1 (one)

19 Air Blowers for Chemical Mixing Tanks ( in Chemical house)

Twin Lobe Rotary Type. Blower Capacity: 100M3/ Hr . Air Pressure = 4.0M of water column. Blower RPM = 1200 approx. TEFC Motor = 5HP, RPM 1450. Complete with accessor ies- noise silencer , Belt Dr ive with Guard.

1 (one)

20 Chlor inators with Tonners

On-line dosing (1.0 kg/ hr .) w ith instrumentat ion for dosing display and control.

2 (two) sets

21 .1 EOT, Chain Pulley 1.0 MT. Manual operated for pumps, motors and sluice gate lift ing.

7nos (seven)

21.2 EOT, Chain Pulley 3.0 MT Electr ically operated for centr ifuge/ VOLUTE press lift ing.

1 (one)

22 Piping, valves, fit t ings

As per approved drawings. MOC- C.I., MS, G.I. and similar –class B. DI pipes- K9. HDPE, CPVC, PVC and similar - Heavy duty/ Pr . Class 10kg/ cm2

Lot

23 Centr ifugal pumps for dewater ing pits

Centr ifugal, ver tical, motor coupled, flooded suct ion. MOC: C.I. Casing and impeller , CS Shaft , Capacity: 5.0 M3/ Hr . Head: 15.0M. TEFC Motor , 3-Phase, IP-55, 415V. HP= 3.0 or as recom. By manufacturer . Complete with cable.

6 nos. (5W+1S)



S.

No.


24 V-notch MOC- 3mm thick SS-304 sheet fit ted in SS frame. Opening (V) Size=700x350mm.Central angle=90o. Calibrated and embossed flow depth (cm) and flow rate (cu.m/ hr .)

1 no.

25 PSF (Pressure Sand Filters)

Size: Dia. 2.10M x2.50M (H, excl. dishes) . Other Specifications same as GACF, except Act ivated Carbon layer .

2 nos. ( two)

26 GACF (Granular Activated Carbon Filters)

Type of Fi lters – Ver tical w ith Cylindr ical Cell and Ellipt ical dish ends. Size: Dia. 2.4 x2.50 (H, excl. dishes) . Operation = cont inuous (24 hours / day). Working Pressure= 3.0 to 1.25 kg / cm2. Residual Head before Regen=1.0kg / cm2 Air Scour ing inlet =100mm NB Mater ials of Construct ion – Casing /shell – 8mm thick MS sheet, inside rubber lined, outside epoxy paint over pr imer. Top & bottom Dishes – 10 mm thick MS sheet, inside rubber lined, outside epoxy paint over pr imer. Strainers- PVC. Filter Media Details- Silica sand, pebbles, gravels as per approved drawing. Mater ial depth =0.90 M approx. Granular Act. Carbon (GAC)- Coconut shell, depth 600-650 mm.

2 nos. ( two)

The Turbo blowers are energy efficient, have negligible noise compared to other blowers. Hence, for ASP, only Turbo Blowers shall be provided.



8.3 SPECIFICATION FOR ELECTRICAL & INSTRUMENTATION WORKS

8.3.1 Automatic Power Factor Control Panel

The Automatic Power Factor Control of Suitable KVAR capacity suitable for automatic operation and control of Power Factor within the set limits, free standing floor mounting

type made out of 2mm CRCA Sheet steel powder coated with channel ir on base frame suitable for operation on 3-phase, 4 wire, 50 Hz equipped with the following: -

Incomer

Suitable sets equipped with 250 A MCCB, PF meter , APFC Relay suitable for sequent ial operation of all capacitor banks.

Outgoing

- Suitable sets of 32A 415V power contactors with fuses.

- Suitable sets of 63A 415 V power contactor w ith fuses.

- Capacitors Banks as per design & requirement of power Supply Company. -LT Panel capacitor Banks shall be mounted in the separate LT Panel Board.

Diesel Generating Set

D.G set of capacity to meet 100% (full load) requirement including all ancillary equipment

such as base frame, coupling, coupling guard, control panel and exhaust piping system etc. including electr ic w ir ing between control panel and start ing batter ies.

