A closed loop case study of decentralized food waste management: System performance and life cycle carbon emission assessment
文献类型：期刊论文
| 作者 | Tian, Hailin1,2,3; Yan, Miao2,4; Zhou, Jieyu2,3; Wu, Qinglian2,5; Tiong, Yong Wei2,3; Lam, Heng Thong2,3; Zhang, Jingxin6; Tong, Yen Wah2,3,7,8 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023-11-15 |
| 卷号 | 899页码:10 |
| 关键词 | Food waste Anaerobic digestion Decentralized system Carbon emission Energy efficiency |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2023.165783 |
| 通讯作者 | Tong, Yen Wah(chetyw@nus.edu.sg) |
| 英文摘要 | Food waste (FW) has become a worldwide issue, while anaerobic digestion (AD) has appeared as a widely adopted technology to recover energy and resources from FW. Compared to many existing case studies of centralized AD system, the comprehensive study of decentralized micro-AD system from both system energy efficiency and carbon emission perspective is still scanty, particularly system operated under ambient temperature conditions. In this study, an actual decentralized micro-AD system with treating capacity of 300 kg FW/ d for a local hawker center in Singapore was reported and evaluated. The results showed that 1894.5 kg of FW was treated and 173 m3 biogas with methane content of 53 % was produced during the experimental period of 75 days. The methane yield results showed a high FW degradation efficiency (87.87 %). However, net energy consumption and net carbon emission were observed during the experimental period. Nevertheless, energy self efficiency and carbon neutrality, even net energy output and carbon reduction, can be achieved by increasing daily FW loading and biogas engine efficiency. Specifically, the FW loading for system energy self-efficiency was identified as 159 kg/d for engine efficiency of 35 % at a high kitchen waste/table waste ratio (63 %/37 %, with covid-19 dine-in restrictions); while they were 112 and 58 kg/d for engine efficiency of 25 % and 35 %, respective, at a low kitchen waste/table waste ratio (31 %/69 %, without covid-19 dine-in restrictions). The carbon emission ranged from 156.08 kg CO2-eq/t FW to-77.35 kg CO2-eq/t FW depending on the FW loading quantity and engine efficiency. Moreover, the sensitivity analysis also showed that the used electricity source for substitution influenced the carbon emission performance significantly. The obtained results imply that the decentralized micro-AD system could be a feasible FW management solution for energy generation and carbon reduction when the FW loading and engine electrical efficiency are carefully addressed. |
| WOS关键词 | ANAEROBIC-DIGESTION ; ORGANIC WASTE ; ENERGY |
| 资助项目 | National Environment Agency, Singapore under its Closing the Waste Loop Funding Initiative[USS-IF-2019-6] ; National Research Foundation, Prime Minister's Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001052421000001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Environment Agency, Singapore under its Closing the Waste Loop Funding Initiative ; National Research Foundation, Prime Minister's Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme |
| 源URL | [http://ir.giec.ac.cn/handle/344007/39671]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Tong, Yen Wah |
| 作者单位 | 1.Guangdong Univ Technol, Sch Ecol Environ & Resources, Key Lab City Cluster Environm Safety & Green Dev, Minist Educ, Guangzhou 510006, Peoples R China 2.Natl Univ Singapore, Environm Res Inst, 1 Create Way, Singapore 138602, Singapore 3.Campus Res Excellence & Technol Enterprise CREATE, Energy & Environm Sustainabil Megac E2S2, Phase 2,1 Create Way, Singapore 138602, Singapore 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 5.Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150000, Peoples R China 6.Shanghai Jiao Tong Univ, China UK Low Carbon Coll, Shanghai 201306, Peoples R China 7.Natl Univ Singapore, Dept Chem & Biomol Engn, 4 Engn Dr, Singapore 117585, Singapore 8.Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore, Singapore |
| 推荐引用方式 GB/T 7714 | Tian, Hailin,Yan, Miao,Zhou, Jieyu,et al. A closed loop case study of decentralized food waste management: System performance and life cycle carbon emission assessment[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,899:10. |
| APA | Tian, Hailin.,Yan, Miao.,Zhou, Jieyu.,Wu, Qinglian.,Tiong, Yong Wei.,...&Tong, Yen Wah.(2023).A closed loop case study of decentralized food waste management: System performance and life cycle carbon emission assessment.SCIENCE OF THE TOTAL ENVIRONMENT,899,10. |
| MLA | Tian, Hailin,et al."A closed loop case study of decentralized food waste management: System performance and life cycle carbon emission assessment".SCIENCE OF THE TOTAL ENVIRONMENT 899(2023):10. |
入库方式： OAI收割
来源：广州能源研究所
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