AGRA WATER SUPPLY PROJECT - adfagra.org · JICA Assisted AGRA WATER SUPPLY PROJECT (ID-P185) Uttar...
Transcript of AGRA WATER SUPPLY PROJECT - adfagra.org · JICA Assisted AGRA WATER SUPPLY PROJECT (ID-P185) Uttar...
JICA Assisted
AGRA WATER SUPPLY PROJECT
(ID-P185)
Uttar Pradesh Jal Nigam
NJS Consultants Co. Ltd., Japan
In Association with
Mott MacDonald, UKTCE Consulting Engineers, IndiaShah Technical Consultants Pvt.
Ltd, India
144 MLD WATER TREATMENT PLANT
PROCESS DESIGN
Dr. Uday Kelkar
Dr. Ghulam Mustafa
Outline
Yamuna Water Characteristics
Major Issues with Yamuna Raw Water
Product Water Criteria
Treatment Processes for 144 MLD WTP
MBBR Process
Membrane Filtration
COMPARATIVE STATEMENT OF GANGA & YAMUNA RIVER WATER QUALITY
Data of Year 2005
Sl. No.
Particular Permissible Limit as per CPCB & BIS
Ganga Water at Mathura
(Mat Branch)
Yamuna River at Agra
1 pH 6.5 – 8.5 8.75 7.1-8.28
2 Chloride 600 16 264
3 Total Hardness 122 356
4 Total Dissolved Solids (TDS)
2000 190 250-1420
5 Chlorine Demand - 1.00 23.50
6 DO >4.0 9.60 0-8.4
7 BOD <3.0 0.60 7-26
8 COD <10.0 5.10 27-83
9 TKN (Org N + NH3) - - 2.24-26.5
10 MPN, Index/100 ml <5000 280 23000
Note:- All parameters are in mg/l, except pH and MPN index.
Major Issues with Raw Yamuna Water
Deteriorated Quality of Yamuna waterNH3-N as high as 40 TIMES against limit < 1 mg/lit.
BOD as high as 12 TIMES against limit < 3 mg/lit.
PRE-CHLORINATON DEMAND as high as 134 mg/lit.which is too high
Excessive chlorination is used to oxidize Ammonia which is carcinogenic. (Cancer Causing)
Conventional treatment process not suitable toreduce BOD, NH3 and Nitrate from Yamuna rawwater.
Need for a Biological Treatment Process
Future Population of Agra (Census of India 2001)
1,000,000
1,500,000
2,000,000
2,500,000
3,000,000
2001 2006 2011 2016 2021 2026 2031 2036
Year
Agra
Persons
2,033,000
2,909,000
1,260,000
Water Demand (Agra)
0
100,000
200,000
300,000
400,000
500,000
600,000
700,000
800,000
2006 2011 2016 2021 2026 2031 2036
Year
m3/day Raw water demand (No pipe rehabilitation)
Raw water demand (pipe rehabilitation)
Total Capacity (New plant +WWI+WWII) 510 MLD
Existing Plants (WWI+WWII)
366 MLD
Ganga Water
340 MLD
Availability of Raw Water at Agra
Town YearWater
Demand (Cusec)
Ganga Water
(Cusec)
Yamuna Water
(Cusec)
% additional
Yamuna Water
AGRA
2006 142 140 -- 0%
2011 160 140 20 12%
2016 179 140 39 22%
2021 199 140 59 30%
0
5
10
15
20
25
30
35
40
BO
D5
mg
/L
Month
Minimum
Maximum
Typical Variation of BOD5 in Yamuna Raw Water
Raw Water Quality of Yamuna River at Sikandra
Adopted from Agra Jal Sansthan, Sikandra Plant
0.00
20.00
40.00
60.00
80.00
100.00
120.00
140.00
160.00
0 5 10 15 20 25 30
Ch
lori
ne
De
ma
nd
(m
g/L
)
Ammonia (mg/L)
Ammonia to Chlorine Demand
Actual Cl2 Demand
Product Water Criteria
Product Water Characteristics :
Parameters Units Design Values
Flow rate MLD 141
pH - 7-8.5
TN mg/L < 10
NH3 mg/L <2 for 95% time
NO3 mg/L <40
BOD5 mg/L <2
Turbidity NTU ≤0.5
TSS mg/L <0.5
True Color Pt/Co Scale ≤ 5
Total Coliform Counts/100ml 0.0
Total Virus Counts/100ml 0.0
Alternative Technology
•Reliability and sustainability
•Technical feasibility
•Plant footprint
