INNOVATION IN WATER TECHNOLOGY FOR SUSTAINABLE …€¦ · Low Temperature Zero Discharge plant is...

CONCEPT ENGINEERING SERVICES

INNOVATION IN WATER TECHNOLOGY FOR SUSTAINABLE WATER MANAGEMENT

AN APPROACH TO MAXIMIZE RECOVERY, TREATMENT AND RECYCLE OF WASTE WATER

No.1645/1646; 16th Main; 10th Cross, Nisarga Layout; Bannerugatta Post; Bengaluru – 560 105; India Ph: +91‐80‐29760391 , Mob: +91‐9986159306, E‐mail: [email protected]

NAGESH GANESH HEGDECEO

CONCEPT ENGINEERING SERVICES, BENGALURU.

WORLD WATER SUMMITDELHI, INDIA21st – 23rd AUGUST‐2019

WHO WE ARE? & WHAT WE DO?:Company is established in 2011.Company is providing the Engineering Solutions from concept to commissioning in the following area:

Desalination PlantsWaste water plantsWater treatment plantsPower plantsProcess industriesBalance of plantsOffshore plants

HVACFire protection Building management servicesEnergy and environmentUtilities and equipment designDesign & Engineering Automation ServicesTraining for Engineering Customization

03‐09‐2019 CONCEPT ENGINEERING SERVICES 2

Background

03‐09‐2019 NAGESH HEGDE 3

Today safe treatment and disposal of waste water in many parts of the world is a Challenge.For the sustainable development of any community needs the proper Balance of Water – Wastes –Products (Consumptions) – Energy.Today “Water”which is best described as “ONE FOR ALL AND ALL FOR ONE” is becoming very precious commodity Effective conservation, reduce and recycling of water is need of the hour. In this direction Concept Engineering Services did the research and developed Low temperature Zero discharge unit.


STP

• Need Large Area• Need Extensive Pre‐& Post Treatment.

• Sludge Disposal• Operating Cost.• Smell And Quality Of Treated Water.

• Recycle And Re‐use ?

IWTP

• Very Hard Waste Material To Treat.

• Many Stages Of Pre‐treatment

• High Capex Process Stages.

• Corrosion Issue.• Highest Degree Of O&M Requirement.

• Very High Power Consumption.

• Disposal Of Sludge.

DESAL

• High CAPEX & OPEX

• Concentrate Disposal Is An Issue.

• High Corrosion And Erosion Issues.

• High Energy Intensive.

FOOD AND BREWERAGES

• Recycle And Re‐use Of Water.

• Treatment Process To Meet The Statutory Compliances.

• Disposal Of Waste.• High Capex And OPEX.

HUMAN FACTORS…?

BackgroundCurrent Issues in Waste Water Treatment, recycle and re‐use Plants


One Technology – Many solutionsLow Temperature Zero Discharge plant is combination ofVacuum Boiling, Adsorption, Condensation and Refrigerationcycle.Vacuum Boiling : Waste effluent from the plant will be boiled in

vacuum chamber @ 30oC; by creating theproper vacuum. The generated water vaporwill be passed through Adsorption chamber.

Adsorption : by using the special desiccant which works intemperature range of 30oC to 75oC. Thedesiccant particles adsorb the water vaporduring the cooling cycle and desorb during theheating cycle.

Condensation: desorbed water vapor will be condensed togenerate the pure water.


Refrigeration: Based on the influent water type; theconcentrate will be sent to either centrifuge orfor the eutectic cooling where the sludge / saltwill be further segregated / concentrated.Further the sludge or salt slurry will be dried inlow temperature drying unit, which also workson the refrigeration cycle.

“ Saturation equilibrium points between ice‐water‐solute exists which is called as Eutectic Point”. At this temperature salts will precipitate.

One Technology – Many solutions


FIG‐2: SCHEMATIC VIEW DRIER –TYPE‐1



FIG‐3: SCHEMATIC VIEW DRIER –TYPE‐3



FIRST SIMULATION CONDITIONS:INFLUENT WASTE WATER CONDITIONS:A. TEMP : 25oC TO 30oCB. TDS : 35000mg/LC. pH : 5 to 8D. TSS : 350mg/LE. COD : 250mg/LF. BOD : 100mg/LG. O&G : 10mg/L

SOURCE OF THERMAL ENERGYA. HOT WATER

i. TEMP : 70oC TO 75oCii. HEATING : ELECTRICAL POWER

B. COLD WATERi. TEMP : 20oC TO 25oCii. COOLING : COOLING TOWER

C. INCREASE IN TEMPERATURE : 8oCD. COOLING & HEATING WATER:

CONSIDERED AS POTABLE WATERREFRIGERATION UNIT:A. TEMP : ‐5oC TO +6oCB. TYPE : R12 PRODUCT WATER:

A. TEMP : <30oCB. TDS : <10PPMADSORBENT DETAILS:

A. TYPE : MOLECULESB. SURFACE AREA : 6.2M2/gmC. NO. OF BED : 2NOS



SECOND SIMULATION CONDITIONS:INFLUENT WASTE WATER CONDITIONS:A. TEMP : 25oC TO 30oCB. TDS : <1000mg/LC. pH : 5 to 8D. TSS : 500mg/LE. COD : 5000mg/LF. BOD : <500mg/LG. O&G : 20mg/L

SOURCE OF THERMAL ENERGYA. HOT WATER

i. TEMP : 70oC TO 75oCii. HEATING : ELECTRICAL POWER

B. COLD WATERi. TEMP : 20oC TO 25oCii. COOLING : COOLING TOWER

C. INCREASE IN TEMPERATURE : 8oCD. COOLING & HEATING WATER:

CONSIDERED AS POTABLE WATERREFRIGERATION UNIT:A. TEMP : ‐5oC TO +6oCB. TYPE : R12 PRODUCT WATER:

A. TEMP : <30oCB. TDS : <10PPMADSORBENT DETAILS:

A. TYPE :MOLECULE+ CARBONB. SURFACE AREA : 6.2M2/gmC. NO. OF BED : 2NOS



• BATCH PROCESS• BASED ON THE CYCLE TIME



0%

5%

10%

15%

20%

25%

30%

35%

40%

45%

0

10

20

30

40

50

60

70

80

0 50 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000

% OF WAT

ER REC

OVE

RY AS %BE

D W

EIGHT

BED TEM

P DEG

.C

TIME IN SEC

GEL TEMP. V/S CYCLE TIME

TEMP. BED‐ 1 TEMP.BED‐2 WATER PRODUCTION % OF GEL WT.



99.38 93.75 87.578.13

124.8

162.24

220.48

291.2

0.68 0.70

0.83

0.89

‐

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

1.00

0

50

100

150

200

250

300

350

400

1000MG/L 10000MG/L 20000MG/L 35000MG/L

CAPE

X IN M

.INR/M3

RECO

VERY

IN % OPE

X INR/M3

TDS IN mg/L

INFLUENT LIQUID TDS V/S PERFORMANCE

% OPEX CAPEX



0

10

20

30

40

50

60

70

1000mg/L 10000mg/L 20000mg/L 35000mg/L

POWER

CONSU

MPTION ‐KW

/M3

TDS IN MG/L

POWER CONSUMPTION V/S TDS

1KLD 10KLD 50KLD 100KLD



• The unit is compact, modular design and is available in 10KLD, 50KLD,100KLD units. Entire unit is assembled on a skid and ready to use (plugand play system). It is designed for total automatic operation.

• The Sludge / waste effluent can be further treated in low temperaturesludge dryer for recovering the solids.

• No smell in treated water and it is ultra pure water (TDS~0, TSS=0,..)• This will bring down the stress on fresh water demand considerably.



THIS CAN BE APPLIED IN FOLLOWING INDUSTRIES

INDUSTRIES WATER RECOVERY ZLD OR SALT RECOVERY

DESALINATION WR ZLD /SR

TEXTILE WR SR

PHARMACEUTICAL WR ZLD

DISTILLERIES WR

TANNERIES WR ZLD

SUGAR WR

DYE WR SR

FOOD PROCESSING WR

PAPER & PULP WR ZLD

WR : WATER RECOVERY ZLD : ZERO LIQUID DISCHARGE SR: SALT RECOVERY



PARAMETER NEW PRODUCT

DESALINATION

STP IWTP

PRIMARY TREATMENT MINIMUM NEEDED NEEDED NEEDED

SECONDARY TREATMENT NR NEEDED NEEDED NEEDED

TERTIARY TREATMENT NR NEEDED NEEDED NEEDED

LT EVAPORATOR NEEDED NEEDED NEEDED NEEDED

PRODUCT TREATMENT BASED ON TYPE OF USE

NEEDED NEEDED NEEDED

CHEMICAL CONSUMPTION NEGLIGIBLE HIGH HIGH HIGH

FOOT PRINT SMALLEST BIGGEST BIGGER BIGGER

1)CAPEX 0.7A TO 0.8A

1A 0.7A 1A TO 1.5A

2)OPEX 0.65B TO 0.7B

1B 0.6B 1B



ADVANTAGES DISADVANTAGES

No need for the robust pre‐treatment, primary treatment and tertiary treatment

Needs 1000micron rated inlet filter

Does not need separate concentrator To remove the non‐condensing gases, carbon filters may be required

Works at low temperature – environmental friendly

Sensitive to cooling and hot water temperature

Any waste energy (Temp >80oC) can be coupled with this unit.

Less corrosion, Low pressure hence Low material cost

Only for the product sterilization & remineralization chemicals are used. Except that no chemical consumption.

Very high recovery of water and low energy consumption



General Arrangement of One of the application

THANK YOU

03‐09‐2019 CONCEPT ENGINEERING SERVICES 23

INNOVATION IN WATER TECHNOLOGY FOR SUSTAINABLE …€¦ · Low Temperature Zero Discharge plant is...

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