8.3.2 Electrical Panel

A separate panel (bay) should be provided for individual pump house. The control panel shall be made up of 2mm sheet steel w ith 7/ 9 tank process powder coating for long life.

The control panel should contain ACB/ MCCB (as per design requirement) of suitable rat ing contacts relays of reputed make.

GENERAL SPECIFICATIONS FOR ELECTRICAL PANELS

There shall be separate Power panels for each pump house, chemical house and blowers etc.

Power panels shall contain Incomer , MCCB, Bus bars, SFU, Relays, Online Indicators, ON/ OFF Rotary switches, Star ters (DOL star ter up to 10 HP and Star -Delta Star ters above 10 HP load) and Spares of suitable capacit ies and adequate in numbers.

Proper ear thling systems/ ear th pits shall be provided wherever required. Each equipment shall be provided with push button station for local ON/ OFF.



Panels shall be indoor type, metal clad, floor mounted, free standing, totally enclosed, extensible type, air insulated, cubicle type for use on 415 Volts, 3 phase, 50 cycles system with a fault level w ithstand of 31 MVA/ 35 MVA RMS.

Panels shall be designed to conform to the requirements of conform to the relevant IS specificat ions and shall be provided with required hardware such as control cabling, contactors, and spares.

The structure shall be mounted on a MS Channel of required size. The design shall ensure that the weight of the components is adequately suppor ted without deformation or loss of alignment dur ing transit or dur ing operat ions.

Panel’s doors and covers shall be of minimum 2 mm thick sheet steel. Sheet steel shrouds and par ti tions shall be of minimum 2mm thickness. All sheet panels shall be smoothly finished, leveled and free from flaws. The corners should be rounded.

The apparatus and circuits in the power control centers shall be so arranged as to faci litate their operation and maintenance and at the same t ime to ensure the necessary degree of safety.

All doors/ covers providing access to live power equipment/ circuits shall be provided with toll operated fasteners to prevent unauthor ized access.

Provision shall also be made for permanent ly ear thing the frames and other metal par ts of the switchgear .

Specificat ions as per relevant BIS codes shall apply. There shall be separate Power panels for each pump house, chemical house and

blowers etc. Power panels shall contain Incomer , MCCB, Bus bars, SFU, Relays, Online Indicators,

ON/ OFF Rotary switches, Star ters (DOL star ter up to 10 HP and Star -Delta Star ters above 10 HP load) and Spares of suitable capacit ies and adequate in numbers.

Proper ear thing systems/ ear th pits shall be provided wherever required. Each equipment shall be provided with push button station for local ON/ OFF

operation. The following protect ions should be provided in the panel board:-

Over load protection Short circuit protect ion Earth fault protect ion Shunt tr ip & under voltage protection.

OPERATIONAL REQUIREMENT/INTERLINKING OF ELECTRICAL PANEL AND

INSTRUMENTATION

The biological t reatment process (extended ASP) shall be PLC controlled through SCADA.

All MC panels shall have provision of Change –over Switches for operat ion of 100% equipment through CAPTIVE (DG) Power .

All MCC panels shall have provision of Change –over Switches for operat ion of 100% equipment through CAPTIVE Power (DG set ) for each module.



1. Effluent Transfer Pumps in Pump House-1 (PH-1) :

a) Each Pump for independent operation manual/ automatic modes. b) Level sensor in Wet Well w ith Alarm system, when TWL (or Water Depth) reaches 2500 mm above the Base floor .

2. Pumps in Pump House-2 (PH-2) : Each Pump for independent operation manual/ automatic modes.

3. RAS Transfer Pumps: Each pump for automatic operation/ manual modes. 4. Pumps in Wet Sludge Pump House -3 (PH-3) : Each Pump for independent operat ion

MANUAL modes. 5. Flash mixer Agitators and Flocculat ion Paddle Mixers: - to be inter locked with

Chemical dosing pumps for synchronous operation. 6. Chemical Solution Tanks Agitators and Air Blowers: Independent and Separate

control. 7. Air blowers and all other Equipments: For independent and Separate control for

each Aerat ion Tank. 8. Pumps in Filtrat ion Pump House -4 (PH-4): Each Pump for independent operat ion

manual modes.

