Performance evaluation of a full-scale innovative swine waste-to-energy system.

Journal Article (Journal Article)

Intensive monitoring was carried out to evaluate the performance of a full-scale innovative swine waste-to-energy system at a commercial swine farm with 8640 heads of swine. Detailed mass balances over each unit of the system showed that the system, which includes a 7600m(3) anaerobic digester, a 65-kW microturbine, and a 4200m(3) aeration basin, was able to remove up to 92% of the chemical oxygen demand (COD), 99% of the biological oxygen demand (BOD), 77% of the total nitrogen (TN), and 82% of the total phosphorous (TP) discharged into the system as fresh pig waste. The overall biogas yield based on the COD input was 64% of the maximum theoretical, a value that indicates that even greater environmental benefits could be obtained with process optimization. Overall, the characterization of the materials fluxes in the system provides a greater understanding of the fate of organics and nutrients in large scale animal waste management systems.

Full Text

Duke Authors

Cited Authors

  • Xu, J; Adair, CW; Deshusses, MA

Published Date

  • September 2016

Published In

Volume / Issue

  • 216 /

Start / End Page

  • 494 - 502

PubMed ID

  • 27268434

Pubmed Central ID

  • 27268434

Electronic International Standard Serial Number (EISSN)

  • 1873-2976

International Standard Serial Number (ISSN)

  • 0960-8524

Digital Object Identifier (DOI)

  • 10.1016/j.biortech.2016.05.089


  • eng