Seven containerised oil separation technologies from coalescing plate interceptors to electrocoagulation. Performance specs, footprints, and selection for 10–200 m³/h.
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Coalescing plate interceptors for free oil removal (90–97%) with compact 0.5–5.0 m³ footprints.
High-rate DAF for emulsified oil and TSS with 95–99% removal in 5–40 m² footprints.
Gravity-driven API separators for heavy oils and high-flow (50–200 m³/h) with 5–15 m³ footprints.
Sacrificial electrode systems for emulsified oil (95–99%) and heavy metals.
Hover and click components to explore oil separation details
PLC monitors oil layer thickness, effluent quality, and pump status. Automated skimming cycles with level-based activation. Full oil removal log for compliance.
6mm bar screen removes debris and large solids before oil separation. Protects downstream CPI and DAF units from damage and blockages.
Submersible pump with float control for oil-contaminated wastewater. VFD for flow matching. Dry-run protection extends pump life.
Corrugated Plate Interceptor uses coalescing plate packs to separate free oil from water. Achieves less than 5 mg/L free oil. SS316 plates for long life.
Dissolved Air Flotation removes emulsified oil and fine suspended solids. Recycled water saturation with micro-bubbles for efficient separation.
Collection tank for separated oil and float. Level alarm for pump-out notification. Heated option for high-viscosity oil to aid pumping.
Chemical dosing to break oil-water emulsions. Peristaltic pump with flow-paced control. Day tank with mixer for consistent chemical strength.
Positive displacement pump for viscous oil skimmings. Transfers to storage or disposal. Auto-start on high level in skimmings tank.
Tank for recovered oil awaiting disposal or recycling. Secondary containment bund. Level indicator with high-level alarm for overflow prevention.
Floor sump collects all leaks and washdown. Pump to CPI inlet for reprocessing. Ensures no oil escapes to environment.
Clean water effluent pump after oil removal. VFD-controlled for flow matching. Low oil content protects pump seals.
Inline pH probe and mixer for final effluent pH correction. Acid or caustic dosing to meet discharge limits of pH 6.5-8.5.
UV fluorescence oil-in-water analyser. Continuous measurement with 4-20 mA output. Alarm on oil breakthrough exceeding setpoint.
Final treated water discharge point. Sample tap for grab sampling. Flow totaliser records cumulative discharge volume.
Starters and VFD drives for all pumps. IP65 enclosure with oil-resistant coating. Overload and short-circuit protection for all motors.
Emergency shower and eyewash for oil contact. Fire extinguisher for oil fires. Spill kit with absorbent materials for oil containment.
Storage for spare plate packs, pump seals, and CPI gaskets. Critical spares ensure minimal downtime during maintenance events.
Explosion-rated extraction fan for oil vapour removal. 10 air changes per hour. Vapour alarm for hydrocarbon detection and safety.
Inlet and effluent sampling ports. Inline flow-through cell for oil-in-water analyser. Grab sample taps for lab verification.
Pressure-reduced water for floor and equipment cleaning. Drains to sump for reprocessing. Hose reel with trigger gun for operator use.
AC unit for control room cooling. Positive pressure prevents oil vapour ingress. Essential in hot climates for electronics reliability.
Polymer dosing for DAF flotation enhancement. Two-stage make-down with maturation. Progressive cavity pump for viscous polymer solution.
Progressive cavity pump for polymer to DAF. Speed controlled by PLC for dose adjustment. Calibration column for rate verification.
General storage for tools, PPE, and maintenance items. Shelving and hooks for organisation. Lockable door for security.
| Technology | CPI | Corrugated Plate | API Separator | DAF | Hydrocyclone | UF Membrane | Electrocoagulation |
|---|---|---|---|---|---|---|---|
| Flow Range | 10–100 m³/h | 10–200 m³/h | 50–200 m³/h | 10–200 m³/h | 25–200 m³/h | 10–50 m³/h | 10–200 m³/h |
| Oil Removal | 90–95% free | 90–97% free | 85–90% free | 95–99% emulsified | 90–95% free | 99.9% all oil | 95–99% emulsified |
| Footprint | 0.5–2.5 m³ | 1.0–5.0 m³ | 5–15 m³ | 5–40 m² | 0.2–1.0 m³ | 1–3 m² | 1–4 m² |
| Container | 20ft/40ft | 20ft/40ft | Dedicated/external | 40ft HC core | Any container | Post-MBR | 40ft HC skid |
| Best For | Light oils | Medium oils | Heavy oils, high flow | Emulsified + TSS | High free oil | Polishing | Emulsified + metals |
| Power | Minimal | Minimal | Minimal | 15–85 kW | 5–15 kW | 10–25 kW | 12–160 kW |
Free oil from process water and tank farm runoff.
Oil and grease from truck and equipment washing.
Tramp oil from machining coolants.
FOG from meat and dairy wastewater.
Runoff from petrol stations and tank farms.
Bilge water and deck wash treatment.
This treatment stage is engineered to achieve specific contaminant removal targets while providing stable, predictable performance across variable inlet conditions. Design parameters are calculated from wastewater characterisation data, regulatory requirements, and site-specific constraints including footprint, energy availability, and operator capability.
Design validated by CFD modelling and pilot testing to confirm performance guarantees.
Equipment selected for 20-year design life with minimal wearing parts and easy access.
Automated dosing and feedback control minimise reagent consumption and sludge production.
Online monitoring and data logging demonstrate continuous consent compliance.
| Design Flow | 10 – 5,000 m³/h (application specific) |
| Inlet Variability | Designed for 1:3 peak-to-average flow ratio |
| Removal Efficiency | 85 – 99% depending on target contaminant |
| Hydraulic Retention | Calculated from kinetic constants and safety factors |
| Power Consumption | 0.5 – 5.0 kWh/100 m³ (process dependent) |
| Chemical Dose | Auto-controlled based on online analysers |
| Sludge Production | 0.2 – 1.5 kg DS/kg contaminant removed |
| Materials | SS304, SS316L, or carbon steel with coating |
No treatment stage operates in isolation. This process is designed to receive conditioned influent from upstream stages and deliver effluent quality suitable for downstream processes. Hydraulic and organic loading rates are balanced across the complete treatment train to prevent bottlenecking and ensure overall plant efficiency. Our engineers model the complete flowsheet to optimise Capital expenditure and Operating expenditure across the plant lifecycle.
Screening, equalisation, and pre-treatment protect this stage from damage and overload.
Effluent quality ensures downstream biology, filtration, or disinfection performs optimally.
Reject streams, filtrate, and centrate are routed back to appropriate upstream points.
Our engineers provide detailed P&ID drawings, container layouts, and equipment specifications for your selected Process.
Our expertise spans multiple industries with sector-specific water treatment solutions.