Self-contained sludge dewatering systems in ISO containers for reducing sludge volume at remote sites and temporary projects. Complete with screw press, polymer preparation, and cake handling â all pre-assembled with integrated controls.
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PLC monitors screw torque, cake dryness, and polymer consumption. Automated wash cycles and torque protection. Full dewatering log for optimisation.
6mm perforated screen removes debris before dewatering. Protects screw press from damage. Auto wash for continuous operation without blinding.
Progressive cavity pump for thickened sludge transfer. VFD controlled, flow 1-10 m³/hr. Dry-run protection and torque overload safety.
Storage for thickened sludge at 3-5% DS. Slow-speed mixer prevents septicity. Level-controlled feed to screw press for steady operation.
Three-chamber polymer preparation system (PPS). Auto preparation 0.1-0.5%. Powder or emulsion feed with maturation and transfer.
Progressive cavity pump for polymer to flocculation tank. Flow 0.5-20 L/hr. Flow-paced from sludge feed rate. VFD for dose optimisation.
Multi-disc screw press for continuous sludge dewatering. Produces 15-20% DS cake. Low speed, low noise, minimal wash water. Length 2.5-4.5m.
High-pressure washwater pump for screw press cleaning. Ensures no blinding and maintains permeability. Filtered supply to prevent nozzle blockage.
Storage for press washwater. Recycled filtrate or fresh water. Level-controlled with auto-refill. Heated option for cold climates.
Screw or belt conveyor transfers dewatered cake outside container. Extends 1-2m. Variable speed matched to press output. Enclosed design for odour control.
Roll-on skip for dewatered cake collection. Sealed lid for odour control. Load cells for weight recording and haulage optimisation.
Returns filtrate to WWTP inlet for reprocessing. Level-controlled sump. Non-clog design for fibrous material in filtrate.
Sump collects all filtrate and washwater. Submersible pump to WWTP. Level alarm for high water. Easy access for cleaning.
VFD drives for sludge feed, polymer, wash, and filtrate pumps. IP65 enclosure. Overload and short-circuit protection with remote monitoring.
Emergency shower and eyewash for chemical contact. First aid kit. Fire extinguisher. Chemical spill kit with absorbent for polymer spills.
Storage for spare discs, spray nozzles, and polymer pump seals. Critical spares on-site minimise downtime during maintenance.
Corrosion-resistant fan for odour control. Ducted from sludge tank and press area. Carbon filter option for sensitive locations.
Inlet sludge and cake sampling ports. DS meter for online solids measurement. Grab samples for lab verification of dewatering performance.
Fresh or recycled water for press wash. Pressure-reduced supply. Backflow prevention. Hose reel for floor and equipment cleaning.
AC for control room and polymer room cooling. Positive pressure prevents odour ingress into control panel. Essential for electronics.
Load cells on cake skip for real-time weight recording. Data to SCADA for haulage scheduling. Overweight alarm for truck limits.
Inline flocculation tank with slow-speed mixer. SS 316L construction. Ensures proper polymer-sludge contact before screw press. Retention 1-3 min.
General storage for tools, PPE, and maintenance items. Lockable door. Shelving for organisation of small parts and consumables.
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Containerised Screw Press Dewatering
The RB-C containerised sludge dewatering system delivers complete screw press dewatering capability in a portable, plug-and-play format. Pre-assembled and factory-tested in a standard 20ft or 40ft ISO shipping container, this system is ready for immediate deployment at remote sites, temporary facilities, and emergency response scenarios. All equipment â screw press, polymer preparation, flocculation tank, cake conveyor, and control panel â is integrated within the container with only sludge feed, power, and filtrate discharge connections required on site.
2.5â4.5m depending on throughput and sludge characteristics. Fits within standard 20ft or 40ft ISO container envelope with end clearance for maintenance access.
1.5m x 1.0m three-chamber PPS unit positioned for operator access and chemical delivery. Includes day tank and dosing pump within the same footprint.
Screw or belt conveyor extends 1â2m outside the container for direct loading into skips or trucks. Retractable or hinged options for transport.
1.5m minimum clearance around screw press, polymer unit, and control panel for safe operation, inspection, and component replacement.
Progressive cavity pump with VFD control. Flow 1â10 m³/hr. Handles solids up to 5% DS. Dry-run protection and torque overload safety.
Three-chamber PPS with auto preparation 0.1â0.5%. Progressive cavity pump delivery. Flow 0.5â20 L/hr. Powder or emulsion feed options.
SS 316L construction with slow-speed mixer. Retention time 1â3 minutes. Ensures proper polymer-sludge contact before screw press inlet.
Screw or belt conveyor extends outside container for direct cake discharge. Variable speed matched to press output. Enclosed for odour control.
SS 316L process piping throughout. Sludge inlet DN50âDN100. Filtrate outlet DN50âDN80. Wash water DN25. Flanged connections for easy service.
PE or SS tubing DN15âDN25. Injection point at flocculation tank inlet. Trace-heated option for emulsion polymer in cold climates.
Industrial programmable logic controller with expandable I/O. Reliable operation in container environments with temperature-compensated performance.
Colour touchscreen HMI for local operation, alarm display, trend logging, and manual override. Intuitive interface for operators.
Variable frequency drives on sludge feed pump, screw press, and cake conveyor for flow matching, energy efficiency, and soft starting.
Automated polymer dosing ratio based on sludge flow and solids. Flow-paced control with manual trim for optimisation.
Continuous screw torque measurement with high-torque alarm and automatic shutdown. Protects the press from overload and blockage.
| Parameter | Type | Range | Signal |
|---|---|---|---|
| Sludge Flow | Electromagnetic | 0â10 m³/hr | 4â20mA |
| Polymer Flow | Ultrasonic | 0â20 L/hr | 4â20mA |
| Floc Tank Level | Ultrasonic | 0â1.5m | 4â20mA |
| Screw Torque | Load cell | 0â100% | 4â20mA |
| Polymer Tank Level | Hydrostatic | 0â1.5m | 4â20mA |
Mobile sludge dewatering plants housed in ISO shipping containers, providing flexible solids handling for temporary projects, seasonal operations, and emergency sludge management. Systems include screw press dewatering, polymer conditioning, and cake handling fully integrated within a weatherproof, transportable enclosure. The RB-C range is designed for rapid deployment with minimal site preparation.
Integrated polymer station, flocculation tank, and screw press in a single containerised unit.
Road-transportable between sites with forklift pockets and corner castings for crane lifting.
Pre-commissioned at factory requiring only power, water, and sludge feed connections on site.
Fully enclosed climate-controlled container protecting equipment in all operating environments.
| Parameter | Range / Value |
|---|---|
| Cake Dryness | 15â20% solids |
| Sludge Feed Flow | 1â10 m³/hr |
| Feed Solids | Up to 5% DS |
| Polymer Dose | Auto 0.1â0.5% |
| Polymer Flow | 0.5â20 L/hr |
| Floc Tank Retention | 1â3 minutes |
| Container Size | 20ft or 40ft ISO |
| Control System | Siemens S7-1200 + 7" HMI |
| Cake Conveyor | Screw or belt, extends 1â2m |
| Materials | SS 316L, PE tubing |
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View PageOur application engineers can assess your sludge characteristics, throughput requirements, and site constraints to recommend the right RB-C containerised dewatering configuration.
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