Treatment of hazardous waste landfill leachate using Fenton oxidation process

The efficiency of Fenton's oxidation was assessed in this study for hazardous waste landfill leachate treatment. The two major reagents, which are generally employed in Fenton's process are H2O2 as oxidizing agent and Fe2+ as catalyst. Batch experiments were conducted to determine the effe...

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Bibliographic Details
Main Authors: Singa, P.K., Isa, M.H., Ho, Y.-C., Lim, J.-W.
Format: Article
Published: EDP Sciences 2018
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85047778453&doi=10.1051%2fe3sconf%2f20183402034&partnerID=40&md5=370d2a6cb51132a8a34507ce7a26f606
http://eprints.utp.edu.my/21685/
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Institution: Universiti Teknologi Petronas
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Summary:The efficiency of Fenton's oxidation was assessed in this study for hazardous waste landfill leachate treatment. The two major reagents, which are generally employed in Fenton's process are H2O2 as oxidizing agent and Fe2+ as catalyst. Batch experiments were conducted to determine the effect of experimental conditions viz., reaction time, molar ratio, and Fenton reagent dosages, which are significant parameters that influence the degradation efficiencies of Fenton process were examined. It was found that under the favorable experimental conditions, maximum COD removal was 56.49. The optimum experimental conditions were pH=3, H2O2/Fe2+ molar ratio = 3 and reaction time = 150 minutes. The optimal amount of hydrogen peroxide and iron were 0.12 mol/L and 0.04 mol/L respectively. High dosages of H2O2 and iron resulted in scavenging effects on OH� radicals and lowered degradation efficiency of organic compounds in the hazardous waste landfill leachate. © The Authors, published by EDP Sciences, 2018.