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Membrane Bioreactor (MBR) Systems

Submerged hollow-fibre UF membrane bioreactors producing reuse-quality effluent. For high-quality discharge, direct reuse, and tight footprint applications.

Since 2016
Global Delivery
Performance Guaranteed

System Overview

Submerged Membranes

Hollow-fibre UF membranes (0.04 µm pore) submerged in bioreactor tank with vacuum permeate extraction and automatic backwash.

Reuse-Quality Effluent

TSS <1 mg/L, turbidity <0.2 NTU, bacteria-free permeate suitable for irrigation, process, or cooling tower makeup.

Tight Footprint

MBR eliminates secondary clarifier, reducing footprint by 40–60% compared to conventional activated sludge systems.

CIP System

Automated maintenance cleaning (hypochlorite) and recovery cleaning (citric acid) for sustained membrane performance.

MBR Membrane Container Layout

Hover and click components to explore MBR system details

SCADA Panel
SCADA Control

Advanced PLC with 12" HMI. Controls membrane cycles, aeration scouring, permeate pump, and CIP. Full trending and alarm history.

  • Siemens S7-1500 advanced PLC
  • 12-inch HMI with membrane status display
  • Membrane cycle timer and TMP monitoring
  • 4G remote access with data logging
  • CIP sequence control with chemical timers
S7-150012" HMITrending4G Remote
Fine Screen1mm
Fine Inlet Screen

1mm slot screen protects membranes from fibre and debris. Essential pre-treatment for MBR. Auto wash with high-pressure spray.

  • 1mm slot spacing for fibre removal
  • Automatic high-pressure wash system
  • Compaction zone reduces water content
  • SS316 construction for durability
  • Essential pre-treatment for membrane protection
1mm SlotAuto WashSS316Essential
Feed Pump
Inlet Feed Pump

Submersible pump delivers screened influent to bioreactor. VFD flow control with ultrasonic level sensor.

  • Submersible design for wet well
  • VFD for flow pacing to bioreactor
  • Ultrasonic level sensor control
  • SS316 construction for corrosion
  • Dry-run protection included
SubmersibleVFDLevel Ctrl
Anoxic ZoneDenitrification
Anoxic Denitrification

Pre-denitrification with submersible mixer. Nitrified liquor recycled from membrane tank. ORP-controlled.

  • Pre-denitrification for TN removal
  • Nitrified liquor recirculation from MBR
  • ORP control at -100 to +50 mV
  • Submersible mixer only — no aeration
  • Internal recycle with flow control
ORP CtrlMixer OnlyN-Recycle-100 mV
Aerobic Bio.BOD + Nitrify
Aerobic Bioreactor

Activated sludge with fine bubble aeration. MLSS 8-12 g/L. Coarse bubble for membrane scouring.

  • Activated sludge with MLSS 8-12 g/L
  • Fine bubble diffusers for oxygen transfer
  • Coarse bubble for membrane scouring
  • DO control at 1-2 mg/L setpoint
  • 90%+ BOD removal at design loading
MLSS 8-12Fine BubbleDO 1-290%+ BOD
MBR MembraneFlat-Sheet / HF
MBR Membrane Module

Submerged flat-sheet or hollow-fibre membranes with 0.04 um pore size. Direct filtration eliminates clarifier. Flux 15-30 LMH.

  • 0.04 um pore size for absolute filtration
  • Flat-sheet or hollow-fibre options
  • Flux rate 15-30 LMH design
  • Coarse bubble scouring prevents fouling
  • No secondary clarifier needed
0.04 umFlux 15-30Coarse ScourNo Clarifier
Permeate Tank
Permeate Storage

Stores filtered permeate before discharge or reuse. Level-controlled permeate pump. UV post-treatment option.

  • Permeate storage before discharge
  • Level-controlled pump to reuse line
  • UV post-treatment connection point
  • SS304 construction with level sensor
  • Under 5 mg/L TSS guaranteed
<5 mg/L TSSLevel CtrlSS304
Permeate Pump
Permeate Pump

Centrifugal or self-priming pump draws filtrate through membrane. Vacuum sensor monitored. Variable flux control.

  • Self-priming centrifugal design
  • Vacuum sensor for TMP monitoring
  • Variable flux control from PLC
  • SS316 construction for corrosion
  • Dry-run and cavitation protection
Vacuum CtrlVar. FluxSS316
Blower Duty
Duty Process Blower

PD blower for fine bubble diffusers. VFD controlled for DO optimisation. Sound-insulated enclosure.

  • PD blower for fine bubble diffusers
  • VFD speed control from DO signal
  • Sound-insulated enclosure
  • Air filter and pressure relief
  • Vibration isolation mounts
PD BlowerVFDDO Ctrl<72 dB
Scour Blower
Membrane Scour Blower

Dedicated coarse bubble blower for membrane surface scouring. Prevents fouling by creating upward shear.

