Sequencing batch reactors for variable flows, batch discharge requirements, nutrient removal, and small footprint applications.
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Fill-react-settle-decant cycle in single tank eliminates need for separate clarifier and reduces footprint significantly.
Multiple batch tanks with alternating cycles accommodate highly variable inflow without process upset or biomass washout.
Anoxic fill and react phases enable denitrification without separate anoxic tank. Chemical P-removal dosing available.
Automated cycle control with adjustable fill, react, settle, and decant times based on real-time loading and effluent quality.
Hover and click components to explore SBR system details
The central nervous system of the SBR container. PLC controls full batch cycle sequencing: Fill, React, Settle, Decant, Idle with timer and DO-based phase transitions.
3mm perforated drum screen removes debris and protects downstream decanter mechanism. Automatic wash and compaction system reduces manual cleaning.
Submersible pump with float level control. Flows during Fill phase only with VFD for controlled filling rate to prevent hydraulic shock.
Pre-contact tank under anoxic conditions promotes biological phosphorus removal (Bio-P) and suppresses filamentous growth for better settling.
Urea and phosphoric acid dosing for nutrient-deficient wastewater. Maintains optimal BOD:N:P ratio at 100:5:1 for healthy microbial growth.
Flow equalisation tank for variable influent. Smooths hydraulic and organic peaks between batch cycles ensuring consistent reactor loading.
Primary batch reactor with fine bubble aeration, adjustable decanter, and sludge withdrawal. Cycles: Fill (1h), React (2-4h), Settle (1h), Decant (0.5h). Handles 50% of design flow.
Second reactor runs offset cycle for continuous effluent flow. While Reactor 1 settles/decants, Reactor 2 reacts. Ensures 24/7 discharge capability.
Adjustable weir decanter withdraws clarified supernatant without disturbing sludge blanket. Floating design follows water level during Decant phase.
Positive displacement blower with VFD for fine bubble aeration during React phase. DO-based speed control optimises energy consumption.
Auto-start standby blower for reliability. Ensures no disruption to React phase during duty blower maintenance or failure events.
Post-SBR effluent buffer. Level-controlled discharge pump ensures continuous outlet flow to sewer or reuse despite batch operation.
Withdraws excess sludge during Idle phase. Maintains MLSS at 3-5 g/L. Progressive cavity pump handles high solids content reliably.
Ferric chloride for phosphorus removal and anti-foam for high-FOG applications. Peristaltic metering pumps with day tanks and level control.
VFD-controlled pump for continuous effluent delivery. Rated for discharge head to sewer or reuse point with level-based auto-start.
Gravity thickener concentrates waste sludge to 3-4% DS for reduced disposal requirements. Simple and reliable with minimal energy requirement.
Thickened sludge storage with slow-speed mixer. Tanker connection port for off-site disposal. High-level alarm prevents overflow.
Effluent pH adjustment with inline probe and static mixer. Maintains discharge pH 6.5-8.5 for regulatory compliance at all times.
VFD drives for all pumps and blowers. IP65 enclosure with corrosion-resistant coating. Full overload and short-circuit protection.
Emergency shower and eyewash station. Chemical spill containment tray. First aid kit and fire extinguisher for operator protection.
Inlet, reactor MLSS, and effluent sampling ports. Flow-through cells for online COD and NH4 analysers with data logging.
Oil-free compressor for valve actuators and instruments. Receiver tank with dryer maintains 7 bar clean air supply.
Air conditioning for control panel room. Positive pressure prevents corrosive gas ingress into MCC and extends equipment life.
Electromagnetic flowmeter with 4-20 mA output. Records cumulative flow for regulatory compliance reporting and billing.
Post-treatment UV-C for bacterial disinfection. 4-log reduction capability. UVT monitor with auto sleeve wiper for consistent performance.
Locked cabinet for critical spare parts: decanter seals, diffuser discs, pump mechanical seals, and UV lamps for rapid maintenance.
| Parameter | 10–25 m³/h | 25–50 m³/h | 50–100 m³/h | 100–200 m³/h |
|---|---|---|---|---|
| Batch Tanks | 2× 10 m³ | 2× 20 m³ (alternating) | 3× 25 m³ | 4× 30 m³ |
| Cycle Time | 4–8 hours | 4–8 hours | 4–8 hours | 4–8 hours |
| Fill Ratio | 25–50% per cycle | 25–50% | 25–50% | 25–50% |
| Settle Phase | 30–60 minutes | 30–60 minutes | 45–90 minutes | 45–90 minutes |
| Decant System | Floating arm, level-controlled | Floating arm | Floating arm + sludge blanket | Advanced decant + blanket |
| BOD Removal | >95% | >95% | >95% | >95% |
| Nitrogen Removal | 80–90% | 85–95% | 90–95% | 90–95% |
| TSS Effluent | <15 mg/L | <15 mg/L | <10 mg/L | <10 mg/L |
| Power | 15–25 kW | 25–40 kW | 40–65 kW | 70–120 kW |
| SCADA | Tier 2: Standard | Tier 2–3: Advanced | Tier 3: Advanced | Tier 3–4: Enterprise |
Highly variable flows at holiday parks and seasonal facilities.
Villages and rural developments with limited footprint.
Temporary sewage treatment for worker accommodation camps.
Hotels and resorts with variable occupancy and discharge timing.
Combined trade effluent with batch discharge consent requirements.
Sites requiring nitrogen removal in sensitive catchments.
Pre-engineered systems installed in standard ISO shipping containers for rapid deployment. Factory-tested before dispatch with minimal site installation requirements.
Integrated sensors and PLC control provide real-time visibility into operational efficiency, enabling predictive maintenance and remote diagnostics.
Redundant safety systems and emergency shutdown protocols protect personnel and equipment in all operating conditions.
SCADA-compatible control architecture automatically adjusts parameters to match influent variations, maintaining consistent effluent quality.
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.
Standard 20ft or 40ft ISO containers with CSC certification for global shipping and road transport.
Insulation and HVAC systems maintain internal temperature for equipment protection in extreme environments.
Pre-wired control panels and pre-piped process skids. Connect inlet, outlet, and power to commence operation.
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