Effects of leachate recirculation on biogas production from landfill co-disposal of municipal solid waste, sewage sludge and marine sediment

Yuk Sing Gilbert Chan, L. M. Chu, M. H. Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

80 Citations (Scopus)


Leachate recirculation is an emerging technology associated with the management of landfill. The impact of leachate recirculation on the co-disposal of three major wastes (municipal solid waste, sewage sludge and sediment dredgings) was investigated using a laboratory column study. Chemical parameters (pH, COD, ammoniacal-N, total-P) and gas production (total gas volume, production rates and concentrations of CH4and CO2) were monitored for 11 weeks. Leachate recirculation reduced waste-stabilization time and was effective in enhancing gas production and improving leachate quality, especially in terms of COD. The results also indicated that leachate recirculation could maximize the efficiency and waste volume reduction rate of landfill sites.
Original languageEnglish
Pages (from-to)393-399
Number of pages7
JournalEnvironmental Pollution
Issue number3
Publication statusPublished - 23 Mar 2002


  • Anaerobic digestion
  • Landfill capacity
  • Leachate quality
  • Methane
  • Methanogensis

ASJC Scopus subject areas

  • Toxicology
  • Pollution
  • Health, Toxicology and Mutagenesis

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