  • Coarse bubble for membrane scouring
  • Prevents biofilm fouling on membrane
  • Creates upward shear across surface
  • Continuous operation during permeation
  • Separate from process aeration
Coarse BubbleAnti-FoulShear Flow
CIP TankNaOCl/Citric
Clean-In-Place Tank

Stores NaOCl (maintenance clean) and citric acid (recovery clean) for automated membrane CIP cycles.

  • Sodium hypochlorite for maintenance clean
  • Citric acid for recovery clean
  • Automated PLC-controlled CIP cycles
  • Level sensors with low-level alarm
  • Dosing pumps with flow verification
NaOClCitric AcidAuto CIP
WAS Pump
Waste Sludge Pump

Controls SRT by wasting excess sludge. Timed operation maintains MLSS at target 8-12 g/L.

  • SRT control via timed wasting
  • Maintains MLSS 8-12 g/L target
  • SS316 construction for biomass
  • Flow totaliser for mass balance
SRT CtrlTimedSS316
Chemical Dose
Chemical Dosing

Coagulant for P-removal and anti-foam agent. Peristaltic pumps with day tanks and level switches.

  • Coagulant for phosphorus precipitation
  • Anti-foam agent for high-foam influent
  • Peristaltic metering pumps
  • Day tanks with level switches
  • Flow-paced dosing control
CoagulantAnti-FoamPeristalticAuto-Dose
Nutrients
Nutrient Dosing

Urea and phosphoric acid for nutrient-deficient influent. Maintains optimal BOD:N:P ratio.

  • Urea for nitrogen supplementation
  • Phosphoric acid for phosphorus
  • 100:5:1 BOD:N:P ratio maintained
  • Flow-paced dosing control
UreaH3PO4100:5:1
Discharge
Effluent Discharge Pump

Final treated water delivery pump. VFD controlled. Pressure-rated for reuse or sewer discharge.

  • Centrifugal pump for permeate discharge
  • VFD for variable demand matching
  • Rated for reuse pressure requirements
  • SS316 construction for corrosion
VFDRated HeadSS316
pH
pH Correction

Final effluent pH adjustment for compliance.

  • Inline pH probe with auto-clean
  • Acid/alkali closed-loop control
  • Maintains pH 6.5-8.5
pH 6.5-8.5
Thickener
Sludge Thickener

Gravity thickener concentrates waste sludge from 1% to 3-4% DS. Reduces downstream dewatering load.

  • Gravity thickening for WAS
  • Concentrates from 1% to 3-4% DS
  • Reduces dewatering volume and cost
  • SS316 construction for corrosion
Gravity3-4% DSSS316
Sludge Tank
Sludge Holding Tank

Thickened sludge storage with slow-speed mixer. Tanker connection for disposal. Level alarm.

  • Thickened sludge storage
  • Slow-speed mixer prevents consolidation
  • Tanker connection for licensed disposal
  • Level alarm and overflow protection
MixerTanker PortLevel Alarm
Instr. Air
Instrument Air

Oil-free compressor for pneumatic valve actuation and instrument air. Receiver tank and dryer included.

  • Oil-free scroll compressor
  • Air receiver with pressure gauge
  • Refrigerated air dryer included
  • 7 bar supply for valve actuators
Oil-FreeReceiverDryer7 bar
MCC Panel
Motor Control Centre

VFD drives for permeate, sludge, and CIP pumps. Blower starters with overload protection. IP65 rated.

  • VFD drives for all pumps
  • Blower DOL starters
  • Overload and short-circuit protection
  • IP65 enclosure with ventilation
VFD DrivesIP65Ventilated
Sampling
Sample Point Cabinet

Inlet, MLSS, permeate, and effluent sampling. Online analysers for COD, NH4-N, and TSS monitoring.

  • Inlet, MLSS, permeate sampling points
  • Online COD analyser cell
  • Ammonium (NH4-N) probe
  • TSS online monitoring
COD/NH4/TSSOnlineFlow Cell
Safety
Safety Equipment

Emergency shower and eyewash. Chemical spill containment. Fire safety equipment.

  • Emergency shower with tempered water
  • Eye wash station with foot pedal
  • Chemical spill containment tray
  • Fire extinguisher and first aid
EmergencySpill TrayFire Exting.
HVAC
Climate Control

Air conditioning for SCADA panel and electrical room. Positive pressure ventilation prevents corrosive gas ingress.

  • Split-type air conditioning unit
  • Positive pressure ventilation
  • Prevents corrosive gas ingress
  • Temperature alarm to SCADA
AC UnitPos. PressureCorrosion Res.
Flowmeter
Magnetic Flowmeter

Non-intrusive electromagnetic flowmeter. 4-20 mA output to SCADA. Cumulative flow totaliser.

