Anaerobic digestion of pig manure mixed with sewage sludge

Ming Hung WONG*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

10 Citations (Scopus)


This experiment explored the possibility of treating pig manure plus sewage sludge by anaerobic digestion, using batch fermentation at 37°C. The results indicated that the digested materials contained a lower level of putrescible matter when compared to the raw materials. Co-digestion of pig manure and sewage sludge at the ratio of 2:1 seemed to give the best results in terms of reducing the organic load and yielding a higher volume of methane. The experiment should be repeated in digestion tanks of a sewage treatment plant, especially for treating pig manure which has been recognized as the major source of water pollution in Hong Kong.

Original languageEnglish
Pages (from-to)223-230
Number of pages8
JournalBiological Wastes
Issue number3
Publication statusPublished - 1990

Scopus Subject Areas

  • Environmental Science(all)
  • Waste Management and Disposal
  • Pollution
  • Earth and Planetary Sciences(all)


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