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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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Biogas Out

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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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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

17

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

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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

Questions?

jeffrey.cumin@suez.com

Advances in Membrane Bioreactors 19 I