ELECTROCHEMICAL TREATMENT OF LEACHATE BY MONOPOLAR CONFIGURATION USING IRON ELECTRODE

Nethravathi V S, Krishna B M

Abstract: In this study the treatment of sanitary landfill leachate is carried out by Batch electrocoagulation process using iron and aluminium electrodes in monopolar configuration. The effect of pH, Electrolysis time and cell voltage on COD removal was studied. The maximum removal efficiency of 77% was achieved using iron electrode at optimum voltage of 6V at pH 8 for electro duration of 70 minutes. The energy consumption observed was 0.051 kwh/L of wastewater. Pseudo-first-order and pseudo second order models have been used to fit the experimental data for COD removal using iron electrode. Therefore the EC can be used as for promising treatmet technology for the removal of COD from sanitary landfill leachate.

Keywords: Leachate, Electrocoagulation, chemical oxygen demand. Iron electrode.

DOI: https://doi.org/10.15623/ijret.2017.0611013