Performance, Modeling, and Cost Analysis of Chemical Coagulation-Assisted Solar Powered Electrocoagulation Treatment System for Pharmaceutical Wastewater

The combination of the chemical coagulation-assisted electrocoagulation (CC-EC) process with a solar photovoltaic energy source has attracted increasing attention for efficient removal oxygen demand (COD) from pharmaceutical wastewater. In this paper, CC-EC been utilized as an alternative to conventional processes treatment effects various operating parameters, such coagulant dosage, type, number electrodes, distance between electrode configuration, time, and current density, on COD efficiency were investigated. results indicated that optimum conditions achieved at 500 mg/L alum 3.105 mA/cm2 six electrodes 4 cm MP-S where cost was 0.283 $/m3. Indeed, by using CC alone, 26% 61.5% optimal dosages 750 NaOH alum, respectively. treatment, efficiencies 88.7, 92.9, 94.4, 89.4% 2 20 min 1.553 through CC, EC, 61.5, 85.4, 94.4%,