The level controllers of Pump Houses shall be connected to MC panel in such a manner that pump (which was running) star ts operat ing when water level reaches at the upper ON

level and stops when water level reaches at the Lower OFF level in Effluent tank. The level controllers of Raw Effluent Pump House-1 shall be connected to panel in such a

manner that third pump ( first standby) star ts operat ing when water level reaches above

the normal TWL level in the wet well.



8.4 INSTRUMENTATION

8.4.1 The Aeration System Shall Be PLC Controlled For Automatic Operation

Through SCADA.

a) ULTRASONIC FLOW METER &TOTALIZER

Compact on-line ultrasonic flow conver ter directly mounted on the ultrasonic

flow sensor .

Input: Effluent of pressure sand fi lters and Activated carbon fi lters having solid par ticle content <2%, gas content <1% (by volume) and TSS less than 100mg/ L. Pipe dia. 300mm to 500mm.

Output required:

Measurement funct ionality: Digital display of Flow rate and Total volume. Measur ing range: Flow= 0 to 700 cu.m/ hour . Measur ing error (under site conditions): Not to exceed ± 1.0% of value

b) ON-LINE pH METER

Compact weather proof and temper - proof on-line probe with Digital display.

Input: Effluent of pressure sand fi lters and Activated carbon fi lters having

Solid par ticle content < 2%, gas content < 1% (by volume) and TSS less than 100mg/ L.

pH range 5.0 to 11.0

Output required:

Measurement funct ionality: on-line pH value.

Measur ing range = 5.0 to 11.0.

Perm. Error (under site condit ions) : Not to exceed ± 2.0% of measured value.

c) On Line Water Quality Monitoring at Common Effluent Treatment Plant

(CETP)

List of Effluent Water Parameter Monitor ing at each process stages at CETP

A) At inlet pH, Flow, BOD, COD, Total Suspended Solids (TSS)

Universal Mult i Controller w ith Display Unit



Wireless Remote Data Logger for Transmit ting Data Using GSM/ GPRS

B) Aeration Basins Dissolved Oxygen measurement and Luminescent display for each Tank

Nitrate Sensor w ith spectro-photometry pr inciple.

Universal Mult i Controller

Wireless Remote Data Logger for Transmit ting Data Using GSM/ GPRS

C) Third Point at filters / final out let – BOD,COD, Nitrate, Total Suspended Solids (TSS), TDS With self-cleaning Universal Multi Controller

Wireless Remote Data logger for Transmitt ing Data Using GSM/ GPRS

8.4.2 Online Real Time CETP Water Quality Monitoring

As per CPCB guidelines Real Time CETP Water Quality Monitor ing & Central

Network shall be installed for parameters viz. pH, TSS, temperature, Biochemical Oxygen demand (BOD), Chemical Oxygen Demand, Nitrate, and DO. Chlor ine and

Flow with remote as well as local display in control room. The wireless connect ion shall be prefer red for control room display.

The Water Monitor ing Stations shall provide real time data through GSM/ GPRS network at scheduled intervals automatically or as and when requested by the

users.



8.5 ELECTRICAL LOAD

Estimated Electr ical Load of CETP Equipment for Estimate purposes

Table-8.5 Electrical Load Sheet

S.

