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Degremont
Water Treatment Technologies &A Case study of 635MLD WTP at Sonia Vihar- Delhi
presented by
Mukesh GROVERChief Technology Officer
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Slide: 2
Degremontthe Group
a worldwide Group within
Suez Environnement, France,responsible for Water Treatment,Design-Build Projects and O&M Services
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Slide: 3
DegremontThe Group
COMMITTEDTOGETHER
TO WATER,
A SOURCE OFLIFE
of experience70 YEARS
technologiespatentedto date
OVER 500
human resourcebase
4,400
turnover in 2009
€ 1,053 m
spent onR&D in 2009
€ 13.4 m
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Slide: 4
DegremontThe Expert ise and Exper ience
plants builtworldwide
Inhabitant equivalentserved by wastewatertreatment facilities
operated by Degrémont
25.6million
people served bydrinking water facilities
operated by Degrémont
25 million
1 Billionpeople servedby facilities built byDegrémont
10,000
COMMITTEDTOGETHER
TO WATER,
A SOURCE OFLIFE
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Slide: 5
DegremontFour key areas of expert ise
Water treatment for drinking and industrial use
Sewage/Waste water treatment & recycle
Sludge treatment
Desalination (through Reverse Osmosis)
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Slide: 6
DegremontStrong & c ommit ted presence in India
DESIGN AND BUILD PROJECTS Commissioned Asia’s largest drinking water filtration plant (1,910 MLD)
at Bhandup-Mumbai, in the year 1981.
Indian subsidiary, since 1986 .
Over 300 staff. Over 150 Water / Waste water treatment installations in India.
OPERATION AND MAINTENANCE - Long term commitment
16 installations under O & M Service Contract.
2.5 billion litre per day – the combined capacity of all treatment
plants under O & M.
1.2 % of population equivalent served in India.
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Slide: 7
Degremont – WTP Major InstallationsStrong & c ommit ted presence in India
• DELHI -SONIA VIHAR - -635 MLD TURBOCIRCULATOR + PULSATOR
+ AQUAZUR V + SLUDGE RECYCLE
• CHENNAI - CHEMBRABKMM- 530 MLD PULSATOR + AQUAZUR V
• JAIPUR - BISALPUR - 400MLD PULSATOR + AQUAZUR V
• BANGALORE- TK HALLI - 400 MLD PULSATOR + AQUAZUR V
• KOLKATA - PALTA - 270 MLD (3 x 90 MLD) PULSATOR + AQUAZUR V
• NAGPUR -GOREWADA - 120 MLD PULSATOR + AQUAZUR V
• TRIVANDRUM - 74 MLD PULSATOR + AQUAZUR V
• DELHI - WAZIRABAD - 50 MLD PULSATUBE + Rapid Gravity filters
• DELHI – OKHLA - 28 MLD NITRIFICATION + OZONATION
UNDER CONSTRUCTION• BOMBAY(BHANDUP) - 990MLD PULSTUBE + AQUAZUR V + SLUDGE RECYCLE
• BANGALORE- TK HALLI - 550 MLD AQUADAF + AQUAZUR V + SLUDGE RECYCLE
• KERALA – KOZIKHODE - 174 MLD PULSATOR + AQUAZUR V
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Slide: 8
Degremont Water Clarification Technologies
Turbocirculator - Solids contact
Densadeg - High rate solids contact with lamella tube
Pulsator - Pulsating sludge blanket
Pulsatube - Pulsating sludge blanket with lamella tubes
AquaDAF - Very high rate dissolved air flotation
Degremontover 70 years of providing treatment solutions
Water Filteration Technologies
Aquazur-V -Rapid Gravity Sand filters
Mediazur -Dual Media filters
Carbazur -Activated Carbon filters.
