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Moving Bed Bioreactor

MAK Water’s Moving Bed Bioreactor (MBBR) type packaged sewage treatment plants are designed to treat domestic strength sewage, to achieve “Class C” treated effluent, 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, aerobic treatment, clarification and effluent disinfection (chlorine tablets). The optional “Class A” upgrade includes an auto-backwashing glass media filter, secondary chlorination via tank recirculation and residual trim hypochlorite dosing, and analysers 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.

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


Parameter Units MBBR-125 MBBR-150 MBBR-200 MBBR-250 MBBR-300
Treatment capacity  m3/day 125 150 200 250 300
*1Balance tank volume (recommended) m3 125 150 200 250 300
*1Treated effluent tank volume (*2minimum) m3 9 11 14 18 21
Sludge tank volume  m3 30 30 50 50 2 x 30
Thickened sludge waste volume m3/day 1.9 2.3 2.9 3.6 4.3
*3Irrigation pump duty m3/hr @ 350 kPa 10.4 12.5 16.7 20.1 25
Ambient temperature (min/max) °C 1/43 (-15/50 with optional container insulation)
Power supply  - AC 415 V, 3 Phase, 50 Hz
Power consumption  Class C (max)  kW 28 35 40 49 58
Class A (max)  kW 35 41 47 56 65
*3Irrigation pump  kW 2.2 3 4 5.5 5.5
Footprint  FRP bioreactor(s) & access platform(s) 7.4 x 4.2 8.8 x 4.2 11.4 x 4.2 7.4 x 7.6 8.8 x 7.6
Containerised plant room 6 x 2.4 (ISO 20’)
Sludge tank(s) Øm 4 4 4.5 4.5 2 x 4


Characteristics Units  Influent  *4Class C effluent  *4Class A Effluent 
Temperature °C 15~35 -
pH pH units 6.5~8.5 6.5~8.5
Biological oxygen demand (BOD)  mg/L *5≤350  <20
Suspended solids (TSS) mg/L *5≤350  <30
Oil & grease mg/L <10 -
Total nitrogen (T-N) mg/L ≥20 N/A (no reduction)
Total phosphorus (T-P) mg/L <16 4~12 (variable according to coagulant dose rate)
Total dissolved solids (TDS) mg/L <2,000 -
Turbidity NTU - N/A <5 (95%ile)
E.Coli cfu/100 mL - <1,000 <10
Free chlorine mg/L - 0.2~2

*1Sold separately, *2For 15 contact time, *3Optional equipment, *4Based on QLD guidelines, *5Referenced from Metcalf & Eddy (5th edition, 2014), typical composition of untreated domestic wastewater; higher/lower design values available on request.


✓= Standard Supply, o = Optional Supply

Equipment MBBR-125 MBBR-150 MBBR-200 MBBR-250 MBBR-300
Automatic inlet screen (2mm)
Influent mixing pump
Influent feed pump
FRP bioreactor(s) with aluminium access platform(s) & ladder(s) Aerobic zone with floating media & blower
Clarifier with scum removal system
Buffer zone/tank with tablet chlorinator 
Bioreactor roofing (COLORBOND® steel sheeting) o o o o o
Containerised plant room with air conditioning, overhead lighting & GPO
for maintenance 
Chemical dosing – coagulant
RAS/WAS pump
Effluent transfer/filter feed (& backwash) pump
Class A only Auto-backwashing media filter o o o o o
Treated effluent tank recirculation pump    o o o o o
Hypochlorite dosing o o o o o
PLC control system with HMI
Plant room insulation o o o o o
Sludge tank with supernatant sampling points & discharge valves
Supernatant sump with submersible pump & level control o o o o o
Irrigation pump with level control & mechanical flow totaliser o o o o o
Instrumentation  Standard package
Premium package with ClearAccess remote monitoring  o o o o o


Instrumentation & Controls Standard Package Premium Package
Level switches Balance tank -
Sludge tank
Chemical dosing tank(s)
Supernatant sump (optional)
Level transmitters Balance tank -
Buffer tank
Treated effluent tank
Flow switches Effluent transfer pump (Class C) -
Treated effluent recirculation pump (Class A) -
Irrigation pump (optional) -
Pressure switches Balance tank mixing pump
Pressure indicators Balance tank mixing pump
Influent feed pump
Blower discharge -
RAS/WAS pump
Effluent transfer pump (Class C)
Media filter feed pump (Class A) -
Media filter discharge (Class A) -
Irrigation pump (optional)
Treated effluent recirculation pump (Class A)
Pressure transmitter Media filter feed pump (Class A) -
Media filter discharge (Class A) -
Magnetic flow transmitter Influent feed pump
Mechanical flow totaliser Irrigation pump (optional)
Free chlorine and pH analyser (Class A) 
Turbidity analyser (Class A) 
ClearAccess remote monitoring & control capabilities -