No. Equipment/ Drive Name Nos. KW of

each

Total

KW

Running

KW

1 Centr ifugal Pumps (90 m3/ Hr), in Pump Houses PH-1 & PH-2

2 7.5 15.00 7.5

2 Centr ifugal Pumps (45 m3/ Hr), in Pump Houses PH-1 & PH-2

4 3.75 15.00 0

3 Centr ifugal Pumps (65 m3/ Hr), in RAS Pump House

2 3.75 7.50 3.75

4 Pit Dewater ing Pumps, centr i., 5m3/ Hr 7 1.5 10.50 3

5 Centr ifugal Pumps (90 m3/ Hr) , in Pump House PH-4.

1 7.5 7.50 7.5

6 Centr ifugal Pumps (45 m3/ Hr m3/ Hr), in Pump House PH-4.

2 3.75 7.50 0

7 Gr it removal devices, oi l skimmers 1 2.2 2.20 2.2

8 Air Compressors 1 3.75 3.75 3.75

9 EOT hoists 6 1.1 6.60 1.1

10 EOT hoists 1 2.2 2.20 2.2

11 Agitator - Lime Dosing Tank 2 1.1 2.20 1.1

12 Agitator - F. S. / F.A. Dosing Tank 2 1.1 2.20 1.1

13 Agitator - Poly Electrolyte Dosing Tank 1 0.75 0.75 0.75

14 Mixer - Flash Mixer Tank-1&2 2 1.5 3.00 3

15 Rotary Air Blowers for Chem. House 1 3.7 3.70 0

16 Mixer for Flocculat ion Chamber 1 1.5 1.50 1.5

17 Dosing Pumps for Lime Solut ion 2 1.1 2.20 1.1

18 Dosing Pumps For Fer .Sul./ F.A. Solu. 2 1.1 2.20 1.1

19 Dosing Pump For P E Solution 2 0.75 1.50 0.75

20 Pr imary Clar ifier Mechanism 1 1.5 1.50 1.5

21 Turbo Air Blowers for Aeration Tanks 2 75 150.00 75

22 Sludge Feed Centr ifugal Pumps for PH-3 2 3.75 7.50 3.75

23 Sludge Feed Screw Pump to Filter Press for PH-3

2 3.75 7.50 3.75

24 Service Water Pump, Submersible, 5m3/ hr 1 3.75 3.75 3.75

25 Tube well Pump (Submersible) 1 3.75 3.75 0



S.

No. Equipment/ Drive Name Nos. KW of

each

Total

KW

Running

KW

26 Centr ifugal Pumps for reuse of Treated effluent in Chem. House

2 2.2 4.40 2.2

27 Instrumentat ion 1 5 5.00 5

28 Centr ifugal Pumps for biological sludge from wet Sludge Pump House. 2

3.75 7.50 3.75

29 Centr ifugal Pumps for chemical sludge from Sludge Pump House. 2

3.75 7.50 3.75

30 Screw Pumps 2 3.37 6.74 3.37

31 Filter Press with Hydraulic system 1 1.5 1.50 1.5

32 Centr ifuge for bio-sludge dewater ing 1 15.0 15.00 15.00

33 Twin Lobe Rotary Blowers for Chem. Mixing Tanks and bio-sludge sump 2

3.75 7.50 7.50

34 Miscellaneous- office, lab, workshop, street Lighting etc.

1 20 20.00 15

Total 346.14 186.22

Approximate proposed Installed load = 346.14 KW

Approximate proposed Running load = 186.22KW

*********



CHAPTER - 11

ENVIRONMENTAL MANAGEMENT PLAN

11.1. ENVIRONMENTAL MANAGEMENT PLAN (EMP)

Preparat ion of environmental management plan is required for formulation,

implementat ion and monitor ing of environmental protection measures dur ing and after commissioning of projects. The plans should indicate the detai ls as to how var ious

measures have been or are proposed to be taken including cost components as may be required. Cost of measures for environmental safeguards should be treated as an integral

component of the project cost and environmental aspects should be taken into account at var ious stages of the projects:

Conceptualizat ion: preliminary environmental assessment Planning: detailed studies of environmental impacts and design of safeguards

Execution: implementation of environmental safety measures Operation: monitor ing of effectiveness of built -in safeguards

The management plans should be necessar i ly based on considerations of resource conservation and pollut ion abatement. Some of which are:

1. Liquid Effluents

Effluents from the industr ial area should be treated well to the standards as

prescr ibed by the Central/ State Water Pollut ion Control Boards.

Deep well bur ial of toxic effluents should not be resor ted to as it can result in re-sur facing and ground water contaminat ion. Re-sur facing has been known to cause extensive damage to crop and livestock.

In all cases, effor ts should be made for re-use of water and its conservation.

