Synergetic Effect of Chemical Coagulation and Electroflotation on Synthetic Palm Oil Mill Effluent Treatment

Palm oil mill effluent (POME) is considered the most environmentally harmful when discharged without proper treatment. In addition to conventional biological treatment methods, physicochemical techniques are alternative methods treat POME as polishing or post-treatment meet discharge water quality standards set by authorities. Recently, electroflotation (EF) has gained popularity in wastewater owing its high efficiency, no by-products, and ease of operation. However, EF limitations on energy consumption because current density long electrolysis time often used increase gas bubbles metallic ions produced system pollutant removal. Polyaluminum chloride (PAC) cationic polyacrylamide (CPAM) options for production coagulants instead using a sacrificial anode EF. this study, we hypothesized that PAC CPAM could enhance efficiency reduce specific minimizing The effects time, density, coagulant dosage were investigated. at 2.5 mA/cm2 achieved 82% turbidity 47% chemical oxygen demand (COD) removal after 45 min consuming 0.014 kWh one gram COD. There was improvement terms increased from 5 mA/cm2; however, COD up 52% mA/cm2. When performed 1 A combined with 40 mg/L 20 mg/L, it noticed 96% 54%, respectively, within 15 electrolysis. Subsequently, reduced 0.004 (by 71%) per Results confirmed method can be improved aiming further reduction mineralizing dissolved organic compounds fulfill standards.