UK HQ Your time

Electrocoagulation (EC) + Filtration

Sacrificial Al/Fe electrode systems for heavy metals, emulsified oils, colloidal solids, and paint wastewater. No bulk chemical coagulant required.

Request Technical Proposal View Product Catalogue
Since 2016
Global Delivery
Performance Guaranteed

Containerised Systems

Explore our full range of containerised treatment options.

Wastewater Options

Browse all containerised wastewater treatment technologies.

Request Quotation

Get a firm quotation for your containerised system.

Engineering Services

Design, build, and commissioning services for container plants.
Non-Biological

System Overview

EC Reactor

Sacrificial Al/Fe electrodes (5–15 min RT) with automated polarity reversal and electrode consumption tracking.

Metal Hydroxide Flocculation

In-situ Al/Fe hydroxide generation creates dense floc with superior settling compared to alum coagulation.

Clarification + Filtration

Lamella clarifier or DAF for separation, followed by dual-media filtration and GAC polishing.

pH Optimisation

Automated acid dosing (pH 6–7 for EC) and caustic post-neutralisation for compliant discharge.

Specifications

Detailed Process Specifications

Parameter10–25 m³/h25–50 m³/h50–100 m³/h100–200 m³/h
EC Reactor1 cell, 5–15 min RT2× parallel cells4× parallel cellsMulti-train 4× per stream
Electrode MaterialAluminium or IronAl/Fe selectableAl/Fe selectable per cellAl/Fe selectable per train
Current Density10–50 A/m²10–50 A/m²10–50 A/m²10–50 A/m² with VFD
Emulsified Oil Removal95–99%95–99%95–99%95–99%
Heavy Metals Removal95–99% (Cr, Cu, Zn, Ni, Pb)95–99%95–99%95–99%
TSS Removal85–95% inlet 100–1000 mg/L85–95%90–97%90–97%
Sludge Density2–4% solids (metal hydroxide)2–4% solids3–5% solids3–5% solids
Power12–20 kW per cell25–40 kW50–80 kW100–160 kW
DosingAcid, caustic, antifoam, polymerAcid, caustic, polymerFull suite + antiscalantCentralised chemical farm
SCADATier 2–3: AdvancedTier 3: AdvancedTier 3–4: EnterpriseTier 4: DCS
Applications

Typical Applications

Paint Wastewater

Paint booth washwaters with pigments, resins, and solvents.

Vehicle Wash

Heavy equipment and truck washwaters with oil and grease.

Metal Finishing

Plating rinse waters, pickling baths, and metalworking fluids.

Landfill Leachate

Pre-treatment for organics and metals before biological or membrane stages.

Chemical Blending

Tank farm washdowns and drum cleaning with mixed chemical residues.

Emulsified Oil

Stable oil emulsions that resist conventional DAF separation.

Related

Related Process Trains

DAF Physico-Chemical

For free oil and medium-TSS where chemical coagulation is sufficient.

Chemical Precipitation

For phosphorus and hydroxide precipitation as companion to EC.

Hybrid (EC+AOP)

For complex waste with metals, organics, and emulsified oils combined.

Datasheet

Equipment List & Specifications

Complete equipment inventory for Option H — Electrocoagulation (EC) + Filtration. Process train: No | SCADA: Tier 2–4

Special Safety Notes

ATEX for EC Hâ‚‚ zone, electrode interlocks, DC isolation

Mechanical Equipment

Item CodeDescriptionQtySpec / NotesLocation
H-ME-01Inlet screen13–6 mm, manual or automaticInlet
H-ME-02Equalization tank (EQ)14–8 m³, PE or SS316L, mixingEQ
H-ME-03EC reactor cell(s)1–4SS316L or coated CS, Al or Fe electrodes (sacrificial), plate or tubular geometry, 5–15 min RT, DC 10–50 A/m²EC
H-ME-04Electrode stack / rack1 setRemovable, quick-connect for replacement, Al/Fe selectable per cellEC
H-ME-05Flocculation / coagulation tank1Gentle mixing, 5–15 min RT, PE or SS316LPost-EC
H-ME-06Clarifier (lamella or DAF)1SS316L, 5–20 m²Clarifier
H-ME-07Filtration (dual-media or disc)1Sand + anthracite or woven mesh, 0.5–1.5 m²Filtration
H-ME-08GAC polishing vessel (optional)10.5–1.5 m³, downflowPolishing
H-ME-09pH correction tank1Rapid mix, 1–3 m³, PE or SS316LPost-treatment

