eprintid: 1270 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/12/70 datestamp: 2023-11-09 15:49:26 lastmod: 2023-11-09 15:49:26 status_changed: 2023-11-09 15:39:22 type: article metadata_visibility: show creators_name: Mohajeri, S. creators_name: Aziz, H.A. creators_name: Isa, M.H. creators_name: Bashir, M.J.K. creators_name: Mohajeri, L. creators_name: Adlan, M.N. title: Influence of Fenton reagent oxidation on mineralization and decolorization of municipal landfill leachate ispublished: pub keywords: 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, Chemical oxygen demand; Color; Hydrogen peroxide; Leaching; Oxidation; Oxidation resistance; pH effects; Refuse disposal; Removal, Leachate treatment, ferric ion; ferrous gluconate; ferrous ion; hydrogen peroxide; hydroxyl radical; iron, agitation; article; atmospheric pressure; chemical oxygen demand; decolorization; degradation; landfill leachate; mineralization; oxidation; pH; reaction time; temperature; temperature sensitivity, Color; Hydrogen Peroxide; Hydrogen-Ion Concentration; Iron; Kinetics; Minerals; Oxidation-Reduction; Refuse Disposal; Temperature note: cited By 86 abstract: 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. date: 2010 official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-77951234557&doi=10.1080%2f10934521003648883&partnerID=40&md5=68adafff5c11cffc9fe3e78984c0d444 id_number: 10.1080/10934521003648883 full_text_status: none publication: Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering volume: 45 number: 6 pagerange: 692-698 refereed: TRUE issn: 10934529 citation: Mohajeri, S. and Aziz, H.A. and Isa, M.H. and Bashir, M.J.K. and Mohajeri, L. and Adlan, M.N. (2010) Influence of Fenton reagent oxidation on mineralization and decolorization of municipal landfill leachate. Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering, 45 (6). pp. 692-698. ISSN 10934529