Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Graphene Addition to Digestion of Thin Stillage Can Alleviate Acidic Shock and Improve Biomethane Production | |
| Wu, Benteng1,2; Lin, Richen1,2; Kang, Xihui1,2,3; Deng, Chen1,2; Xia, Ao4; Dobson, Alan D. W.5; Murphy, Jerry D.1,2 | |
| 2020-09-08 | |
| Source Publication | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| ISSN | 2168-0485 |
| Volume | 8Issue:35Pages:13248-13260 |
| Corresponding Author | Lin, Richen(richen.lin@ucc.ie) |
| Abstract | 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. |
| Keyword | Anaerobic digestion Biomethane Conductive materials Acidic shock Thin stillage |
| DOI | 10.1021/acssuschemeng.0c03484 |
| WOS Keyword | INTERSPECIES ELECTRON-TRANSFER ; ANAEROBIC-DIGESTION ; METHANE PRODUCTION ; SYNTROPHIC METABOLISM ; BIOCHAR PROPERTIES ; CO-DIGESTION ; SLUDGE ; COMMUNITIES ; PERFORMANCE ; PROPIONATE |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Chemistry ; Science & Technology - Other Topics ; Engineering |
| Funding Organization | 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 |
| WOS Subject | Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical |
| WOS ID | WOS:000571390000015 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/32081 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Lin, Richen |
| Affiliation | 1.Univ Coll Cork, MaREI Ctr, Environm Res Inst, Cork T23 XE10, Ireland 2.Univ Coll Cork, Sch Engn, Cork T23 XE10, Ireland 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 4.Chongqing Univ, Key Lab Low Grade Energy Utilizat Technol & Syst, Minist Educ, Chongqing 400044, Peoples R China 5.Univ Coll Cork, Sch Microbiol, Cork T12 K8AF, Ireland |
| Recommended Citation 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. |
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