Simultaneous biogas and biogas slurry production from co-digestion of pig manure and corn straw: Performance optimization and microbial community shift

Research output: Contribution to journalJournal article – Annual report year: 2019Researchpeer-review

  • Author: Ning, Jing

    Chinese Academy of Sciences

  • Author: Zhou, Mingdian

    Chinese Academy of Sciences

  • Author: Pan, Xiaofang

    Chinese Academy of Sciences

  • Author: Li, Chunxing

    Department of Environmental Engineering, Technical University of Denmark, Bygningstorvet, 2800, Kgs. Lyngby, Denmark

  • Author: Lv, Nan

    Chinese Academy of Sciences

  • Author: Wang, Tao

    Chinese Academy of Sciences

  • Author: Cai, Guanjing

    Chinese Academy of Sciences

  • Author: Wang, Ruming

    Chinese Academy of Sciences

  • Author: Li, Junjie

    Chinese Academy of Sciences

  • Author: Zhu, Gefu

    Chinese Academy of Sciences

View graph of relations

Anaerobic co-digestion (AcoD) is proved as an effective approach to solving a bottleneck problem of the low biogas yield in agricultural biomass waste treatment with anaerobic digestion (AD) technology. The present study investigated the effect of C/N radio, organic loading rate (OLR) and total solids (TS) contents on reactor performance in AcoD of pig manure and corn straw for simultaneous biogas and biogas slurry production. It was found that the highest biogas production was obtained at C/N ratio of 25, while the best biogas slurry performance was achieved at C/N ratio of 35. And high OLR and TS resulted in good performances in both biogas production and biogas slurry. At last, the microbial community analysis suggested that Bacteroidetes played a significant role in AcoD process. Acetoclastic methanogenesis was the main pathway for methane production in the stable system. And changing operational parameters could transform and shift the microbial community.

Original languageEnglish
JournalBioresource Technology
Volume282
Pages (from-to)37-47
ISSN0960-8524
DOIs
Publication statusPublished - 1 Jun 2019
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Agricultural biomass waste, Anaerobic co-digestion, Biogas, Biogas slurry, Microbial community shift

ID: 170250992