Use of Fenton reaction for the treatment of leachate from composting of different wastes

Daniel Trujillo, Xavier Font, Antoni Sánchez

    Research output: Contribution to journalArticleResearchpeer-review

    66 Citations (Scopus)

    Abstract

    The oxidation of leachate coming from the composting of two organic wastes (wastewater sludge and organic fraction of municipal solid wastes) using the Fenton's reagent was studied using different ratios [Fe2+]/[COD]0 and maintaining a ratio [H2O2]/[COD]0 equal to 1. The optimal conditions for Fenton reaction were found at a ratio [Fe2+]/[COD]0 equal to 0.1. Both leachates were significantly oxidized under these conditions in terms of COD removal (77 and 75% for leachate from wastewater sludge composting and leachate from organic fraction of municipal solid wastes, respectively) and BOD5 removal (90 and 98% for leachate from wastewater sludge composting and leachate from organic fraction of municipal solid wastes, respectively). Fenton's reagent was found to oxidize preferably biodegradable organic matter of leachate. In consequence, a decrease in the biodegradability of leachates was observed after Fenton treatment for both leachates. Nevertheless, Fenton reaction proved to be a feasible technique for the oxidation of the leachate under study, and it can be considered a suitable treatment for this type of wastewaters. © 2006 Elsevier B.V. All rights reserved.
    Original languageEnglish
    Pages (from-to)201-204
    JournalJournal of Hazardous Materials
    Volume138
    DOIs
    Publication statusPublished - 2 Nov 2006

    Keywords

    • BOD removal 5
    • COD removal
    • Composting
    • Fenton reaction
    • Leachate

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