Insights into the roles of humic acids in facilitating the anaerobic digestion process
文献类型：期刊论文
| 作者 | Zhu, Rong1,3; Yan, Miao5; Zhang, Yun3; Zou, Hua3; Zheng, Yi4; Guo, Rongbo2; Fu, Shanfei2,6 |
| 刊名 | WASTE MANAGEMENT
 |
| 出版日期 | 2023-08-01 |
| 卷号 | 168页码:25-34 |
| 关键词 | Anaerobic digestion Lignocellulosic biomass Humic acids Direct interspecies transfer Microbial community |
| ISSN号 | 0956-053X |
| DOI | 10.1016/j.wasman.2023.05.050 |
| 通讯作者 | Fu, Shanfei(fusf@qibebt.ac.cn) |
| 英文摘要 | Humic acids (HAs) are important byproducts of anaerobic digestion (AD), which have complex structures and dynamic electrochemical activities. However, the effects of HAs on AD process were usually misestimated due to the neglect of the in situ generated HAs and the interaction between HAs and metal ions. This study explored the effects of HAs on AD performance using corn straw as typical "clean" substrate (rare in metals content) via commercial HAs (C-HAs) addition and in-situ-generated HAs (In-HAs) removal. Results showed that C-HAs (1 g/ L) addition promoted the maximum methane production rate (Rm) by 20.6%, while In-HAs removal decreased the Rm by 42.7%. Meanwhile, C-HAs showed little effect on the acidification of corn straw but increased the Rm during the methanation of ethanol by 41.6%. Both the C-HAs and In-HAs were rich in surface oxygen-containing functional groups, which enabled them to act as electron shuttles and facilitate the syntrophic methanogenesis. HAs also acted in regulation of syntrophic microorganisms. For instance, C-HAs addition enriched the relative abundances of Cloacimonadia, Spirochaetia, Synergistia and Methanosarcina, while the removal of In-HAs reduced the relative abundances of Spirochaetia and Synergistia. In conclusion, HAs addition to the AD process could be a feasible approach to improve methane production by enhancing direct interspecies electron transfer during AD of lignocellulosic biomass. |
| WOS关键词 | INTERSPECIES ELECTRON-TRANSFER ; MICROBIAL REDUCTION ; ACTIVATED CARBON ; MICROORGANISMS |
| 资助项目 | National Natural Science Foundation of China[51808260] ; State Key Laboratory of Pollution Control and Resource Reuse Foundation[PCRRF21044] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001013131100001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; State Key Laboratory of Pollution Control and Resource Reuse Foundation |
| 源URL | [http://ir.giec.ac.cn/handle/344007/39522]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Fu, Shanfei |
| 作者单位 | 1.Gannan Normal Univ, Sch Geog & Environm Engn, Jiangxi Prov Key Lab Low Carbon Solid Waste Recycl, Ganzhou 34100, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Shandong Ind Engn Lab Biogas Prod & Utilizat, Key Lab Biofuels, 189 Songling Rd, Qingdao 266101, Peoples R China 3.Jiangnan Univ, Sch Environm & Civil Engn, Jiangsu Key Lab Anaerob Biotechnol, Wuxi 214122, Jiangsu, Peoples R China 4.Kansas State Univ, Dept Grain Sci & Ind, Manhattan, KS 66506 USA 5.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 6.State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Rong,Yan, Miao,Zhang, Yun,et al. Insights into the roles of humic acids in facilitating the anaerobic digestion process[J]. WASTE MANAGEMENT,2023,168:25-34. |
| APA | Zhu, Rong.,Yan, Miao.,Zhang, Yun.,Zou, Hua.,Zheng, Yi.,...&Fu, Shanfei.(2023).Insights into the roles of humic acids in facilitating the anaerobic digestion process.WASTE MANAGEMENT,168,25-34. |
| MLA | Zhu, Rong,et al."Insights into the roles of humic acids in facilitating the anaerobic digestion process".WASTE MANAGEMENT 168(2023):25-34. |
入库方式： OAI收割
来源：广州能源研究所
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