DOI: 10.1016/j.wasman.2019.10.012
论文题名: Environmental assessment of energy production from anaerobic digestion of pig manure at medium-scale using life cycle assessment
作者: Ramírez-Islas M.E. ; Güereca L.P. ; Sosa-Rodriguez F.S. ; Cobos-Peralta M.A.
刊名: Waste Management
ISSN: 0956053X
出版年: 2020
卷: 102 语种: 英语
英文关键词: Anaerobic digestion
; Biogas flaring
; Energy production
; LCA
; Medium-scale
; Pig manure
Scopus关键词: Anaerobic digestion
; Biogas
; Developing countries
; Ethylene
; Eutrophication
; Fertilizers
; Fossil fuel deposits
; Fossil fuels
; Global warming
; Mammals
; Manures
; Sensitivity analysis
; Electricity production
; Energy productions
; Environmental assessment
; Environmental benefits
; Life Cycle Assessment (LCA)
; Medium-scale
; Photochemical oxidation
; Pig manures
; Life cycle
; anaerobic digestion
; biogas
; composting
; developing world
; energy use
; environmental assessment
; life cycle analysis
; manure
; pig
; waste management
; agricultural land
; anaerobic digestion
; Article
; climate change
; controlled study
; energy yield
; environmental impact assessment
; gas flaring
; intermethod comparison
; life cycle assessment
; methodology
; Mexico
; nonhuman
; photooxidation
; pig
; priority journal
; sensitivity analysis
; swine manure
; waste management
; waste water management
; anaerobic growth
; animal
; environment
; manure
; Suidae
; biofuel
; Anaerobiosis
; Animals
; Biofuels
; Environment
; Manure
; Mexico
; Swine
英文摘要: This study assessed the potential environmental effects of energy production from pig manure treatment by anaerobic digestion at medium-scale based on the Life Cycle Assessment of a farm in Puebla, Mexico. It also compared the results from common practices of biogas flaring and conventional management. The analysis was based on one ton of pig manure in 4 systems: two with energy production, one with biogas flaring, and the last one conventional management. The use of biogas for electricity production combined with composting techniques generated the lowest net impacts on climate change of 272 kg CO2eq and photochemical oxidation of 0.056 kg ethylene eq, while the biogas flaring registered impacts of 344 kg CO2eq and 0.095 kg ethylene eq. The systems with energy production had environmental benefits on fossil resources depletion by avoiding the consumption of −863 MJ and −1608 MJ, but systems that burned biogas required fossil fuel consumption of 246 MJ from the grid. The conventional management generated the greatest environmental impacts, with eutrophication being the most important negative effect due to the manure discharge into water bodies (5.97 kg PO4eq). Sensitivity analysis shown that energy production could generate greater impacts on global warming compared to the case in which manure was used directly in crop fields, if emissions from unintentional releases and a poor digestate management are not avoided. Results are relevant for developing countries in which processes are carried out in rural and semi-industrial areas with lack of technical knowledge and economic resources. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159638
Appears in Collections: 气候变化与战略
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作者单位: Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco No. 186, Col. Vicentina. Iztapalapa, Mexico City, CP 09340, Mexico; Universidad Nacional Autónoma de México, Instituto de Ingeniería, Circuito Escolar s/n, Ciudad Universitaria, Coyoacán, Mexico City, CP 04510, Mexico; Universidad Autónoma Metropolitana-Azcapotzalco, Av. San Pablo 180 Col. Reynosa-Tamaulipas, Azcapotzalco, Mexico City, CP 02200, Mexico; Colegio de Postgraduados Campus Montecillo, Carretera México-Texcoco Km. 36.5, Montecillo, Texcoco, State of Mexico CP 56230, Mexico
Recommended Citation:
Ramírez-Islas M.E.,Güereca L.P.,Sosa-Rodriguez F.S.,et al. Environmental assessment of energy production from anaerobic digestion of pig manure at medium-scale using life cycle assessment[J]. Waste Management,2020-01-01,102