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Life Cycle Assessment and Techno-Economic Analysis for Anaerobic Digestion as Cow Manure Management System

Clean electricity is generated by the anaerobic digestion of biomass waste. The environmental impacts of various biomass waste feedstocks vary, while co-digestion has been reported to improve anaerobic digestion performance. A consequential life-cycle assessment (LCA) and techno-economic analysis (T...

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Main Authors: Tan, W.E., Liew, P.Y., Tan, L.S., Woon, K.S., Mohammad Rozali, N.E., Ho, W.S., NorRuwaida, J.
Format: Article
Published: 2022
Online Access:http://scholars.utp.edu.my/id/eprint/34282/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85144609087&doi=10.3390%2fen15249586&partnerID=40&md5=95ed8c63dd223b5d75093e9eab38e834
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spelling oai:scholars.utp.edu.my:342822023-01-09T05:23:22Z http://scholars.utp.edu.my/id/eprint/34282/ Life Cycle Assessment and Techno-Economic Analysis for Anaerobic Digestion as Cow Manure Management System Tan, W.E. Liew, P.Y. Tan, L.S. Woon, K.S. Mohammad Rozali, N.E. Ho, W.S. NorRuwaida, J. Clean electricity is generated by the anaerobic digestion of biomass waste. The environmental impacts of various biomass waste feedstocks vary, while co-digestion has been reported to improve anaerobic digestion performance. A consequential life-cycle assessment (LCA) and techno-economic analysis (TEA) are carried out for cow manure waste management for a cow farm. Three scenarios are considered in this study: (S1) mono-digestion of cow manure, (S2) co-digestion of cow manure and maize silage, and (S3) co-digestion of cow manure with cow feed waste, sewage sludge, and returned dairy products. The LCA aims to quantify the environmental impact of each MWh of electricity generated, assuming the plant is located in Malaysia, using OpenLCA software. The TEA economic parameters are quantified and compared between the three scenarios. Net present value (NPV), Internal Return Rate (IRR), and Return of Investment (ROI) are examined. Among the three scenarios, S2 with maize cultivation has a higher environmental impact due to its higher energy requirements. With the integration of closed digestate storage and renewable energy-powered electricity, S3 has the best environmental performance in global warming, eutrophication and acidification. S3 is found to be most economically viable, with MYR 1.28 million NPV, 14 IRR, and 15 ROI, and a Payback Period of 6.56 years with an OPEX of MYR 3491.82/MWh. © 2022 by the authors. 2022 Article NonPeerReviewed Tan, W.E. and Liew, P.Y. and Tan, L.S. and Woon, K.S. and Mohammad Rozali, N.E. and Ho, W.S. and NorRuwaida, J. (2022) Life Cycle Assessment and Techno-Economic Analysis for Anaerobic Digestion as Cow Manure Management System. Energies, 15 (24). https://www.scopus.com/inward/record.uri?eid=2-s2.0-85144609087&doi=10.3390%2fen15249586&partnerID=40&md5=95ed8c63dd223b5d75093e9eab38e834 10.3390/en15249586 10.3390/en15249586 10.3390/en15249586
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description Clean electricity is generated by the anaerobic digestion of biomass waste. The environmental impacts of various biomass waste feedstocks vary, while co-digestion has been reported to improve anaerobic digestion performance. A consequential life-cycle assessment (LCA) and techno-economic analysis (TEA) are carried out for cow manure waste management for a cow farm. Three scenarios are considered in this study: (S1) mono-digestion of cow manure, (S2) co-digestion of cow manure and maize silage, and (S3) co-digestion of cow manure with cow feed waste, sewage sludge, and returned dairy products. The LCA aims to quantify the environmental impact of each MWh of electricity generated, assuming the plant is located in Malaysia, using OpenLCA software. The TEA economic parameters are quantified and compared between the three scenarios. Net present value (NPV), Internal Return Rate (IRR), and Return of Investment (ROI) are examined. Among the three scenarios, S2 with maize cultivation has a higher environmental impact due to its higher energy requirements. With the integration of closed digestate storage and renewable energy-powered electricity, S3 has the best environmental performance in global warming, eutrophication and acidification. S3 is found to be most economically viable, with MYR 1.28 million NPV, 14 IRR, and 15 ROI, and a Payback Period of 6.56 years with an OPEX of MYR 3491.82/MWh. © 2022 by the authors.
format Article
author Tan, W.E.
Liew, P.Y.
Tan, L.S.
Woon, K.S.
Mohammad Rozali, N.E.
Ho, W.S.
NorRuwaida, J.
spellingShingle Tan, W.E.
Liew, P.Y.
Tan, L.S.
Woon, K.S.
Mohammad Rozali, N.E.
Ho, W.S.
NorRuwaida, J.
Life Cycle Assessment and Techno-Economic Analysis for Anaerobic Digestion as Cow Manure Management System
author_facet Tan, W.E.
Liew, P.Y.
Tan, L.S.
Woon, K.S.
Mohammad Rozali, N.E.
Ho, W.S.
NorRuwaida, J.
author_sort Tan, W.E.
title Life Cycle Assessment and Techno-Economic Analysis for Anaerobic Digestion as Cow Manure Management System
title_short Life Cycle Assessment and Techno-Economic Analysis for Anaerobic Digestion as Cow Manure Management System
title_full Life Cycle Assessment and Techno-Economic Analysis for Anaerobic Digestion as Cow Manure Management System
title_fullStr Life Cycle Assessment and Techno-Economic Analysis for Anaerobic Digestion as Cow Manure Management System
title_full_unstemmed Life Cycle Assessment and Techno-Economic Analysis for Anaerobic Digestion as Cow Manure Management System
title_sort life cycle assessment and techno-economic analysis for anaerobic digestion as cow manure management system
publishDate 2022
url http://scholars.utp.edu.my/id/eprint/34282/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85144609087&doi=10.3390%2fen15249586&partnerID=40&md5=95ed8c63dd223b5d75093e9eab38e834
_version_ 1754532152154783744
score 13.222552

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