Electrocoagulation
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Electrocoagulation (EC)
Electrically-Driven Coagulation for Metals Removal, TSS Reduction & Produced Water Treatment
Electrocoagulation is an electrically-driven water treatment process in which metal ions are released from sacrificial electrodes (typically iron or aluminum) into the wastewater stream. These metal ions react with dissolved and suspended contaminants — forming coagulated floc that can be settled or filtered from the treated water. EC achieves effective removal of metals, suspended solids, oil and grease, colour, and certain organic compounds without the need for chemical coagulant dosing.
GWTS has delivered EC technology as part of multi-technology treatment systems, including the Fox Creek Water Management Facility where EC was deployed alongside filtration and chemical oxidation for complex industrial wastewater treatment. EC is particularly effective for produced water, oil sands process-affected water, and industrial effluent streams with challenging contaminant profiles.
Key Benefits
- Effective metals removal without chemical addition — reduced chemical handling and sludge
- Simultaneous TSS, oil & grease, colour, and turbidity removal
- Compact, modular footprint — well-suited to remote and temporary operations
- Adjustable treatment intensity via electrode current control
- Lower sludge volumes vs. conventional chemical coagulation
- Compatible with upstream filtration and downstream membrane polishing
Applications
Process Characteristics
Performance
Operating Conditions
Integration
Evaluating Electrocoagulation for Your Application?
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