Abattoir Wastewater Treatment by Electrocoagulation Using Iron Electrodes

This paper presents the results of the treatment of abattoir wastewater by electrocoagulation (EC) process using ironiron electrodes. The electrolytic cell used had a working volume of 500 ml equipped with magnetic stirrer operating at 150 rpm. The effect of various process variables such as initial pH, current intensity, electrolysis time, settling time and operating temperature on removal efficiency of turbidity was investigated. The removal efficiency of 93.69% was achieved at optimum condition of solution pH 2, current intensity 2.5A, electrolysis time of 30 minutes, settling time of 60 minutes, and operating temperature of 60oC at 0.55 kWh/L power consumption. The study of the reaction kinetics showed conformity to a pseudo second order process. The findings were favorable and showed that EC technique using Fe-Fe electrodes is effective in abattoir wastewater treatment.

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