Graphene Addition to Digestion of Thin Stillage Can Alleviate Acidic Shock and Improve Biomethane Production
文献类型：期刊论文
| 作者 | Wu, Benteng2,3; Lin, Richen2,3; Kang, Xihui2,3,4; Deng, Chen2,3; Xia, Ao1; Dobson, Alan D. W.5; Murphy, Jerry D.2,3 |
| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| 出版日期 | 2020-09-08 |
| 卷号 | 8期号:35页码:13248-13260 |
| 关键词 | Anaerobic digestion Biomethane Conductive materials Acidic shock Thin stillage |
| ISSN号 | 2168-0485 |
| DOI | 10.1021/acssuschemeng.0c03484 |
| 通讯作者 | Lin, Richen(richen.lin@ucc.ie) |
| 英文摘要 | Production of biomethane from distillery byproducts (such as stillage) in a circular economy system may facilitate a climate neutral alcohol industry. Anaerobic digestion (AD) of easily degradable substrates can lead to rapid acidification and accumulation of intermediate volatile fatty acids, reducing microbial activity and biomethane production. Carbonaceous materials may function as an abiotic conductive conduit to stimulate microbial electron transfer and resist adverse impacts on AD. Herein, nanomaterial graphene and more cost-effective pyrochar were comparatively assessed in their ability to recover AD performance after acidic shock (pH 5.5). Results showed that graphene addition (1.0 g/L) could lead to a biomethane yield of 250 mL/g chemical oxygen demand; this is an 11.0% increase compared to that of the control. The recovered process was accompanied by faster propionate degradation (CH3CH2COO- + 2H(2)O -> CH3COO- + CO2 + 6H(+) + 6e(-)). The enhanced performance was possibly ascribed to the high electrical conductivity of graphene. In comparison, pyrochar addition (1.0 and 10.0 g/L) did not enhance the biomethane yield, though it reduced the digestion lag-phase time by 18.1% and 12.2% compared to the control, respectively. Microbial taxonomy analysis suggested that Methanosarcina (81.5% in abundance) with diverse metabolic pathways and OTU in the order DTU014 (6.4% in abundance) might participate in direct interspecies electron transfer contributing to an effective recovery from acidic shock. |
| WOS关键词 | INTERSPECIES ELECTRON-TRANSFER ; ANAEROBIC-DIGESTION ; METHANE PRODUCTION ; SYNTROPHIC METABOLISM ; BIOCHAR PROPERTIES ; CO-DIGESTION ; SLUDGE ; COMMUNITIES ; PERFORMANCE ; PROPIONATE |
| 资助项目 | Ireland Environmental Protection Agency (EPA) Research Programme 2014-2020[2018-RE-MS-13] ; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant[797259] ; Science Foundation Ireland (SFI) through the MaREI Centre for Energy, Climate and Marine[12/RC/2302_P2] ; Science Foundation Ireland (SFI) through the MaREI Centre for Energy, Climate and Marine[16/SP/3829] ; Department of Communications, Climate Action and Environment ; National Natural Science Foundation of China[51876016] ; Sustainable Energy Authority Ireland[RDD/00454] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000571390000015 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | Ireland Environmental Protection Agency (EPA) Research Programme 2014-2020 ; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant ; Science Foundation Ireland (SFI) through the MaREI Centre for Energy, Climate and Marine ; Department of Communications, Climate Action and Environment ; National Natural Science Foundation of China ; Sustainable Energy Authority Ireland |
| 源URL | [http://ir.giec.ac.cn/handle/344007/32080]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Lin, Richen |
| 作者单位 | 1.Chongqing Univ, Key Lab Low Grade Energy Utilizat Technol & Syst, Minist Educ, Chongqing 400044, Peoples R China 2.Univ Coll Cork, MaREI Ctr, Environm Res Inst, Cork T23 XE10, Ireland 3.Univ Coll Cork, Sch Engn, Cork T23 XE10, Ireland 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 5.Univ Coll Cork, Sch Microbiol, Cork T12 K8AF, Ireland |
| 推荐引用方式 GB/T 7714 | Wu, Benteng,Lin, Richen,Kang, Xihui,et al. Graphene Addition to Digestion of Thin Stillage Can Alleviate Acidic Shock and Improve Biomethane Production[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2020,8(35):13248-13260. |
| APA | Wu, Benteng.,Lin, Richen.,Kang, Xihui.,Deng, Chen.,Xia, Ao.,...&Murphy, Jerry D..(2020).Graphene Addition to Digestion of Thin Stillage Can Alleviate Acidic Shock and Improve Biomethane Production.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,8(35),13248-13260. |
| MLA | Wu, Benteng,et al."Graphene Addition to Digestion of Thin Stillage Can Alleviate Acidic Shock and Improve Biomethane Production".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 8.35(2020):13248-13260. |
入库方式： OAI收割
来源：广州能源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。