Electrochemical treatment of semi-aerobic landfill leachate using response surface methodology (RSM)

• Main Authors: Isa, M.H., Tan, K.-K., Zinatizadeh, A.A., Mohajeri, S., Aziz, H.A., Hung, Y.-T.
• Format: Citation Index Journal
• Published: Inderscience 2010
• Subjects: TD Environmental technology. Sanitary engineering
• Online Access: http://eprints.utp.edu.my/2938/1/Electrochemical_treatment_of_semi-aerobic_landfill_leachate_using_response_surface_methodology_%28RSM%29.pdf; http://eprints.utp.edu.my/2938/

This research investigated the effectiveness of electrochemical treatment in treating semi-aerobic landfill leachate. The electrolytic reactor assembly included a pair of aluminium electrodes, a power supply and NaCl as electrolyte. The interactive effects of initial COD, current density and reaction time on treated leachate quality were studied. Regression equations were developed using design-expert software and results were analysed using response surface methodology. At optimum conditions (2000 mg/L initial COD, about 17 mA/cm2 current density, 4 h reaction time and 1 g/l NaCl), SCOD removal, BOD removal and colour removal were estimated to be 82.2, 81.5 and 95%, respectively.