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Advances in Membrane Bioreactors
Introduction
Q4 2018
Jeff Cumin, Global Product ManagerOakville, Ontario, Canada
contents
Advances in Membrane Bioreactors
1 MBR quick review
2 MACmbr – MACarrier membrane bioreactor
3 AnMBR – Anaerobic Membrane Bioreactor
Advances in Membrane Bioreactors 2 I
MBR quick review
Advances in Membrane Bioreactors 3 I
Simplifying Wastewater Treatment
• Replaces conventional clarification, aeration and filtration
• Combines the physical barrier characteristics of a membrane with biological treatment
• Produces high quality effluent at all times
Advances in Membrane Bioreactors 4 I
Cost
ReliabilityAchieves secondary
and tertiary treatment
in one compact step Effluent Quality
Footprint
Advantages of MBR Technology vs. CAS
Advances in Membrane Bioreactors 5 I
MACmbr Technology
Advances in Membrane Bioreactors 6 I
Advances in Membrane Bioreactors 7 I
MACmbr Technology
• Addition of carbon-based MACarrier to the mixed
liquor in an MBR
• Enhance removal of organics, including:
• recalcitrant COD
• toxic compounds
• micro-pollutants, PPCPs
• MACarrier provides sites for adsorption as well as
attachment for biomass
• The biomass degrades the adsorbed COD and then
regenerates the MACarrier
• The dose of MACarrier is adjusted to maintain the
target concentration in the biomass (~1000 -2000 mg/l)
Advances in Membrane Bioreactors 8 I
MACmbr Technology
• Solves challenge of stringent COD
discharge requirements while
enhancing process stabilization
• Robust & reliable solution to
enhance biological process stability
combined with proven MBR
technology
• Lowest cost of ownership vs.
competing technologies (post-
treatment)
Advances in Membrane Bioreactors 9 I
MACmbr
Applications:
• Initial application was refining in
China and Russia … stringent COD
limits for direct discharge
• Pharmaceutical… recalcitrant
organics removal
• Textile, F&B… color removal
• Microelectronics… process
stabilization
• Municipal …. micro-pollutant
removal, pharmaceuticals and
personal care products (PPCP)
MBR with MACarrier Summary
• Enhanced removal of organics, including
recalcitrant COD, toxic compounds, and
micro-pollutants
• Solves problems of stringent COD
requirements for discharge or reuse,
process stabilization, color removal, and
micro-pollutant removal.
• Robust & reliable solution: biological
process stability, proven MBR technology
• Lowest cost of ownership vs. competing
technologies (post treatment of CAS)
Advances in Membrane Bioreactors 10 I
AnMBR – Anaerobic Membrane Bioreactor
Advances in Membrane Bioreactors 11 I
Why Anaerobic Treatment?
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• No Biological oxygen required (energy +)
• Methane rich biogas generation (energy+)
• Reduced sludge production
• Reduced footprint (high OLR)
Advances in Membrane Bioreactors 12 I
Conventional Anaerobic Digester Process
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Advances in Membrane Bioreactors 13 I
Why Membranes?
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• Membranes continuously remove water from the digester whileretaining biomass and organics reducing required digestervolume – smaller footprint.
• Membrane filtration results in a superior effluent quality with nosuspended solids in the permeate.
• Conventional anaerobic processes have retention challengesand often suffer upsets discharging untreated water.
• Prevent methanogens (active biomass) in the reactor fromwashing out during upsets for fast recovery from changes inloading conditions.
• Separate SRT from HRT for a more robust and reliablebiological process.
Advances in Membrane Bioreactors 14 I
Anaerobic Membrane Bioreactor Process
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Biogas Out
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Advances in Membrane Bioreactors 15 I
ZeeWeed Anaerobic MBR
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• Strength - Reinforced hollow fibre braid
• PVDF membrane - developed for wastewater
• Experience - 20 years of proven performance
• Leverages - leadership in MBR plant design
Advances in Membrane Bioreactors 16 I
ZeeWeed AnMBR Pilot Results at Brewery
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Parameters Unit Pilot
Ap
plic
atio
n
WW Type Brewery
Full Scale Flow MLD 0.8
Influent COD P1 mg/L 5000 - 10000
Influent COD P2 mg/L 5000 - 15000
Existing AD type Clarifier-UASB
Pro
ce
ss C
on
ditio
ns
Pilot Flow rate LD 2452
Net Flux P1 LMH (GFD) 10 (6)
Net Flux P2 LMH (GFD) 5 (3)
OLR kg COD/m3/d 6+
HRT hrs 24
SRT days 30+
Bioreactor MLSS g/L 15
Influent TSS mg/L 600 - 4000
Resu
lts
Effluent COD mg/L <200
Effluent BOD mg/L NA
Effluent TSS mg/L <5
COD Removal % 95+
Phase 1 Phase 2
Advances in Membrane Bioreactors 17 I
• Methane rich biogas can be used as a
renewable, storable, source of energy for
heat and power.
• Superior effluent quality and reliability
utilizing ZeeWeed Membranes
• No biological oxygen required reducing
energy costs
• Modular scalable system design, minimize
onsite construction
• Retrofit upgrade for existing anaerobic
digestion systems enabling water reuse.
• Leverages over 20 years of experience
and leadership in MBR plant design.
ZeeWeed AnMBR Summary
Advances in Membrane Bioreactors 18 I