Pumps

Item CodeDescriptionQtySpecDriver
H-PU-01Inlet lift pump21 duty + 1 standbyVFD
H-PU-02EQ recirculation / transfer pump21 duty + 1 standbyFixed
H-PU-03Post-EC transfer pump21 duty + 1 standby, SS316LFixed
H-PU-04Clarifier sludge pump1Progressive cavityFixed
H-PU-05Filtration feed pump1Centrifugal, 1–5 barFixed
H-PU-06GAC backwash pump1Centrifugal, 2–3– normal flowFixed
H-PU-07Effluent discharge pump21 duty + 1 standbyFixed/VFD
H-PU-08Acid dosing pump1Diaphragm, 5–20 L/hFixed
H-PU-09Caustic dosing pump1Diaphragm, 5–50 L/hFixed
H-PU-10Polymer dosing pump1Diaphragm, 1–20 L/hFixed

Sensors & Instrumentation

Item CodeDescriptionQtyRange / OutputTier
H-SI-01Inlet / outlet flow meter2Magnetic or ultrasonicAll
H-SI-02pH (inlet / EQ / outlet)30–14 pHAll
H-SI-03Current density (EC cell)1 per cell0–50 A/m², DC ammeter, 4–20 mATier 2+
H-SI-04Voltage (EC cell)1 per cell0–30 VDC, 4–20 mATier 2+
H-SI-05Conductivity (EC inlet & outlet)20–50 mS/cmTier 2+
H-SI-06ORP (EC cell)1-1000 to +1000 mVTier 3
H-SI-07Temperature (EC cell)1PT100, -10 to 80°CTier 2+
H-SI-08Sludge level (clarifier)1UltrasonicTier 2+
H-SI-09Turbidity (outlet)10–100 NTUTier 2+
H-SI-10TSS online (optional)1Optical or ultrasonicTier 3
H-SI-11Level (all tanks)5–6Ultrasonic / hydrostaticAll

Dosing Systems

Item CodeDescriptionQtySpecNotes
H-DS-01Acid (pH 5–7 for EC)1Diaphragm, 10–100 L/h
H-DS-02Caustic (neutralisation)1Diaphragm, 10–200 L/h
H-DS-03Polymer (flocculation aid)1Diaphragm, 1–20 L/h
H-DS-04Antifoam (if required)1Diaphragm, 1–10 L/h
H-DS-05Day tanks3–4200–500 L, PE, bunded

SCADA / Control Hardware

Item CodeDescriptionQtySpecTier
H-SC-01PLC1S7-1200 or S7-1500Tier 2–4
H-SC-02HMI110–15", IP65Tier 2–4
H-SC-03EC rectifier controller1DC output control, current/voltage feedback, ModbusTier 2+
H-SC-04Auto-polarity reversal (if applicable)1Timer or sensor-basedTier 3
H-SC-05Electrode consumption monitoring1Amp-hour meter, replacement alarmTier 3
H-SC-06Remote I/O2–3DistributedTier 3
H-SC-074G / WiFi router1Industrial, VPNTier 3
H-SC-08UPS11.5–2 kVATier 3
H-SC-09MCC / control room1SS304, IP55, air-conditioned, positive pressureTier 3–4

Auxiliary Equipment

Item CodeDescriptionQtySpec
H-AU-01DC rectifier / power supply1–410–50 A/m², 0–30 VDC per cell, air-cooled, short-circuit & overload protection
H-AU-02Electrode replacement toolkit1Spanner, lifting eye, spare electrode sets (Al + Fe)
H-AU-03Ventilation (explosion-proof)2–3200–500 m³/h, ATEX
H-AU-04LED lighting4–620W, IP65
H-AU-05HVAC (control room)13–6 kW
H-AU-06Spill bund1110% largest tank
H-AU-07Pipework & valves (SS316L)1 setDN25–DN150

Need Detailed Specifications?

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

Request Technical ProposalPilot Testing
Industry Tags

Industries We Serve

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

Food Processing Poultry Processing Meat Processing Dairy Industry Brewery & Beverage Municipal Wastewater Industrial Pre-treatment Desalination Plants Metro & Tunnelling Pharmaceutical Manufacturing Oil & Gas Industry Mining & Minerals Chemical Processing Pulp & Paper Mills Power Generation Textile Manufacturing Storage Tanks Process Tanks