EC SKID (Electrocoagulation SKID)

Mechanical filtration addresses only two issues in wash rack wash water: suspended solids larger than 30 µm, and free oil and grease. Emulsified oil and grease cause damage to the media filters, resulting in high maintenance costs. Electrocoagulation addresses any size of suspended solids (including destructive >30 µm particles and heavy metals that can cause wear and tear on pressure washers and pose an environmental and employee hazard). Chemical treatment addresses suspended solids, oil and grease, and some heavy metals, but may require up to three polymer and multiple pH adjustments for proper treatment. This technology requires the addition of chemicals resulting in expensive, messy, and labor-intensive treatment. This process also requires addition of compressed air for flotation of coagulated contaminants. Generally filtration is also required as a post-treatment phase for polishing. Electrocoagulation requires no filters, no daily maintenance, and no additives and removes any size of suspended solids, oil, grease and heavy metals.