© 2006, koch membrane systems, inc. all rights reserved. mbr technology for water reuse in...
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© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
MBR Technology for Water Reuse inMunicipal & Industrial ApplicationsMBR Technology for Water Reuse inMunicipal & Industrial Applications
Christoph KullmannBusiness Development Manager
Submerged PURON® MembranesKoch Membrane Systems
Christoph KullmannBusiness Development Manager
Submerged PURON® MembranesKoch Membrane Systems
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
Koch Membrane SystemsKoch Membrane Systems
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
MF – UF – NF – ROMF – UF – NF – RO
Hollow fiberHollow fiber SpiralSpiral TubularTubular
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
Conventional biological wastewater treatmentConventional biological wastewater treatment
SGFPCBS
= Step screen= Grid and fat removal= Primary clarifier= Biological step
STTC
= Sedimentation tank= Third cleaning step (e.g. filtration + desinfection ozon or UV)
Conventional Process
Raw wastewater
S
Effluent
TCGF PC BS ST
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
First use of membranes in biological WWTFirst use of membranes in biological WWT
SGFPCBS
= Step screen= Grid and fat removal= Primary clarifier= Biological step
STTCMT
= Sedimentation tank= Third cleaning step (e.g. filtration)= Membrane technology
Effluent treatment with membrane technology – tertiary treatment
Raw wastewater
Effluent
S GF PC ST TCBS MT
Permeate
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
Raw wastewater
S
Effluent
TCPC BS STGF
What changes if you come to an MBR?What changes if you come to an MBR?
SGFPCBS
= Step screen= Grid and fat removal= Primary clarifier= Biological step
STTC
MT
= Sedimentation tank= Third cleaning step (e.g. filtration + desinfection ozon or UV)= Membrane technology
Membrane bioreactor (MBR)
BSFS MT
Permeate
Combination of biological step and solid liquid separation
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
membrane bioreactor Membrane bioreactorMembrane bioreactor
Advantages of MBR over Conventional WWTP
Advantages of MBR over Conventional WWTP
Considerably improved water quality
Possibility for water reuse
Reduced footprint (approx. 50 %)
Avoids the problem of bulking and floating sludge
conventional plants
primary treatment
biological step clarifier
Conventional plantsConventional plants
Advantages:AdvantagesAdvantages
Lower life-cycle cost than conventional + UF for reuseLower life-cycle cost than conventional + UF for reuseLower life-cycle cost than conventional + UF for reuse
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
MBR with submerged modules - different configurations
MBR with submerged modules - different configurations
RC
RCRLMFNDN
recirculationreturn linemembrane filterNitrificationdenitrification
MFDN N
Internal submerged MBRInternal submerged MBR
RCRL
DN N MF
External submerged MBRExternal submerged MBR
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
The PURON® hollow membraneThe PURON® hollow membrane
SEM photo of pores (~10000x)
Membrane bundleMembrane bundle
SEM photo of pores (~10000x)SEM photo of pores (~10000x)
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
Modular design of PURON moduleModular design of PURON module
Fibersupport
air
Permeate
air
Permeate manifolds
air
Membrane bundleMembrane bundle Module rowModule row ModuleModule
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
The PURON® ModuleThe PURON® Module
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
Classification of membrane processesClassification of membrane processes
0,050,05
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
Comparison microorganisms – membrane poresize
Comparison microorganisms – membrane poresize
poresize ~ 0,01 µm
ultrafiltration
poresize ~ 0,2 µm
microfiltration
E. Coli ~ 0,5 - 1,5 µm
MS2-Virus (Coliphage)~ 0,025 µm
B. Subtilis~ 0,3 µm
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
MBR provides better effluent qualityMBR provides better effluent quality
MLSS content in aeration tank
Ptotal with precipitation
COD
Solids
Parameter
< 5< 20g/l
0,8 – 1,0< 0,3mg/l
40 – 50< 30mg/l
10 –150mg/l
convent. plant
MBR
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
Reduced footprintReduced footprint
Space requirements
source: D. Lawrence 2004
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
Municipal MBR Kaarst – Germany (80.000 p.e.)
Municipal MBR Kaarst – Germany (80.000 p.e.)
source: N. Engelhardt Erftverband 2004
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
Reduction of footprint by MBR technology in Kaarst (Germany, 80,000 p.e.)
Reduction of footprint by MBR technology in Kaarst (Germany, 80,000 p.e.)
Conventional plant Membrane bioreactor plant
source: N. Engelhardt Erftverband 2004
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
Market areas for MBR technologyMarket areas for MBR technology
Membranebioreactors
leachate
municipal wastewater textile
industry
industriallaundries
pulp &paper
tank cleaning
beverageindustry
dairyindustry
vegetableindustry
fruitindustry slaughter-
house /rendering
petrochem.industry
chemical industry
pharmac.industry
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
Industrial InstallationsIndustrial Installations
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
Joe White Maltings (Australia)Joe White Maltings (Australia)
• Malting industry
• PURON® MBR + MegaMagnum® RO
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
Joe White Maltings (Australia)Joe White Maltings (Australia)
ProblemProblem
• Expanding production
• Increased demand on fresh water
• Water shortage (Australia)
GoalGoal
• Water savings through partial water recycling by means of RO
• Looking for ideal pretreatment to feed the RO
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
RO Pretreatment OptionsRO Pretreatment Options
PretreatmentBacteria
& SS removal
BOD removal
Small footprint
EconomicsPrevention of
organic fouling & scaling in RO
Conventional – – – – – – –
Convent. + Tertiary 0 0 – – – –
Conv. + Tert. + UF + + + – – – + +
MBR + + + + + + + + +
+ ++ + excellentexcellent ++ goodgood 00 averageaverage – –– – poorpoor –– very poorvery poor
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
Joe White Maltings (Australia)Joe White Maltings (Australia)
Fresh water
Steeping
Pre-screening
Wastewater
buffertank
Excess sludge
ROCIP tank
Barley
DischargeProcess
BiologyUF
MBR
© 2006, Koch Membrane Systems, Inc. All rights reserved.
© 2006, Koch Membrane Systems, Inc. All rights reserved.
Joe White Maltings (Australia)Joe White Maltings (Australia)
Biological process tankBiological process tank
MegaMagnum RO® elementsMegaMagnum RO® elements
Submerged PURON® modulesSubmerged PURON® modules