Life cycle assessment of large-scale and household biogas plants in northwest China

doi:10.1016/j.jclepro.2018.04.264

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	Life cycle assessment of large-scale and household biogas plants in northwest China
	Taotao Li 2; Wu, FQ (reprint author), Northwest A&F Univ, Coll Resources & Environm, Yangling, Shaanxi, Peoples R China.; Yu Wang 2; Xihui Wu 1; Xiaogang Tong 3; Faqi Wu 3
刊名	JOURNAL OF CLEANER PRODUCTION
	2018
卷号	192 页码:221-235
关键词	Life Cycle Assessment Energy Use Environmental Impact Potential Large-scale Biogas Production Household Biogas Production
ISSN号	0959-6526
DOI	10.1016/j.jclepro.2018.04.264
文献子类	Article
英文摘要	In northwest China, large-scale (modern) and household biogas production (conventional) plants are the two main methods of biogas fermentation, a promising means of livestock waste disposal and effective agricultural recycling. Differences in the operating mechanisms of the two systems result in differences in their environmental performance. In this study, detailed life cycle assessments of large-scale and household biogas production were conducted to compare their environmental performance in terms of energy use and environmental impact potential per function unit (2136 tonne/yr of manure flowing into the biogas plant). Data were collected over a two-year period (2014-2016). The results showed that the total biogas output from the large-scale digester was 1.88 times that of the household digester. Net energy output did not differ much between the two systems, due to the high energy consumption of the large-scale plant during production. The energy-use efficiency of the large-scale plant was 1.29 times that of the household plant due to the use of co-products. Higher carbon dioxide and volatile organic compound emissions from the burning of biogas in the large-scale plant caused a higher potential for global warming and photochemical oxidation. However, higher ammonia and sulfur dioxide emissions occurred in the household plant, resulting in a higher potential for eutrophication, acidification and human toxicity. In conclusion, the waste of extra biogas for heat in large-scale biogas production, and undeveloped management, emissions through poor air-tightness and lack of technical biogas purification in household biogas production are the main hotspots to improve the environmental performance. (C) 2018 Elsevier Ltd. All rights reserved.
学科主题	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
出版地	THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000435619400019
资助机构	National Twelfth Five-Year Plan of China for Science and Technology Support Program [2012BAD14B11] ; National Twelfth Five-Year Plan of China for Science and Technology Support Program [2012BAD14B11] ; National Twelfth Five-Year Plan of China for Science and Technology Support Program [2012BAD14B11] ; National Twelfth Five-Year Plan of China for Science and Technology Support Program [2012BAD14B11]
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/8194]
专题	水保所科研产出--SCI_2018--SCI
通讯作者	Wu, FQ (reprint author), Northwest A&F Univ, Coll Resources & Environm, Yangling, Shaanxi, Peoples R China.
作者单位	1.Shanxi Univ Finance & Econ, Inst Publ Adm, Taiyuan, Shanxi, Peoples R China 2.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China 3.Northwest A&F Univ, Coll Resources & Environm, Yangling, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Taotao Li,Wu, FQ ,Yu Wang,et al. Life cycle assessment of large-scale and household biogas plants in northwest China[J]. JOURNAL OF CLEANER PRODUCTION,2018,192:221-235.
APA	Taotao Li,Wu, FQ ,Yu Wang,Xihui Wu,Xiaogang Tong,&Faqi Wu.(2018).Life cycle assessment of large-scale and household biogas plants in northwest China.JOURNAL OF CLEANER PRODUCTION,192,221-235.
MLA	Taotao Li,et al."Life cycle assessment of large-scale and household biogas plants in northwest China".JOURNAL OF CLEANER PRODUCTION 192(2018):221-235.