Carbon footprint and energy analysis of bio‐CH4 from a mixture of food waste and dairy manure in Denver, Colorado
Anaerobic digestion (AD) is a possible alternative to landfilling of food waste and conventional manure management in order to reduce methane emissions. We use the method of life cycle assessment in this study, and key results show that the AD Bio‐CH4 pathway has 15.5% lower greenhouse gas (GHG) emi...
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| Veröffentlicht in: | Environmental progress 2018-05, Vol.37 (3), p.1101-1111 |
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| container_title | Environmental progress |
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| creator | Ankathi, Sharath K. Potter, James S. Shonnard, David R. |
| description | Anaerobic digestion (AD) is a possible alternative to landfilling of food waste and conventional manure management in order to reduce methane emissions. We use the method of life cycle assessment in this study, and key results show that the AD Bio‐CH4 pathway has 15.5% lower greenhouse gas (GHG) emissions compared to the prior practice of composting of food waste and manure in Denver, CO. GHG emissions for Bio‐CH4 production from AD conversion of food waste and manure with avoiding of food waste landfilling and conventional management of dairy manure emits −3.5 kg CO2 equivalents/kg Bio‐CH4 assuming the electricity was generated using collected landfill gas. This emission intensity is favorably compared to that of fossil natural gas equal to 4.3 kg CO2 equivalents/kg CH4 equivalents. This method for carbon foot printing can be used to evaluate climate mitigation potential of other AD Bio‐CH4 projects. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 1101–1111, 2018 |
| doi_str_mv | 10.1002/ep.12762 |
| format | Article |
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We use the method of life cycle assessment in this study, and key results show that the AD Bio‐CH4 pathway has 15.5% lower greenhouse gas (GHG) emissions compared to the prior practice of composting of food waste and manure in Denver, CO. GHG emissions for Bio‐CH4 production from AD conversion of food waste and manure with avoiding of food waste landfilling and conventional management of dairy manure emits −3.5 kg CO2 equivalents/kg Bio‐CH4 assuming the electricity was generated using collected landfill gas. This emission intensity is favorably compared to that of fossil natural gas equal to 4.3 kg CO2 equivalents/kg CH4 equivalents. 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This method for carbon foot printing can be used to evaluate climate mitigation potential of other AD Bio‐CH4 projects. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 1101–1111, 2018</description><subject>Anaerobic digestion</subject><subject>anaerobic digestion of food waste and manure</subject><subject>Animal wastes</subject><subject>Carbon dioxide</subject><subject>Carbon footprint</subject><subject>Climate change</subject><subject>Composting</subject><subject>Dairy products</subject><subject>Emissions</subject><subject>Environmental impact</subject><subject>Equivalence</subject><subject>Food</subject><subject>Food conversion</subject><subject>Food production</subject><subject>Greenhouse effect</subject><subject>Greenhouse gases</subject><subject>Landfill gas</subject><subject>Landfills</subject><subject>Life cycle analysis</subject><subject>Life cycle assessment</subject><subject>Life cycle engineering</subject><subject>Life cycles</subject><subject>Manures</subject><subject>Methane</subject><subject>Mitigation</subject><subject>Natural gas</subject><subject>transient analysis</subject><subject>Waste disposal sites</subject><subject>Waste management</subject><issn>1944-7442</issn><issn>1944-7450</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNo9kM1Kw0AUhQdRsFbBRxhwa-r8daZZSvypUNCFroebzE1JSTJ1JrVm5yP4jD6JaSuuzoFzzoX7EXLJ2YQzJm5wPeHCaHFERjxVKjFqyo7_vRKn5CzGFWNaqjQdkZhByH1LS--7dajajkLrKLYYlv1goe5jFakvaV75n6_vbK5oGXxDgTbVZ7cJuMuGsaNbiB3u1w6q0NMG2l1ctfQO2w8M1zTztQ_g_Dk5KaGOePGnY_L2cP-azZPF8-NTdrtIlsKkIkEntDYGdQEaSi6RO1nONNfGcVNKiXlRoFKgcOoYFIzlWqhUSExBTZUGOSZXh7vr4N83GDu78psw_BStYMoolqYzPrSSQ2tb1djbAUIDobec2R1Pi2u752nvX_YqfwGXbGqm</recordid><startdate>201805</startdate><enddate>201805</enddate><creator>Ankathi, Sharath K.</creator><creator>Potter, James S.</creator><creator>Shonnard, David R.</creator><general>John Wiley and Sons, Limited</general><scope>7QO</scope><scope>7ST</scope><scope>7U6</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>M7N</scope><scope>P64</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0002-8289-0945</orcidid></search><sort><creationdate>201805</creationdate><title>Carbon footprint and energy analysis of bio‐CH4 from a mixture of food waste and dairy manure in Denver, Colorado</title><author>Ankathi, Sharath K. ; 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| subjects | Anaerobic digestion anaerobic digestion of food waste and manure Animal wastes Carbon dioxide Carbon footprint Climate change Composting Dairy products Emissions Environmental impact Equivalence Food Food conversion Food production Greenhouse effect Greenhouse gases Landfill gas Landfills Life cycle analysis Life cycle assessment Life cycle engineering Life cycles Manures Methane Mitigation Natural gas transient analysis Waste disposal sites Waste management |
| title | Carbon footprint and energy analysis of bio‐CH4 from a mixture of food waste and dairy manure in Denver, Colorado |
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