Biochar confers significant microbial resistance to ammonia toxicity in n-caproic acid production
文献类型：期刊论文
| 作者 | Wu, Benteng1,2,3; Lin, Richen2,4; Gu, Jing1,3; Yuan, Haoran1,3; Murphy, Jerry D.2,5 |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2024-11-15 |
| 卷号 | 266页码:12 |
| 关键词 | Ammonia inhibition Biochar n-Caproic acid Electron syntrophy Metagenomics |
| ISSN号 | 0043-1354 |
| DOI | 10.1016/j.watres.2024.122367 |
| 通讯作者 | Yuan, Haoran(yuanhr@ms.giec.ac.cn) ; Murphy, Jerry D.(jerry.murphy@ucc.ie) |
| 英文摘要 | Microbial chain elongation integrating innovative bioconversion technologies with organic waste utilization can transition current energy-intensive n-caproic acid production to sustainable circular bioeconomy systems. However, ammonia-rich waste streams, despite their suitability, pose inhibitory challenges to these bioconversion processes. Herein, biochar was employed as an additive to enhance the activity of chain elongating microbes under ammonia inhibition conditions, with an objective to detail underlying mechanisms of improvements. Biochar addition significantly improved chain elongation performance even under severe ammonia stress (exceeding 8 g N/L), increasing n-caproic acid yields by 40 % to 158 % and reducing lag times by 51 % to 90 %, compared with the best-performing group without biochar addition. The material contribution to n-caproic production reached up to 94.3 % (at 4 g N/L). These enhancements were mainly attributed to the new electron syntrophy induced by biochar, which improved electron transfer system activity and electrical conductivity of the fermentation system. This is further substantiated by increased relative abundances of the genus Sporanaerobacter, electroactive bacteria, and up-regulated direct electron transfer-related genes including conductive pili and c-type cytochrome. This study demonstrates that biochar can confer robust resilience to ammonia toxicity in functional microbes, paving a way for efficient and sustainable n-caproic acid production. |
| WOS关键词 | CHAIN ELONGATION ; ENHANCEMENT ; BIOFUELS ; WASTE ; WATER |
| 资助项目 | National Key R & D Program of China[2023YFC3106701] ; European Regional Development Fund under the Interreg NWE Project BioWILL[NWE 964] ; Science Foundation Ireland (SFI) through the Centre for Energy, Climate, Marine (MaREI)[12/RC/2302_P2] ; Science Foundation Ireland (SFI) through the Centre for Energy, Climate, Marine (MaREI)[16/SP/3829] ; Sustainable Energy Authority Ireland[RDD/00454] ; Gas Networks Ireland through the Gas Innovation Group |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001313261400001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Key R & D Program of China ; European Regional Development Fund under the Interreg NWE Project BioWILL ; Science Foundation Ireland (SFI) through the Centre for Energy, Climate, Marine (MaREI) ; Sustainable Energy Authority Ireland ; Gas Networks Ireland through the Gas Innovation Group |
| 源URL | [http://ir.giec.ac.cn/handle/344007/42853]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Yuan, Haoran; Murphy, Jerry D. |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Univ Coll Cork, Environm Res Inst, MaREI Ctr, Cork T23XE10, Ireland 3.Guangdong Prov Key Lab High Qual Recycling End of, Guangzhou 510640, Peoples R China 4.Southeast Univ, Sch Energy & Environm, Key Lab Energy Thermal Convers & Control, Minist Educ, Nanjing 211189, Peoples R China 5.Univ Coll Cork, Sch Engn & Architecture, Civil Struct & Environm Engn, Cork T12YN60, Ireland |
| 推荐引用方式 GB/T 7714 | Wu, Benteng,Lin, Richen,Gu, Jing,et al. Biochar confers significant microbial resistance to ammonia toxicity in n-caproic acid production[J]. WATER RESEARCH,2024,266:12. |
| APA | Wu, Benteng,Lin, Richen,Gu, Jing,Yuan, Haoran,&Murphy, Jerry D..(2024).Biochar confers significant microbial resistance to ammonia toxicity in n-caproic acid production.WATER RESEARCH,266,12. |
| MLA | Wu, Benteng,et al."Biochar confers significant microbial resistance to ammonia toxicity in n-caproic acid production".WATER RESEARCH 266(2024):12. |
入库方式： OAI收割
来源：广州能源研究所
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