2. Air Pollution

The emission levels of pollutants from different stack should conform to the

pollut ion control standards prescr ibed by Central or State Boards. Adequate control equipment should be installed for minimizing the emission of

pollutants from the var ious stacks. In-plant control measures should be taken to contain the fugit ive emissions.

Infrastructural facilit ies should be provided for monitor ing the stack emissions and

measur ing the ambient air quality including micro-meteorological data (wherever required) in the area.



Proper stack height as prescr ibed by the Central/ State Pollution Control Boards should be provided for better dispersion of pollutants over a wider area to minimise

the effect of pollut ion. Community buildings and townships should be built up-wind of plant w ith one-half

to one ki lometer greenbelt in addition to physiographical barr ier .

3. Solid Wastes

The site for waste disposal should be checked to ver ify permeabili ty so that no

contaminants percolate into the ground water or r iver/ lake. Waste disposal areas should be planned down-wind of vi llages and townships.

React ive mater ials should be disposed of by immobilizing the react ive materials

w ith suitable additives. The pattern of fi lling disposal site should be planned to create better landscape and

be approved by appropr iate agency and the appropr iately pretreated solid wastes should be disposed according to the approved plan.

Intensive programs of tree plantat ion on disposal areas should be under taken.

4. Noise and Vibration

Adequate measures should be taken for control of noise and vibrat ions in the industry.

5. Occupational Safety and Health

Proper precaut ionary measures for adopt ing occupat ional safety and health

standards should be taken.

6. Prevention, maintenance and operation of Environment Control Systems

Adequate safety precaut ions should be taken dur ing preventive maintenance and

shut down of the control systems. A system of inter -locking with the product ion equipment should be implemented

where highly toxic compounds are involved.

7. House – Keeping

Proper house-keeping and cleanliness should be maintained both inside and outside

of the industry.



8. Human Settlements

Resident ial colonies should be located away from the solid and liquid waste

dumping areas. Meteorological and environmental condit ions should be studied

proper ly before selecting the site for residential areas in order to avoid air pollut ion problems.

9. Transport Systems

Proper parking places should be provided for the trucks and other vehicles by the

industr ies to avoid any congestion or blocking of roads. Sit ting of industr ies on the highways should be avoided as it may add to more road

accidents because of substant ial increase in the movements of heavy vehicles and unauthor ized shops and sett lements coming up around the industr ial complex.

Spillage of chemicals/ substances on roads inside the plant may lead to accidents.

Proper road safety signs both inside and outside the plant should be displayed for avoiding road accidents.

10. Recovery - reuse of waste products

Effor ts should be made to recycle or recover the waste mater ials to the extent possible. The treated liquid effluents can be convenient ly and safely used for

ir r igation of lands, plants and fields for growing non-edible crops.

11. Vegetal Cover

Industr ies should plant trees and ensure vegetal cover in their premises. This is

par t icular ly advisable for those industr ies having more than 10 acres of land.

12. Disaster Planning

Proper disaster planning should be done to meet any emergency situation ar ising

due to fire, explosion, sudden leakage of gas etc. Firefighting equipment and other safety appliances should be kept ready for use dur ing disaster/ emergency situat ion

including natural calamities like ear thquake/ flood.

13. Environment Management Cell

Each industry should ident ify within i ts setup a Depar tment/ Sect ion/ Cell w ith

trained personnel to take up the model responsibi li ty of environmental management as required for planning and implementation of the projects.



11.2. ENVIRONMENTAL MANAGEMENT DURING OPERATION OF CETP

The common effluent treatment faci li ty w ill compr ise of following stages

Pr imary Treatment

Physico-Chemical Treatment

Biological Treatment Ter t iary Treatment (Disinfection using Chlor ination and Filt ration) .

On line monitor ing system for var ious parameters such as pH, TOC and DO is provided.

However , for smooth operat ion and to achieve the treated effluent quality, regular

monitor ing of the plant is very much required. The samples from different stages of t reatment should be collected and analyzed as per details given in the table. Samples will

be analyzed in the CETP laboratory & record will be maintained in the Log-book.



