TY - JOUR N2 - This study evaluated the effectiveness of Fenton's technique for the treatment of semi-aerobic landfill leachate collected from Pulau Burung Landfill Site (PBLS), Penang, Malaysia. The Fe2+ or Fe3+ as catalyst and H2O2 as oxidizing agent are commonly used for the classical Fenton's reaction. In present study, the effect of operating conditions such as pH,reaction time, molar ratio, agitation rate, feeding mode and Fenton reagent concentrations which are important parameters that affect the removal efficiencies of Fenton method were investigated. Under the most favorable conditions, the highest removals of 58.1 and 78.3 were observed for COD and color, respectively. In general, the best operating conditions were pH = 3, Fe = 560 mg L-1, H2O2 = 1020 mg L -1, H2O2/Fe2+ molar ratio = 3, agitation rate = 400 rpm and reaction time = 120 minutes. The results highlighted that stepwise addition of Fenton's reagent was more effective than adding the entire volume in a single step. Excessive hydrogen peroxide and iron have shown scavenging effects on hydroxyl radicals and reduced degradation of refractory organics in the landfill leachate. Copyright © Taylor & Francis Group, LLC. IS - 6 ID - scholars1270 KW - Advanced oxidation processes; Agitation rates; Favorable conditions; Feeding modes; Fenton method; Fenton oxidation; Fenton reagents; Fenton's reaction; Fenton's reagents; Hydroxyl radicals; Landfill leachates; Landfill site; Leachates; Malaysia; Molar ratio; Municipal landfill leachate; Operating condition; Organics; Oxidizing agents; Reaction time; Removal efficiencies; Scavenging effect; Semi-aerobic landfill; Single-step KW - Chemical oxygen demand; Color; Hydrogen peroxide; Leaching; Oxidation; Oxidation resistance; pH effects; Refuse disposal; Removal KW - Leachate treatment KW - ferric ion; ferrous gluconate; ferrous ion; hydrogen peroxide; hydroxyl radical; iron KW - agitation; article; atmospheric pressure; chemical oxygen demand; decolorization; degradation; landfill leachate; mineralization; oxidation; pH; reaction time; temperature; temperature sensitivity KW - Color; Hydrogen Peroxide; Hydrogen-Ion Concentration; Iron; Kinetics; Minerals; Oxidation-Reduction; Refuse Disposal; Temperature Y1 - 2010/// JF - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering A1 - Mohajeri, S. A1 - Aziz, H.A. A1 - Isa, M.H. A1 - Bashir, M.J.K. A1 - Mohajeri, L. A1 - Adlan, M.N. UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-77951234557&doi=10.1080%2f10934521003648883&partnerID=40&md5=68adafff5c11cffc9fe3e78984c0d444 VL - 45 AV - none N1 - cited By 86 TI - Influence of Fenton reagent oxidation on mineralization and decolorization of municipal landfill leachate SP - 692 SN - 10934529 EP - 698 ER -