Integrated AHP-TOPSIS under a Fuzzy Environment for the Selection of Waste-To-Energy Technologies in Ghana: A Performance Analysis and Socio-Enviro-Economic Feasibility Study

Afrane, S; Ampah, JD; Agyekum, EB; Amoh, PO; Yusuf, AA; Fattah, IMR; Agbozo, E; Elgamli, E; Shouran, M; Mao, G; Kamel, S

Integrated AHP-TOPSIS under a Fuzzy Environment for the Selection of Waste-To-Energy Technologies in Ghana: A Performance Analysis and Socio-Enviro-Economic Feasibility Study

Afrane, S Ampah, JD Agyekum, EB Amoh, PO Yusuf, AA Fattah, IMR Agbozo, E Elgamli, E Shouran, M Mao, G Kamel, S

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Publisher:: MDPI AG
Publication Type:: Journal Article
Citation:: International Journal of Environmental Research and Public Health, 2022, 19, (14), pp. 8428
Issue Date:: 2022-07-10

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Field	Value	Language
dc.contributor.author	Afrane, S
dc.contributor.author	Ampah, JD
dc.contributor.author	Agyekum, EB
dc.contributor.author	Amoh, PO
dc.contributor.author	Yusuf, AA
dc.contributor.author	Fattah, IMR
dc.contributor.author	Agbozo, E
dc.contributor.author	Elgamli, E
dc.contributor.author	Shouran, M
dc.contributor.author	Mao, G
dc.contributor.author	Kamel, S
dc.date.accessioned	2022-08-03T03:52:22Z
dc.date.available	2022-08-03T03:52:22Z
dc.date.issued	2022-07-10
dc.identifier.citation	International Journal of Environmental Research and Public Health, 2022, 19, (14), pp. 8428
dc.identifier.issn	1661-7827
dc.identifier.issn	1660-4601
dc.identifier.uri	http://hdl.handle.net/10453/159543
dc.description.abstract	<jats:p>Energy recovery from waste presents a promising alternative for several countries, including Ghana, which has struggled with unsustainable waste treatment methods and an inadequate power supply for several decades. The current study adopts a comprehensive multi-criteria decision-making approach for the selection of an optimal waste-to-energy (WtE) technology for implementation in Ghana. Four WtE technologies are evaluated against twelve selection criteria. An integrated AHP-fuzzy TOPSIS method is applied to estimate the criteria’s weights and rank the WtE alternatives. From the AHP results, technical criteria obtained the highest priority weight, while social criteria emerged as the least important in the selection process. The overall ranking order of WtE technologies obtained by fuzzy TOPSIS is as follows: anaerobic digestion > gasification > pyrolysis > plasma gasification. The sensitivity analysis indicates highly consistent and sturdy results regarding the optimal selection. This study recommends adopting a hybrid system of anaerobic digestion and gasification technologies, as this offers a well-balanced system under all of the evaluation criteria compared to the standalone systems. The results of the current study may help the government of Ghana and other prospective investors select a suitable WtE technology, and could serve as an index system for future WtE research in Ghana.</jats:p>
dc.language	en
dc.publisher	MDPI AG
dc.relation.ispartof	International Journal of Environmental Research and Public Health
dc.relation.isbasedon	10.3390/ijerph19148428
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Toxicology
dc.title	Integrated AHP-TOPSIS under a Fuzzy Environment for the Selection of Waste-To-Energy Technologies in Ghana: A Performance Analysis and Socio-Enviro-Economic Feasibility Study
dc.type	Journal Article
utslib.citation.volume	19
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	open_access	*
dc.date.updated	2022-08-03T03:52:21Z
pubs.issue	14
pubs.publication-status	Published online
pubs.volume	19
utslib.citation.issue	14

Abstract:

Energy recovery from waste presents a promising alternative for several countries, including Ghana, which has struggled with unsustainable waste treatment methods and an inadequate power supply for several decades. The current study adopts a comprehensive multi-criteria decision-making approach for the selection of an optimal waste-to-energy (WtE) technology for implementation in Ghana. Four WtE technologies are evaluated against twelve selection criteria. An integrated AHP-fuzzy TOPSIS method is applied to estimate the criteria’s weights and rank the WtE alternatives. From the AHP results, technical criteria obtained the highest priority weight, while social criteria emerged as the least important in the selection process. The overall ranking order of WtE technologies obtained by fuzzy TOPSIS is as follows: anaerobic digestion > gasification > pyrolysis > plasma gasification. The sensitivity analysis indicates highly consistent and sturdy results regarding the optimal selection. This study recommends adopting a hybrid system of anaerobic digestion and gasification technologies, as this offers a well-balanced system under all of the evaluation criteria compared to the standalone systems. The results of the current study may help the government of Ghana and other prospective investors select a suitable WtE technology, and could serve as an index system for future WtE research in Ghana.

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http://hdl.handle.net/10453/159543