UF solutions for Urban InfrastructureTechnology & Applications

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1. Introduction 2. Ultrafiltration Technology 3. Potable water treatment4. Sewage recycling systems5. MBR Technology6. Conclusion

Contents

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WWTP

Surface water

Ground waterSeawaterEffluent reuse

Potable waterproduction

UF RO

Ultrafiltration Applications

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Urban sector applications

Ultrafiltration adds value for :

Potable water

Process water

Waste Water (re-use)

Seawater pre-treatment

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MediaFiltration10 – 100 micron

UltraFiltration0.01 – 0.1 micron

ReverseOsmosis< 1 nm

SuspendedSolidsmicrobiologyhardness pesticides saltswater

SettleableSolids

colour hardnesspesticidessaltswater

colloidsVirusesLarge organics

colourhardnessPesticidessalts

water

MicroFiltration0.1 – 10 micron

colloids virusesLarge organicshardness pesticides saltswater

SuspendedSolidsbacteria

10 times smaller 10 times smaller

Filtration technologies

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6 corrugated plates:

optimal hydrodynamics

Nominal pore size 20 nm

~14.600 fibers 0.8 mm PES

8” module 0.8 mm (55 m2)

Ultrafiltration membrane

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8” X-Flow UF insert (40 m2)0,8 mm fiber diametermax. pore size: 25 nm

Corrugated plates:optimal hydrodynamics

Bypass tubes:minimal pressure loss in housing

Ultrafiltration membrane

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Ultrafiltration membrane types

Hollow Fibre

Capillary

Tubular

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Potable water requirements

Water Free from :

Potable water should have salts and minerals to desired levels

SiltColourOdurTasteHardnessMicrobial contaminationHeavy metals

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How effective is UF ?

UFCXiga & Aquaflex

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Removal of micro-organisms>Log 6 removal of bacteria>Log 4 removal of viruses

Pentair X-Flow UFComplete removal of suspended solids

TSS < 0.1 mg/lTurbidity < 0.1 NTU

Superb pre-treatment for SWROSDI15 << 3

Low energy consumption< 0.015 kWh/m3 permeate (based on TMP)

Partial removal organic matter (COD, TOC, colour)by limited feed water coagulation:

0.1 – 3 mg/l coagulant (as Fe/Al)10 – 50% COD/TOC removalup to 95% colour removal

Membrane Efficiency

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XIGA™ dead-end UF

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Aquaflex™ UF

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Potable water plantCommon wealth village – 1 MGD Commissioned : June 2010

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Potable water Inverness (1400 m3/h)

Surface water Minneapolis (11.600 m3/h)

Potable water plantsSurface water

16Potable water Sigey(1800 m3/h)

Surface water Annemasse(300 m3/h)

Potable water plantsSurface water

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Potable water plantsGround water

PWN Heemskerk, The Netherlands2900 m3/h

Keldgate, United Kingdom3700 m3/h

Clay Lane, United Kingdom (6700 m3/h)

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Conventional Sewage treatment

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Water Reuse Applications

Treated waste water finds wide applications in: Industrial Process waterFire fighting Air conditioning & VentilationGreen belt Irrigation CleaningFlushing

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Sewage Recycle scheme

2.5 MGR Sequence Batch

Reactor

Flash Mixer Clarifier Break Point Chlorination

Pressure Sand Filter

Multi Grade Filter

UltraFiltration UnitReverse Osmosis Unit

Stage 1

Reverse Osmosis Unit

Stage 2

Sewage(FeCl3 + Poly)

Final Product to DM PlantDegasser TowerFinal

Reject to Sea

Process Flow Diagram of Sewage Reclamation Plant – 2 at M/s CPCL, Manali, Chennai .

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CPCL Case Study

Parameters After Biological treatment UF Permeate RO Product

pH 7.46 6.67 6.34

Conductivity 1948 2044 132

Total Dissolved Solids 1000 1328 85

Turbidity 3.19 0.06 Nil

Total Suspended Solids 7.4 Nil Nil

Total Hardness 288 282 8.2

M. Alkalinity 255 125.56 4.1

Chlorides 362 390 7.1

Ammonical Nitrogen 1.04 0.12 11.2

Iron 1.32 Nil Nil

Phosphate 2.34 0.16 Nil

Chemical Oxygen Demand 84.3 26 Nil

Biological Oxygen Demand 10.0 Nil Nil

SDI NA < 2 Nil

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Waste water recycle plantCPCL 450 m3/hr UF plant

IOCL Panipet 1050 m3/hr UF plant

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Waste water re cycle Plants

Effluent reuse

Melbourne, Australia (1250 m3/h)

Sulaibiya, Kuwait (1500 m3/h)

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Effluent reuse

Petro China

Beijing Olympics China

Waste water re cycle Plants

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MBR Technology

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Typical MBR applications

• Thickly populated Urban areas• Capacity up gradation • Industrial complex• Shopping Malls• IT parks• Hotels and Resorts

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Permeate1.Anearobic UFRaw Waste

water

Pre-Treatment

2.Anoxic 3.Aerobic

Bioreactor

UF

1. Biological removal of P 2. De-nitrification (NO3 N2)3. Nitrification (NH4NO3) & removal of

BOD/COD

MBR Concept

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Advantages of External MBR

1. Higher Flux2. Low Energy

consumption3. Permeate Quality4. Construction

phase5. Operators

environment

Pentair Airlift MBR

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Quality of MBR product water

Pentair AirliftTM MBR has the tightest membrane pore size(MWH title 22 report, 2006)

Permeate Quality

• Turbidity of permeate: < 0.1 NTU• TSS levels: < 0.5 mg/l• BOD: < 5 mg/l• COD: < 20 mg/l• Microbial reduction - log 4 bacteria & log 6 Virus• SDI: < 3

• Highest effluent quality is an important factor for re-use purposes and future regulations

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Quality of MBR product water

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Quality of MBR product water

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Nokia 750 KLD plant March 2008

MBR Installation

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Sea Water Desalination

1. Abundance of sea water2. Reliable Source3. Sustainable solution4. Product Water to Potable

standards

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Desalination Scheme

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Desalination Reference

Palm Is lands Dubai (7700 m3/h)

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Desalination Reference

Thames Gateway (189 MLD)

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Desalination Reference

Nemmili : 222 MLD UF (Under construction)

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Conservation

Re use

Desalination

Conclusions

Resourc

es are

limite

d

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No Doubts. Pentair . Just Proof