LIST OF PARAMETERS & SAMPLING POINTS LOCATION.

D=Daily. M= Monthly. Al l parameters in mg/ l except pH, temperature & SVI

Sampling Point Equalization

Tank

Primary

Clarifier

Outlet

Aeration /

SBR Tank

Secondary

Clarifier

Outlet

Pre-filtration

Water

Storage Tank

Final

Treated

Effluent for

Disposal

Tube well-

Fresh Water

samples for

HHSEHS

Parameter

Oil & Grease Thrice/ week Thr ice/ week Thr ice/ w eek Once/ week

pH D D D D D D Once/ week

Temperature D D D D D D Once/ week

COD D D D D M

BOD Twice/ week Twice/ week Twice/ week Twice/ week Twice/ week Once/ week M

TSS D D D Twice/ week D M

NH3-N Once/ week Once/ Month Once/ Month Once/ week M

Total-P Once/ week Once/ Month Once/ Month Once/ week M

SVI Thr ice/ week


SMS Envocare Limited Page 84of Chapter 1

In addition to environmental monitoring plan for the CETP, for successful operation and maintenance of CETP it is very essent ial that CETP receives waste water which is w ithin the

parameters selected for design of CETP. In order to control the inlet parameters of CETP it is very essent ial for the regular monitor ing of industr ies discharging into CETP. It is also

essential to carry out regular sampling, surpr ise sampling of discharge waste water from each member industr ies on 24 hours basis.

If industr ies are found discharging more than the specified inlet parameters of CETP, it

must be brought to notice of industry and they should be given notice for controlling their outlet parameters. On repeated occurrence of such incidence they should be disconnected

t ill compliance is achieved. This clause must be added in the membership agreement w ith

the CETP.

*****



CHAPTER -12

CONCLUSION

12.1. ENVIRONMENT MANAGEMENT PLAN & CONCLUSION

It is evident from the study finding that the effluent generated from the industr ial

estate/ area is highly polluted and it is not fi t for direct discharge on land or sur face water . There is no wastewater treatment plant at the individual industry level. Since the industr ies are small and medium scale, they cannot afford to have cost effective Effluent

Treatment Plant (ETP) to meet the discharge standard st ipulated by the Bihar State Pollut ion Control Board. Therefore, i t is very much essential to set up a Common Effluent

Treatment Plant (CETP) to treat the wastewater generated from all the industr ies in the industr ial area in a cost effective way. There is no dedicated sewerage line for the conveyance of domestic wastewater which would be treated along with the city domest ic

wastewater in the terminal Sewage Treatment Plant (STP). Therefore, i t is proposed to treat domest ic as well as Trade Effluent in the proposed CETP.

The storm water dur ing the rainy season creates water logging in the industr ial area due to

absence of storm water drainage system. The storm water gets mixed with the hazardous and solid waste generated from the industr ies which are being disposed nearby the

boundary of the industr ies. There is no proper collect ion of Solid and Hazardous waste generated from the industr ies. Due to poor Hazardous and Solid Waste Management an addit ional highly polluted wastewater stream generated dur ing the rainy season which are

harmful to the soil as well as ground water and sur face water . Therefore, there is a need of proper collect ion and treatment of Solid and Hazardous waste from the industr ial area.

Since there is no Common Hazardous Waste Treatment Storage Disposal Facili ty (TSDF) exists in Bihar , it is suggested to have TSDF facili ty for proper Handling of Hazardous

Waste as per Hazardous Waste Management & Handling Rules of CPCB. Also it is very impor tant to have separate proper storm water drainage system in the industr ial area. As per discussion with BIADA, they are already in process to construct Drainage Facili ty in the

Industr ial Area.

The treated effluent from the recommended Common Effluent Treatment Plant (CETP) shall be par t ially used for hor t iculture, chemical solution preparation in the CETP itself, for

construct ion of the Civil works in the nearby locality ( those who opt to collect from the CETP), par tially for Automobile service station and water ing on the road side to reduce the fresh water consumption and sustainabili ty of the environment. The residual part shall be

disposed in the nearby drain which will ult imately meet to the r iver .



