Energy production from anaerobic co-digestion of swine manure and microalgae Chlorella sp

Meng Wang, Eunyoung Lee, Qiong Zhang, Sarina Ergas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Microalgae Chlorella sp. grown in the centrate of anaerobically digested swine manure were harvested for anaerobic digestion and co-digestion with swine manure for energy production. Chlorella had the lowest biogas yield when digested alone. Co-digestion of algae with swine manure improved the biogas yield of algae. Addition of 6-16% (by volatile solids) of algae to swine manure did not affect the biogas yield of swine manure. However, co-digestion of more than 43% (by volatile solids) of algae with swine manure decreased the biogas yield of swine manure. A concentrated animal feeding operation (CAFO) with 7000 pigs with algae production and anaerobic digestion will produce an average net energy of 43kWh per day.

Original languageEnglish (US)
Title of host publication87th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2014
PublisherWater Environment Federation
Pages3806-3816
Number of pages11
ISBN (Electronic)9781510870451
StatePublished - Oct 1 2014
Event87th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2014 - New Orleans, United States
Duration: Sep 27 2014Oct 1 2014

Publication series

Name87th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2014
Volume6

Conference

Conference87th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2014
CountryUnited States
CityNew Orleans
Period9/27/1410/1/14

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All Science Journal Classification (ASJC) codes

  • Ecological Modeling
  • Environmental Chemistry
  • Pollution
  • Waste Management and Disposal
  • Water Science and Technology

Cite this

Wang, M., Lee, E., Zhang, Q., & Ergas, S. (2014). Energy production from anaerobic co-digestion of swine manure and microalgae Chlorella sp. In 87th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2014 (pp. 3806-3816). (87th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2014; Vol. 6). Water Environment Federation.