Anaerobic digestion of municipal solid waste and agricultural waste and the effect of co-digestion with dairy cow manure

Maritza Macias-Corral, Zohrab Samani, Adrian Hanson, Geoffrey Smith, Paul Funk, Hui Yu, John Longworth

Research output: Contribution to journalArticlepeer-review

225 Scopus citations

Abstract

Anaerobic digestion of dairy cow manure (CM), the organic fraction of municipal solid waste (OFMSW), and cotton gin waste (CGW) was investigated with a two-phase pilot-scale anaerobic digestion (AD) system. The OFMSW and CM were digested as single wastes and as combined wastes. The single waste digestion of CM resulted in 62 m3 methane/ton of CM on dry weight basis. The single waste digestion of OFMSW produced 37 m3 methane/ton of dry waste. Co-digestion of OFMSW and CM resulted in 172 m3 methane/ton of dry waste. Co-digestion of CGW and CM produced 87 m3 methane/ton of dry waste. Comparing the single waste digestions with co-digestion of combined wastes, it was shown that co-digestion resulted in higher methane gas yields. In addition, co-digestion of OFMSW and CM promotes synergistic effects resulting in higher mass conversion and lower weight and volume of digested residual.

Original languageEnglish (US)
Pages (from-to)8288-8293
Number of pages6
JournalBioresource Technology
Volume99
Issue number17
DOIs
StatePublished - Nov 2008

Bibliographical note

Funding Information:
The authors would like to acknowledge financial assistance from the waste-management education research consortium (WERC/DOE), the energy development organization (NEDO) of Japan, and Gonzalez Dairy of Southwest New Mexico.

Keywords

  • Agricultural waste
  • Anaerobic digestion
  • Biogas
  • Dairy manure
  • Municipal waste

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