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This study employed cubic response surface methodology (RSM) to optimize electrocoagulation (EC) treatment of actual carwash wastewater using stainless-steel electrodes. The researchers modeled the relationships between operating parameters and treatment efficiency, then applied multi-criteria evaluation methods to determine optimal conditions for removing pollutants from carwash effluent. The cubic RSM approach provided enhanced predictive accuracy compared to traditional quadratic models for this complex wastewater treatment system.
Why it matters
Carwash facilities generate significant volumes of contaminated wastewater containing oils, detergents, and suspended solids that require treatment before discharge. This research provides an optimized, cost-effective electrocoagulation method using readily available stainless-steel electrodes, offering practical guidance for carwash operators and wastewater treatment facilities to meet environmental discharge standards while minimizing operational costs.
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