Odor emission and microbial community succession during biogas residue composting covered with a molecular membrane

Yinchao Li, Yongdi Liu, Xiaoyu Yong, Xiayuan Wu, Honghua Jia, Jonathan W C WONG, Hao Wu, Jun Zhou*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

A membrane-covered composting system was used to investigate the odor emission and microbial community succession during biogas residue composting. Results showed that in comparison with the control (CK) group, the NH3 and H2S emissions outside the membrane of the membrane-covered (CT) group decreased by 58.64% and 38.13%, respectively. The nitrogen preservation rate of the CT group was increased by 17.27% in comparison with the CK group. Moreover, the ammonium nitrogen and nitrate nitrogen contents of the CT group were 37.68% and 11.77% higher than those of the CK group, respectively. Microbial analysis showed that the average abundance and co-occurrence rate of ammonification bacteria dominated by Pseudomonas and Bacillus in the CT group were lower than those in the CK group, and the abundance of anaerobic sulfate-reducing bacteria (SRB) dominated by Desulfovibrio in the CT group was higher than that in the CK group.

Original languageEnglish
Article number122518
JournalBioresource Technology
Volume297
DOIs
Publication statusPublished - Feb 2020

Scopus Subject Areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

User-Defined Keywords

  • Biogas residue
  • Composting
  • Molecular membrane
  • Nitrogen
  • Odor emissions

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