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Slide: 9
ClarificationTechnology
Typical ClarificationRates (m/hr)
Typical Application Major IndianInstallations
Turbocirculator 2.0 to 3.5
(upto 5.0 for softening)
Clarification, Pre-
settling, Softening
Delhi, Orissa
Densadeg 10.0 to 20.0
(upto 30 for softening)(upto 100 for storm
water)
Clarification,
Softening, Stormwater clarification,
Filter Washwater
clarification
Delhi, Bangalore
Pulsator
Pulsatube
2.5 to 4.0
4.0 to 8.0
Clarification Delhi, Chennai,
Bangalore,
Mumbai,Kolkatta
AquaDAF 25.0 to 40.0 Clarification
(<50 NTU)
Bangalore
Degremont Clarification TechnologiesTypical Clarification Rates and Application
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Slide: 10
Turbocirculator Clarifier High rate solids contact type reactor clarifier
Features:
• Simple & robust process
• Very efficient
• Multiple application
Typic al app l icat ion s: • DW : Clarification, Lime Softening, Pre-settler
• WW : Primary & Tertiary Clarification
• IWW/PW : Carbonate removal, Metal Precipitation,Colour removal
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Slide: 11
Densadeg Clarifier Very high rate solids contact type Lamella clarifier
Features:
• Compact, Versatile & robust
• Very efficient, High QualityWater
• Multiple application
Typic al app l icat ion s: • DW : Clarification, Lime Softening
• WW : Primary & TertiaryClarification
• IWW / PW : Carbonate removal,Metal Precipitation, Colour removal
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Slide: 12
Pulsator Clarifier Pulsating sludge blanket type clarifier
Features:
• Modular & robust process
• Rectangular Flat Bottom RCC Tank
• No underwater moving parts
• Even water distribution over entire bottom
• Even sludge withdrawal across the tank
Typ ical appl icat ions : • Raw Water Clarification (River, Dam, Reservoir)
• Clarification of Water with Algae
O S
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Slide: 13
AquaDAF Water Clarifier Dissolved Air Flotation process
Features:
• Robust process• Very small footprint
• Modular
• Polymer not necessary
• Operating Principle•Upward floatation with Recycle
stream & micro bubble bed
production.
Typic al app l icat ion s:
• Clarification of low turbidity waters
• Water with low density solids (i.e. Algae, etc.)
• Water with high TOC
• Cold waters; Thermal variation
• pretreatment before Membrane filtration
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Slide: 14
AquaDAF Water ClarifierInternal System (HF Model)
Sludge Channel
FlotationZone
Mobile WeirHydraulic Flocculation
Air-WaterDispersion Zone
Coagulated Water Inlet(after Flash Mixer)
Flash Mixer
Accumulated
Sludge Layer
False Floor
TransitionZone
ClarifiedWater
Channel
CompressedAir
Raw water
Clarified
Water
Sludge
Recycled clarified water
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Slide: 15
AquaDAF Water Clarifier Advantages
•Flexible & Robust :• treats water with temperature >3°C
• best solution for low turbidity / high algae
raw water
• adapts to occasional peaks of TSS or
Turbidity upto 200 NTU.
• Cost effective :• Reduction in the time required for the
response to 5 min
• Decrease the size of footprint while
retaining its performance.
• Easy to operate :
• Easy to operate and maintain (very few
mechanicals, no lamella modules, no
clogging)
• No need to add material to weigh down the
flocs.
• Instantaneous Start and Stop.
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Slide: 16
AquaDAF ClarifierTK Halli 600MLD WTP, Bangalore - Project Fact Sheet (under
construction)
•
AquaDAF HF3028 m3/m2.hr design clarification rate
Flocculation – Hydraulic
Hydraulic Desludging – by Mobile Weir on clarified water side
Footprint = 4,000 m2 <<< 1/4 th of area reqd. by L amella Clarif ier >>>
Design Performance AquaDAF Clarifier Overall Plant
Plant treatment capacity 600 MLD 600 MLD
Raw water quality (turbidity) 20 NTU (90%iles), 100 max. -
Water loss - < 2%
Treated water quality
(turbidity)
< 5 NTU (typically< 2 NTU) < 0.5 NTU
Longer Filter runs - 72 hrs (3 days)
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Slide: 17
Aquzur-V Filter – Cross Section
Unique Cross-Wash
during Backwash
Uniform Media Size – In-depth
filtration, Longer Filter Runs
Advanced
Nozzle Floor
•High filtration rates (7 - 15 m/h)• Deep & homogenous filter bed• Uniform feed through V-Channels• In-depth Clogging• Positive Pressure Over Entire Sand Depth• No bed expansion during washing• Surface sweep during washing
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Deliver ing the Essentials of L ife
635 MLD Water Treatment Plant
at Sonia Vihar-Delhi
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Slide: 19
635 MLD WTP AT SONIA VIHAR
Contract Particulars● Client : Delhi Jal Board
● Contract : Design, Build and 10 years of O&M
● Contractor : Consortium of Degrémont France & Degrémont Ltd.
