Ammonia stress decreased biomarker genes of acetoclastic methanogenesis and second peak of production rates during anaerobic digestion of swine manure
文献类型：期刊论文
| 作者 | Yu, Dawei; Zhang, Junya ; Chulu, Buhe; Yang, Min; Nopens, Ingmar; Wei, Yuansong
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| 刊名 | BIORESOURCE TECHNOLOGY
 |
| 出版日期 | 2020-12 |
| 卷号 | 317页码:1-10 |
| ISSN号 | 0960-8524 |
| 关键词 | Apparent kinetic Ammonia Methanogenic pathway Lag-phase Biomarker |
| 英文摘要 | Research shows that anaerobic digestion could acclimate to ammonia stress; however, the acclimation remained unaddressed. In this study, evolution of microbial community, functional gene, and pathway was linked with apparent kinetic and performance in unacclimated inoculum under ammonia stress, to deepen understanding of the acclimation. The second peak in production rate demonstrated crucial kinetic changes under ammonia stress. The methane loss was mainly protein in residual COD. Metagenomic showed initial inhibition in all methane metabolism pathways under ammonia stress, and recovery in acetate uptake was the key to ammonia acclimation. The acclimation was found in alternative pathway of Acetyl-CoA (CH3CO-S-CoA) synthesis from acetate, accompanying by syntrophic methanogenesis. Ammonia inhibited acetoclastic methanogenesis by competing CH3-CO-P-i with pta and formed speculative sediment CH3-CO-PO4[NH4](2). Biomarker of methanogenesis kinetic was suggested as mcr, hdr, and mch. The biomarker could indicate acclimation stages to ammonia, empowering anaerobic digestion by early warning of methane loss. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45013]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 推荐引用方式 GB/T 7714 | Yu, Dawei,Zhang, Junya,Chulu, Buhe,et al. Ammonia stress decreased biomarker genes of acetoclastic methanogenesis and second peak of production rates during anaerobic digestion of swine manure[J]. BIORESOURCE TECHNOLOGY,2020,317:1-10. |
| APA | Yu, Dawei,Zhang, Junya,Chulu, Buhe,Yang, Min,Nopens, Ingmar,&Wei, Yuansong.(2020).Ammonia stress decreased biomarker genes of acetoclastic methanogenesis and second peak of production rates during anaerobic digestion of swine manure.BIORESOURCE TECHNOLOGY,317,1-10. |
| MLA | Yu, Dawei,et al."Ammonia stress decreased biomarker genes of acetoclastic methanogenesis and second peak of production rates during anaerobic digestion of swine manure".BIORESOURCE TECHNOLOGY 317(2020):1-10. |
入库方式： OAI收割
来源：生态环境研究中心
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