  • Electromagnetic non-intrusive design
  • 4-20mA output to SCADA system
  • Cumulative flow totaliser
  • DN50 to DN150 sizes available
4-20 mATotaliserDN50-DN150
UV Reactor
UV-C Disinfection

Post-treatment UV-C for permeate. 4-log pathogen reduction. UVT sensor with auto sleeve wiping.

  • Medium-pressure UV-C lamps
  • 4-log pathogen reduction guarantee
  • UVT sensor for dose verification
  • Auto sleeve wiper prevents fouling
  • Reuse-quality effluent output
4-LogUVT SensorAuto Wiper254 nm
SCADA/MCC
MBR Membrane
Bioreactor
Aeration
Chemicals
Pumps
Sludge
UV

Detailed Process Specifications

Parameter10–25 m³/h25–50 m³/h50–100 m³/h100–200 m³/h
Membrane TypeHollow-fibre UF, 0.04 µmHollow-fibre UF, 0.04 µmHollow-fibre UF, 0.04 µmHollow-fibre UF, 0.04 µm
Membrane Cassettes1–22–44–88–16 (2 trains)
Flux Rate15–25 LMH15–25 LMH15–25 LMH15–25 LMH
TMP Range-0.1 to -0.4 bar-0.1 to -0.4 bar-0.1 to -0.4 bar-0.1 to -0.4 bar
MLSS8–12 g/L8–12 g/L10–15 g/L10–15 g/L
Effluent TSS<1 mg/L<1 mg/L<1 mg/L<1 mg/L
Effluent Turbidity<0.2 NTU<0.2 NTU<0.2 NTU<0.2 NTU
CIP ChemicalsNaOCl + citric acidNaOCl + citric acidNaOCl + citric + causticFull CIP suite per train
Power20–35 kW35–55 kW60–100 kW120–200 kW
SCADATier 2–3: AdvancedTier 3: AdvancedTier 3–4: EnterpriseTier 4: DCS

Typical Applications

Water Reuse

Irrigation, process water, and cooling tower makeup from treated wastewater.

Urban Retrofit

Space-constrained municipal upgrades replacing aging clarifiers.

Industrial Discharge

High-quality effluent meeting strict discharge consent limits.

Hospitality & Resorts

On-site sewage treatment with water reuse for landscaping and flushing.

Remote Sites

Mining camps, construction sites, and temporary facilities.

Sensitive Receivers

Discharge to ecologically sensitive waterways requiring low nutrient output.

Related Process Trains

MBBR/MBR/SBR

Alternative biological configurations for different flow patterns.

RO Concentration

RO post-treatment for TDS reduction after MBR permeate.

SBR

For variable flows and batch discharge requirements.

Operating Principle

Process Mechanism

Pre-engineered systems installed in standard ISO shipping containers for rapid deployment. Factory-tested before dispatch with minimal site installation requirements.

Performance Monitoring

Integrated sensors and PLC control provide real-time visibility into operational efficiency, enabling predictive maintenance and remote diagnostics.

Fail-Safe Design

Redundant safety systems and emergency shutdown protocols protect personnel and equipment in all operating conditions.

Adaptive Control

SCADA-compatible control architecture automatically adjusts parameters to match influent variations, maintaining consistent effluent quality.

Construction & Materials

Manufactured inside reinforced ISO shipping containers with climate control, lighting, and spill containment. All process equipment is skid-mounted and pre-piped for plug-and-play operation. Container modifications include personnel doors, ventilation, and lifting lugs for rapid deployment and relocation.

ISO Container

Standard 20ft or 40ft ISO containers with CSC certification for global shipping and road transport.

Climate Control

Insulation and HVAC systems maintain internal temperature for equipment protection in extreme environments.

Plug & Play

Pre-wired control panels and pre-piped process skids. Connect inlet, outlet, and power to commence operation.

Related Pages & Equipment

Equipment Catalogue

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Dissolved air flotation for solids and oil separation.

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Lamella Clarifiers

High-rate settling for primary and secondary clarification.

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Biological Treatment

Activated sludge, MBBR, and SBR systems for organic removal.

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Sludge Dewatering

Belt press, centrifuge, and screw press dewatering.

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Chemical Dosing

Automated coagulant, flocculant, and pH correction systems.

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Pilot Testing

Validate process performance with on-site pilot trials.

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Speak to Our Engineers

Request a consultation or quotation for your project.

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Aeration & Oxygen Transfer

Aeration accounts for 50–70 % of a biological plant’s electrical Operating expenditure — designing it well is the single largest lifetime saving.

Need Detailed Specifications?

Our engineers provide detailed P&ID drawings, container layouts, and equipment specifications for your selected Process.

Industries We Serve

Our expertise spans multiple industries with sector-specific water treatment solutions.