The type of industry to be allowed in future in the vacant or cancelled plot has been discussed in the Repor t so that the quantity of wastewater would not be exceed the

recommended capacity of the CETP. The change in the production or expansion in the existing product ion capacity by the individual industry would be only allowed after due

consent from the BIADA.

The Capital Expenditure for sett ing up of the CETP would be shared by Central Government, State Government, and Entrepreneur of the industr ial area. The operat ing

expenses would be borne by the Entrepreneur based on shar ing of quantum of flow and pollut ion load generated from the individual industry.

As per the EIA notificat ion 2006 from Ministry of Environment & Forests, setting up of

CETP in the designated Industr ial Area requires Environmental Clearance under Category

“B”. Therefore there is a need to obtain Environmental Clearance from State Level Environment Impact Assessment Author ity (SEIAA)/ Bihar State Pollut ion Control Board.

For this, the detai led study is required for Environment Impact Assessment (EIA) .

*****

Workshop-cum-store

109171

121950

73000

R O A D S I D E

N A L L A H S I D E

INTAKE

Elev. Rec.

Chamber

Oil & G

rit

Removal Tank

Platform for

Grit

Dewatering

Raw

WW

Tan

k7000

Equalization

Tank

4000

7000

6800

1800

6000

Grit Pum

pSum

p

2500

2000

Pum

pR

oom

3200

Flash MixingTanks-1&2

Floc.Tank

2400

Chemical

House

140009000

S.B.R.Tank-1

Primary

Clarifier

Wet

Sludge

Pumps

Room

10000

19500

5000

Excess

Bio-Sludge

Tank

3000

5000

S.B.R.Tank-1

8000

5000

5000

PanelRoom-1

5500

5500

Dry Sludge Storage Shed

14000

3000

Wet

Chem.

Sludge

Tank

Filter Feed

Water Tank

Housing

for Turbo

Blowers

(Gr. Floor)

6000

10000

8200

6000

56007000

PLC Room &

Office (2 storey)

Pla

tform

for

Pum

ps L

ifting

A.C. F.

Pr. S. F.

5500

5500

Panel

Room-2

(Gr. Floor)

2400

Housing for

ChlorinatorsShed for

Chlorine

Tonners5000

5000

50005000

PF fo

rPum

ps

Treated

Effluent

Storage

Tank

GATE

Pan

el

6000 3500

3920

BIHAR INDUSTRIAL AREA DEVELOPMENT AUTHORITY

(BIADA)

5

MK AS K.KAS

ROAD ALIGNMENT & WIDTH MAY CHANGE AS PER SITE REQUIREMENT.

FINISH ROAD LEVEL AT 100.00M.

MK AS K.KAS

SMS ENVOCARE LIMITED

COMMON EFFLUENT TREATMENT PLANT (C.E.T.P)

SIZE OF UNITS SHALL BE AS MENTIONED IN TABLE-C.E.T.P. UNITS SIZES.

PIPES, VALVES & FITTINGS NOT SHOWN IN THIS DRAWING.

3

4

2.

NOTES :

ORIENTATION SHALL BE AS PER SITE REQUIREMENT.

6.

1.

ALL DIMENSIONS IN MILLIMETRES (mm ). SIZES SHOWN ARE INTERNAL.

LAYOUT PLAN OF PROPOSED C.E.T.P. - PATLIPUTRA

Watchman

Room

13100

GATE

GATE

07.01.16

ALL (3NOS.) GATES ARE 4.50METRES WIDE.7.

1200

0

2000

2500

1200

1200 CENTRIFUGE / VOLUTE SHALL BE KEPT ON TOP OF WET CHEMICAL SLUDGE TANK.8.

OFFICE, LAB. & P.L.C. ROOM SHALL BE ON 1st FLOOR OVER HOUSING FOR TURBO BLOWERS. 9.

4503

FILTER PRESS SHALL BE KEPT ON TOP OF WET CHEMICAL SLUDGE PUMPS ROOMS.10.

7500

60008200

5000

4000

4500

3000Housing for

Air. Compr.

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