%O cited By 253
%L scholars1275
%J Journal of Hazardous Materials
%D 2010
%N 1-3
%R 10.1016/j.jhazmat.2009.11.099
%K Color removal; Desirability function; Electro-Fenton; Electro-Fenton process; Fenton process; High concentration; Landfill leachate treatment; Landfill leachates; Molar ratio; Numerical optimizations; Operating parameters; Organics; Process parameters; Quadratic polynomial; Reaction time; Recalcitrant organics; Response Surface Methodology; Semi-aerobic landfill; Statistical optimization, Color; Leaching; Optimization; Refuse disposal; Removal; Surface properties, Leachate treatment, glass; hydrogen peroxide; iron; metal; oxygen; plastic, chemical oxygen demand; landfill; leachate; methodology; modeling; optimization; pollutant removal; reaction rate; waste treatment, article; biodegradability; chemical oxygen demand; controlled study; decolorization; density; Fenton reaction; landfill leachate; mathematical model; pH; process optimization; reaction time; response surface method; solid waste, Color; Electrochemical Techniques; Environmental Remediation; Hydrogen Peroxide; Hydrogen-Ion Concentration; Kinetics; Organic Chemicals; Water Pollutants, Chemical; Water Purification
%X Mature landfill leachate is typically non-biodegradable and contains high concentration of refractory organics. The aim of this research was to optimize operating parameters in electro-Fenton process, for the removal of recalcitrant organics from semi-aerobic landfill leachate using response surface methodology (RSM). Effectiveness of important process parameters H2O2/Fe2+ molar ratio, current density, pH and reaction time were determined, optimized and modeled successfully. Significant quadratic polynomial models were obtained (R2 = 0.9972 and 0.9984 for COD and color removals, respectively). Numerical optimization based on desirability function were employed; in a 43 min trial 94.07 of COD and 95.83 of color were removed at pH 3 and H2O2/Fe2+ molar ratio 1, while current density was 49 mA/cm2. The results indicate that E-Fenton process was an effective technology for semi-aerobic landfill leachate treatment. © 2009 Elsevier B.V. All rights reserved.
%P 749-758
%T Statistical optimization of process parameters for landfill leachate treatment using electro-Fenton technique
%V 176
%A S. Mohajeri
%A H.A. Aziz
%A M.H. Isa
%A M.A. Zahed
%A Mohd.N. Adlan