Treatment of landfill leachate by the Fenton process

Yang Deng, James D. Englehardt

Research output: Contribution to journalReview article

455 Scopus citations

Abstract

In recent years, studies of leachate treatment by conventional Fenton, photo-Fenton and electro-Fenton processes have indicated that these methods can effectively reduce concentrations of organic contaminants and color. In addition, the process can increase the biodegradable fraction of organic constituents in leachate, particularly in mature or biologically recalcitrant leachate. Oxidation and coagulation both play important roles in the removal of organics. Initial pH, dosages of Fenton reagents, aeration, final pH, reagent addition mode, temperature, and UV irradiation may influence final treatment efficiency. In this paper, current knowledge of performance and economics of Fenton processes for treatment of landfill leachate as reported for laboratory, pilot and full-scale studies is reviewed, with the conclusion that the Fenton process is an important and competitive technology for the treatment or pretreatment of landfill leachate.

Original languageEnglish
Pages (from-to)3683-3694
Number of pages12
JournalWater Research
Volume40
Issue number20
DOIs
StatePublished - 1 Dec 2006

Keywords

  • Coagulation
  • Fenton treatment
  • Landfill leachate
  • Oxidation

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