● Contract commencement date : December 2000
● Construction Completed in : December 2004
● Conditions of Contract : EPC/Turnkey Projects, FIDIC First Edition 1999
● Contract Value : Rs 189 Crores.
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Slide: 20
635 MLD WTP AT SONIA VIHAR
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Slide: 21
PROCESS FLOW CHART
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Slide: 22
WTP, SONIA VIHAR – UNIQUE FEATURES
● One of the largest single stage water Treatment Plant projects in India
● Caters to a Population of 3.5 Million in Delhi
● Fully Automated - SCADA Controlled
● Total area - 35 Acres (140,000 Sqm)
●Other important units:• 3 Major Pump Houses
• 90 Million Litres of storage in 8 Reservoirs
● Total Connected load = 15 MW, Operating Load 6.6 MW
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Slide: 23
Design Conditions and Constraints
● Differing sources of raw water: River Ganges & River Yamuna● Pronounced fluctuations in Water Quality( Range- 25 – 8,000 NTU)
● Water losses restricted to < 1.5%
● Treated water quality < 1 NTU ( < 0.4 NTU - 90%ile)
Solution Adopted● Water Line: 3 stage Treatment
• Presettler
• Pulsator-Pulsating Sludge Blanket Clarifier
• Aquazur – V : High Rate Gravity Filters
● Waste Line: Dewatering of Sludge and Backwash water recovery
635 MLD WTP AT SONIA VIHAR
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O C G O
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Slide: 24
PROJECT MAGNITUDE : AN OVERVIEW
● Civil works comprise One Lac cum of Concrete, 25,000 Piles
and 6 Lac cum of earthwork.
● 20 Km 0f Pipe work which includes 1.7 m dia 2 Kms of MS Pipe
on high rise RCC trestles, 2.0 m dia RCC Pipes & 16 Kms of
internal yard piping laid and tested.
● 25 large capacity pumps installed in 3 major pump houses withcombined capacity of 1,40,000 Cum/Hr.
● 3 Substations with total installed capacity of 16 MW.
● Over 100 km of cables have been laid.
● 10 control stations installed shall provide operational flexibility
to access and control any part of the plant.
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635 MLD WTP AT SONIA VIHAR
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Slide: 25
635 MLD WTP AT SONIA VIHAR
In operation since October 2006
• Consistently producing high quality water.
• ISO 14001 & OSHAS 18001 Certified — 1st Plant in this sector.
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635 MLD WTP AT SONIA VIHAR
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Slide: 26
635 MLD WTP AT SONIA VIHAR
Operation and Maintenance
● Contract Value: Rs 7.70 Crore / annum + Escalation
● Incentives for extra production & power saving
● Heavy penalties for water losses and extra consumption of power
● Payment made on monthly basis as per following Formula
● Monthly Fee= Fixed Charges+ 0.2388*Quantum of water in Cum, produced
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Slide: 27
O&M and Power Costs – per m3
Plant MLD Technology O&M Cost
Power Cost -
Lacs
TotalCost
/m3
Pumping
Stations
Annual-
Lacs Rs / m3 Units/Day
per
Day Rs/m3
Sonia Vihar 635
Pulsator+Aqu
azur 876 0.38 147,320 6.63 1.04 1.43
Raw &
Treated Water
Chembarrak
kam 530
Pulsator+Aqu
azur 744 0.39 96,990 4.36 0.82 1.21
Raw &
Treated Water
TK Halli 400
Pulsator+Aqu
azur 312 0.22 8,800 0.40 0.10 0.32 No pumping
Nagpur 120
Pulsator+Aqu
azur 168 0.39 27,700 1.25 1.04 1.43
Treated
Water
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Slide: 28
NEED OF THE HOUR…
Compact Foot-Print
Reliable Technologies
Proven in Indian conditions
Least Energy consumptionLow water losses
Delivering consistent Quality
Water
Committed together to water, a source of
life