•Capital cost
•Operational cost
Process Options
Conventional Activated Sludge Process
Moving Bed Bio-Reactor (MBBR)
Membrane Bio-Reactor (MBR)
Reverse Osmosis Process (RO)
Other Criteria
Proven technology
Reliability and sustainability
Plant footprint
Capital cost
Operational cost
144 MLD AWTP Design
Treatment Processes:
Pre-Setting Tank - with Tube Setter
Fine Screen – 5 mm Auto Cleaning Screen
Moving Bed Bio-Reactor Process
Membrane Filtration
Chlorination
Water Distribution System
WW2B CONSTRUCTION SITE
Major Processes and its Use
Advance Process
Pre-settlers to reduce TSS level in downstream processes
Auto Cleaning Fine Screens
to safeguard the downstream processes
MBBR Biological Process
to reduce ammonia, Nitrate and BOD
Ultra Filtration process
to eliminate TSS, bacteria and virus
Pollution Control
Sludge Treatment Facility
to recover water and to avoid waste sludge discharge to river
Waste discharge routing to the river
to discharge waste stream to downstream side of the raw water intake
Operational Control
Plant Automation using SCADA
It requires additional instrumentation, sensors and actuators
144 MLD WATER TREATMENT PLANT AT SIKANDRA
MBBR Salient Features
Significantly lower footprint required
Suitable for high-load applications
Simple operation
Low O&M costs
No sludge re-circulation
Low sludge yield
Simultaneous BOD and Nitrogen Removal
High quality effluent
MBBR for BOD & NH3 Reduction
Typical Configurations of MBBR for Nitrogen Removal
144 MLD MBBR DesignConfiguration
Feed EthanolEffluent
Material: HDPE (virgin or recycled)
Size: 10- 14 mm
Surface area: 500-1000 m²/m³ of carriers
Geometry: Highly open external surface
Biomass Carriers
AquaWise BioMass Carrier
Case Study for Ammonia Removal MBBR Plant - Israel
0
5
10
15
20
25
30
35
40
45
50
55
07-0
1-2
010
12-0
1-2
010
17-0
1-2
010
22-0
1-2
010
27-0
1-2
010
01-0
2-2
010
06-0
2-2
010
11-0
2-2
010
16-0
2-2
010
NH
4-N
co
nc.
[mg
/l]
Date
NH4-N inlet (mg/l) NH4-N outlet (mg/l)
Influent
Effluent
Design Effluent Concentration
Results - MBBR Pilot Plant - Florida
MBBR-UF Pilot Plant
MBBR-UF Pilot Plant – Agra WTP
SecondaryWastewater
MBBR Membrane Filters
Membrane filters
Filtration size 0.1 to 0.01 microns
TSS in filtrate <0.5 mg/L
Status in India Being considered
Protozoa 0 mg/L
Faecal Coliforms < 2 / 100 ML
Membrane Filtration
Removal of Bacterial Contaminants
Membrane Contaminant Removal
Reverse Osmosis
Nano Ultra Micro
0.0001 0.001 0.01 0.1 1.0 10 100
.
Pore Diameter - microns
1 micron
Hemoglobin0.007 microns
Na Ion0.00037 microns
Giardia Lamblia &
Cryptosporidium
3 to 5 microns
Water0.0002 microns
Virus
Hollow Fiber Configurations
More difficult to remove solids from confined pressure vessels, tightly packed fibers
Use higher pressures as membranes become fouled
Expensive pressure vessel required for each unit
Open tank configuration, loosely packed fibers for easier solids removal
Low pressure, vacuum-driven operation
Simpler scale-up for larger systems
PressurizedImmersed
Tertiary Membrane Competition
Koch
Memcor CP
(USFilter)
Pall MicrozaNORIT Memcor CS (USFilter)
Hydranautics HydraCAP Trisep Spirasep
Dow / Omexell
Thank You!