example of water treatment plants - university of...
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![Page 1: Example of water treatment plants - University of Belgradewater-environment.vin.bg.ac.rs/presentations/banja/Schrotter/2... · 2 Jean-Christophe Schrotter TRANSPORTS SERVICES ENERGETIQUES](https://reader033.vdocuments.site/reader033/viewer/2022051717/5a6fb8177f8b9ab1538b5475/html5/thumbnails/1.jpg)
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Example of water treatmentplants
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Membrane development over the last 15 years in Veolia
1989 :MF ceramic1st drinking water(2000 m3/d) St Maurice les Chateauneufs (France)
2002 : MF(126 000 m3/d)Bendigo (Australia)
1997 : BIOSEP1st MBR
1999 :NFNanofiltration (140 000 m3/d)Méry/Oise (France).
Sept 2005 :OI(326 000 m3/d)Ashkelon (Israel)
2000 : UF(160 000 m3/d) ClayLane (UK) 2003 : ARAMIS
Membrane center of expertise
2003 : MBR(40 000 m3/d)Noord Canal (Germany)
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Examples of membrane integration in process train
Raw water
Drinking water
Disinfection+ pesticides
+ nitratesClarification +disinfection
Pump
CoagulationFloculation
Post treatment
Raw Water
Drinking Water
Disinfection+ pesticides
Pump
Settler
Post treatment
Raw water
Drinking water
Microfiltration
CoagulationFloculation
GAC
Ultrafiltration
Pump
CoagulationFloculation
settler
Sand filtration
Post treatment
Nanofiltration
Ozone
Ozone
Filtration GAC
Drinking water
Raw water
Pump
CoagulationFloculation
settler
Sand Filtration
Post treatment
Reverse Osmosis
Desalination
Typical Process trains for drinking water production
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Example for Clarification / Disinfection :Yvetot (Site de Héricourt) - France
Karstic water treatment :• Turbidity removal• Bacteries removal
Plant capacity:•5 000 m3/ d• membrane area : 2 x 1 350 m2
• operated since 1997 by Veolia Water
Pump
CoagulationFloculation
Post treatment
Raw water
Microfiltration
Drinking water
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Example for Clarification / Disinfection :Coliban - Australia
Coliban :• 126 000 m3/d in Australia,• in operation since April, 2002• Immersed Membranes (cmf-s) operated by
Veolia Water• Main Objectives: clarification and disinfection
Pump
CoagulationFloculation
Post treatment
Raw water
Microfiltration
Ozone
Filtration GAC
Drinking water
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Pump
Post treatment
Raw water
Drinking water
GAC
Ultrafiltration
Ozone
example disinfection + pesticides : Clay-Lane (UK) :
CAG + UF on groundwater -• Objective : Pesticides + Cryptosporidium• Capacité : 160 000 m3/j• Ozone + GAC for pesticides (1996)• UF for Cryptosporidium• Operated since Feb, 2001 by Veolia Water
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
example disinfection + pesticides + nitrates : Magenta (F)
• Removal of DOC, nitrate and pesticides with NF • Physical Disinfection•Removal of turbidity• Capacity 2600 m3/d• Operated since 2000 by Veolia water
Raw water Treated w
Average turbidity
NO3 : Average
18 NTU 0,1 NTU
37 mg/l 12 mg/l
Max. turbidity
NO3 : maximum
82 NTU 0,26 NTU
52 mg/l 18 mg/l
Raw water
Drinking Water
Pump
CoagulationFloculation
settler
Sand filtration
Post treatment
Nanofiltration
Cart. filter
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Example disinfection + pesticides + nitrates : Méry sur Oise (F)
• Main objectives: BDOC removal, pesticides removal, partial softening
• 140 MLD, operated by Veolia Water since 1999
• World ’s largest nanofiltration plant for surface water
• NF 200 membrane, jointly developed with DOW
Raw water
Drinking water
Pump
CoagulationFloculation
Settler
Dualmediafilter
Post treatment
Nanofiltration
Ozonation
Card. Filter
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Example of desalination plant : Ashkelon (Israel)
Raw water
•Water desalination (TDS < 300 mg/l)• Bore < 0,4 mg/l• Physical disinfection• capacity 326 000 m3/j• Operated since sept 2005 by Veolia water/IDE
Drinking water
Pump
Coagulation
Dualmediafilter
Post treatment
Reverse Osmosis
Cart. Filter
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Design - Reverse Osmosis
4 pass RO design1st pass 45% recoveryPart of first pass permeate is fed to the final permeate2nd pass
85% recoveryHigh pH for boron removalantiscalantPermeate from 2nd pass is part of final product
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Design – Reverse Osmosis
Brine from 2nd pass feed to 3rd pass3rd pass –
85% recovery Low pH
4th pass treats permeate from 3rd pass to remove any remaining boron4th pass
90% recoveryHigh pHAntiscalantPermeate part of
final product
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Design – Reverse Osmosis
Number of RO trains32 for 1st pass8 for 2nd pass2 for 3rd and 4th
passesMembrane elements
25,600 SWRO type15,600 BWRO typeDow Filmtecmembranes
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Design – Process Schematic
