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Moving Bed Bioreactor Plus

MAK Water’s Moving Bed Bioreactor Plus (MBBR+) type packaged sewage treatment plants are designed to treat domestic strength sewage, to achieve “Class C” treated effluent, plus enhanced nutrient removal, suitable for reuse in “risk category low” applications or for discharge to environment. With the optional “Class A” upgrade, treated effluent suitable for reuse in “risk category medium” applications is achieved.

The standard treatment process includes influent screening, balance tank mixing, anoxic & aerobic treatment for nitrification and denitrification, clarification, effluent sterilization (chlorine tablets) and bag filtration (100 micron). The optional “Class A” upgrade includes an auto-backwashing aseptic glass media filter (5 micron), secondary chlorination via tank recirculation and residual trim hypochlorite dosing, and analyzers for online monitoring of treated effluent turbidity, free chlorine and pH.

MAK Water’s MBBR+ Bioreactors are constructed of corrosion resistant FRP, and are self-contained, modular systems for easy deployment to remote locations.

The FRP bioreactor tank fits into a 40’ shipping container. This allows it to travel as general purpose cargo on a conventional container vessel, for cost effective shipping anywhere in the world, as well as providing mechanical protection from damage during shipment.

If you have specific requirements, contact us to discuss our custom designed sewage treatment plants or ask about our hire options.


Treatment capacity (min/max)m3/day22.5 / 9031.3 / 12543.8 / 17562.5 / 25075 / 300
*1Balance tank volume (recommended)m3125160250343413
*1Treated effluent tank volume (recommended)m390125175250300
Sludge tank volumem322.53250
Sludge waste volume (min/max)m3/month2.7 / 11.03.0 / 12.25.3 / 21.37.6 / 30.49.9 / 39.5
*2Irrigation pump dutym3/hr @ 500 kPa11.2515.6321.8831.2537.5
Ambient temperature (min/max)°C1 ~ 43
Power supply-AC 380~450 V, 3 Phase, 50/60 Hz
Power consumptionClass C (max)kW16.525.533.548.563.5
Class A (max)kW19.527.536.553.568.5
*2Irrigation pumpkW45.57.51115
FootprintFRP bioreactor(s) & access platform(s)m12 x 3.212 x 5.612 x 5.612 x 8.812 x 8.8
Containerised plant roomm6 x 2.4*3N/A6 x 2.4*3N/A6 x 2.4


CharacteristicsUnitsInfluent*3Class C effluent*3Class A effluent
pHpH units6.5~8.56.5~8.5
Biological oxygen demand (BOD)mg/L*5≤350<20
Suspended solids (TSS)mg/L*5≤350<30<10
Oil & greasemg/L<10-
Total nitrogen (T-N)mg/L<80<10 (or 70 mg/L reduction from influent value)
Total phosphorus (T-P)mg/L<161~2 (variable according to coagulant dose rate)
Total dissolved solids (TDS)mg/L<2,000-
TurbidityNTU-N/A<5 (95%ile)
E.Colicfu/100 mL-<1,000<10
Free chlorinemg/L-0.2~2

*1 Sold separately, *2 Optional equipment, *3 Plant room integral to FRP bioreactor, *4 Based on QLD guidelines, *5 Referenced from Metcalf & Eddy (5th edition, 2014), Typical composition of untreated domestic wastewater; higher/lower design values available on request.



✓= Standard Supply, o = Optional Supply

Automatic inlet screen (2 mm)
Influent mixing pump
Influent feed pump
FRP bioreactor with access platform & ladderAerobic zones with submersible aerators & MLR pump
Anoxic zone with submersible mixing pump
Aerobic zone 2 with submersible aerator ✓ - - - -
Clarifier with scum removal system-
Clarifier with tube settler & scum removal system ✓ ✓ ✓
Chlorine contract zone with tablet chlorinator
Bioreactor roofing (COLORBOND® steel sheeting)ooooo
Plant room with overhead lighting and GPO for maintenanceChemical dosing – coagulant, sucrose & caustic
RAS/WAS pump
Effluent transfer/filter feed pump
Class CBag filter (100 µm)
Class AAuto-backwashing aseptic glass media filter (5 μm)ooooo
Treated effluent tank recirculation pumpooooo
Residual trim hypochlorite dosingooooo
PLC control system with HMI
Sludge tank with supernatant sampling points and discharge valves
Supernatant sump with submersible pump and level controlooooo
Irrigation pump with level control and mechanical flow totaliserooooo
InstrumentationStandard package
Premium package with ClearAccess™ remote monitoringooooo


Instrumentation & ControlsStandard PackagePremium Package
Balance & chlorine contact tank float level switches-
Chemical dosing & sludge tank float level switches
Pressure switches
Pressure gauges
Magnetic flow transmitters (influent feed pump and MLR pump)
Aerobic tank dissolved oxygen analyser
Aerobic tank pH analyser
Class A onlyAseptic glass media filter pressure transmitter
Treated effluent chlorine & pH analyser
Treated effluent turbidity analyser
Variable speed drivesInfluent feed pump
MLR pump
Aeration blower
Balance & chlorine contact tank level transmitters-
ClearAccess™ remote monitoring & control capabilities-