ISWC OpenIR  > 水保所科研产出--SCI  > 2018--SCI
Life cycle assessment of large-scale and household biogas plants in northwest China
Yu Wang1; Xihui Wu2; Xiaogang Tong3; Taotao Li1; Faqi Wu3; Wu, FQ (reprint author), Northwest A&F Univ, Coll Resources & Environm, Yangling, Shaanxi, Peoples R China.
SubtypeArticle
2018
Source PublicationJOURNAL OF CLEANER PRODUCTION
ISSN0959-6526
description.correspondentemailwufaqi@263.net
Volume192Pages:221-235
AbstractIn 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.
KeywordLife Cycle Assessment Energy Use Environmental Impact Potential Large-scale Biogas Production Household Biogas Production
Subject AreaScience & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
DOI10.1016/j.jclepro.2018.04.264
Indexed BySCI
Publication PlaceTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Language英语
WOS IDWOS:000435619400019
PublisherELSEVIER SCI LTD
Funding OrganizationNational 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]
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Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8194
Collection水保所科研产出--SCI_2018--SCI
Corresponding AuthorWu, FQ (reprint author), Northwest A&F Univ, Coll Resources & Environm, Yangling, Shaanxi, Peoples R China.
Affiliation1.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China
2.Shanxi Univ Finance & Econ, Inst Publ Adm, Taiyuan, Shanxi, Peoples R China
3.Northwest A&F Univ, Coll Resources & Environm, Yangling, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Yu Wang,Xihui Wu,Xiaogang Tong,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 Yu Wang,Xihui Wu,Xiaogang Tong,Taotao Li,Faqi Wu,&Wu, FQ .(2018).Life cycle assessment of large-scale and household biogas plants in northwest China.JOURNAL OF CLEANER PRODUCTION,192,221-235.
MLA Yu Wang,et al."Life cycle assessment of large-scale and household biogas plants in northwest China".JOURNAL OF CLEANER PRODUCTION 192(2018):221-235.
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