Boosters10x
DWEERS40x
Drain
Membranes 2nd stage
H2SO4Membranes 3rd stage
Antiscalant
Degasifier
DegasifierTo client
3000 m3
Membranes 1st stage16 trains
IntakeNaOCl
H2SO4
Dual media Filters
Micronic Filters6x
Boosters3x
Boosters4x
NaHSO3
Micronic Filters8x
FeCl3 Polymer
NaOH
AntiscalantNaOH
NaOHNaOCl
Filtered water tankBackwash pumps
Air blowers
HP pumps4x
4x3 trains
1 train2/1
2/2
3/1
3/2
2x
2x
1 train
1 train
4/2
4/12x
20 filters
Static mixer
3x
3x
2x
Ashkelon desalination plantProcess diagram
Limestonefilters
6x
Backwash tank
Membranes 4th stage
NaOClH2SO4
Air blowers2x
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TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Perthes en Gatinais
Example of MBR : the Biosep process
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
TECHNOLOGY of the BIOSEP PROCESS
Treated water( permeate )
Sludge extractionpump
Rawwaste water
To sludge dewatering
Air Blower
Fine screening1-2 mm
Permeate/Backwashpump
Permeatetank
BiologicalActivated Sludge
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
BIOSEP® – Perthes en gatinais
Water Quality
Parameters Unit Raw water Moy Min Max
Treated water Moy Min Max
COD mg/l 448 231 549 26.5 5 40BOD5 mg/l 198 144 238 ≤ 5 ≤ 5 ≤ 5SS mg/l 224 97.5 334 ≤ sd ≤ sd 5NT mg/l 42.6 25.9 66.7 7.8 5.2 21.3N-NH4 mg/l 33.1 24.3 43.2 0.6 0.0 2.2N-NO2 mg/l 0.1 0.0 0.6 0.0 0.0 0.0N-NO3 mg/l 0.2 0.0 1.1 6 3.2 21.2Pt mg/l 9.1 7.8 10.7 0.3 0.1 0.9
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Cooperl, 2003, Reuse treatment in F&B with BiOSEPTM and RO producing1000 m3/d (2003)
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
NH3
Cl2
TDS = 800 mg/L
TDS < 50 mg/L
Industrial Customers
BNRBiological Nutrient Removal
Tertiary Filtration
Ocean OutfallUV
Wollongong Clarificationand SedimentationPrimary Screening
RO Units
MF Backwash
Product Water
Microfiltration
Illawarra NSW, Design Build, 2004IllawarraIllawarra NSW, Design Build, 2004NSW, Design Build, 2004
uv
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Kwinana Water Reclamation Plant Case Study (2004)Using a sophisticated dual-membrane technology
ObjectiveRecycling wastewater from Perth’s Woodman Point Waste Water Treatment Plant for industrial reuse
Capacity16,700 m3/day and upgradableto 26,700 m3/day
TechnologyDual-membrane technologymicrofiltration (submerged continuous microfiltration CMF-S) and reverse osmosis
Quality of waterHigh quality treated water will be used by industrial customers: TDS guaranteed by Veolia: 50 mg/L
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Kranji Plant (53 000 m3/d)
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
upgrading of
biological process
intermediate
secondary
pumping
Ballasted Settling
(ACTIFLO®)
Filtration
(HydrotechDiscfilter)
UV secondary disinfection
post secondary disinfection
micro-filtration
reverse osmosis
oxygen saturatio
n
2500 m3/dayAquifer recharge to avoid salt-intrusion
172,800 m3/dayecological flow of Llobregat river
64,800 m3/dayirrigation of farm areas
34,560 m3/day recharge of wetlands
The biggest municipal wastewater reuse plant in Europe
Barcelona50 millions m3/year
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Direct drinking water production : Windhoeck Plant (Namibia)
Pre O3 coag flottation filtration ozonationfloc
UF membranes GAC BAC
H2O2KMnO4
Cl2 NaOH
DAM
WWTP
O3
21 000 m3/d
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Windhoeck
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
KEY OPERATING LESSONS
• Adequate training and operating procedures are essential (keypossible failures, cleaning, recommended first actions)
• Need for operator-support tools to help develop a continuousdiagnostic of the hydraulics/behaviour of the plant and anticipate problems ASAP (smart but robust interface betweensupervision and operators)
• Access to strong chemical/biochemical analytical backup possible fouling/cleaning diagnostic (some applications are tough!)
• Integration of Membrane operations into global water and waste operating scheme (sludge disposal, pre-treatment, pollution prevention plans as well as possible process water segregation)
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
CONCLUSIONS :
Membranes and Membrane Processes are not Magical!! Their implementation at very large scale still representsan unacceptable level of technico-economical risk todayfor some applications.
The challenge : Find the right place for these tools into our toolbox, develop the right process trains for each application, develop robust adapted operating practices, minimizing technical and financial risks
Membranes need to be forgotten, or seen as only part of the treatment solution in order to gain full potential in Water and Wastewater Treatment
Think and focus on treatment train rather than individual processes !
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Jean-Christophe Schrotter
TRANSPORTS PROPRETE EAUSERVICES ENERGETIQUES
Thank you