Selection of Iron-based Additives for Enhanced Anaerobic Digestion of Sludge using the Multicriteria Decision-Making Approach

Enhancement of anaerobic digestion is vital for substrate solubilization and increased biogas production at a reduced cost. The use of several iron-based additives has proven effective in improving overall bio-digester performance during anaerobic digestion sludge. This study evaluates different iro...

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Autores principales:	Ugwu Samson, Enweremadu Christopher
Formato:	article
Lenguaje:	EN
Publicado:	Sciendo 2021
Materias:	additives entropy method iron-based madm topsis Renewable energy sources TJ807-830
Acceso en línea:	https://doaj.org/article/c9aeb4e6b2bb4c34a4847bf50ffef9f4
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id	oai:doaj.org-article:c9aeb4e6b2bb4c34a4847bf50ffef9f4
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spelling	oai:doaj.org-article:c9aeb4e6b2bb4c34a4847bf50ffef9f42021-12-05T14:11:10ZSelection of Iron-based Additives for Enhanced Anaerobic Digestion of Sludge using the Multicriteria Decision-Making Approach2255-883710.2478/rtuect-2021-0031https://doaj.org/article/c9aeb4e6b2bb4c34a4847bf50ffef9f42021-01-01T00:00:00Zhttps://doi.org/10.2478/rtuect-2021-0031https://doaj.org/toc/2255-8837Enhancement of anaerobic digestion is vital for substrate solubilization and increased biogas production at a reduced cost. The use of several iron-based additives has proven effective in improving overall bio-digester performance during anaerobic digestion sludge. This study evaluates different iron-based additives for the selection of the best additive from the alternatives using a multi-attribute decision making (MADM) approach. The weights of the attributes were computed with the entropy weight technique and the ranking of the alternatives were performed using order preference by similarity to ideal solution (TOPSIS) method. Five attributes and thirteen frequently used alternatives were selected for evaluation. The result showed that additive cost and dosages were assigned the highest weight of 62.37 % and 27.46 %, respectively. Based on the performance scores of 99.15 %, 20 mg/L of Fe3O4 nanoparticles (Fe3O4 NPs-20) ranked best (number 1) among considered alternatives for enhancement of anaerobic digestion of sludge. The outcome of this evaluation agrees with previous experimental results and suggests that the choice of an effective iron-based additive should be based on its biogas enhancement potential and cost-effectiveness (low dosage requirement and low price).Ugwu SamsonEnweremadu ChristopherSciendoarticleadditivesentropy methodiron-basedmadmtopsisRenewable energy sourcesTJ807-830ENEnvironmental and Climate Technologies, Vol 25, Iss 1, Pp 422-435 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	additives entropy method iron-based madm topsis Renewable energy sources TJ807-830
spellingShingle	additives entropy method iron-based madm topsis Renewable energy sources TJ807-830 Ugwu Samson Enweremadu Christopher Selection of Iron-based Additives for Enhanced Anaerobic Digestion of Sludge using the Multicriteria Decision-Making Approach
description	Enhancement of anaerobic digestion is vital for substrate solubilization and increased biogas production at a reduced cost. The use of several iron-based additives has proven effective in improving overall bio-digester performance during anaerobic digestion sludge. This study evaluates different iron-based additives for the selection of the best additive from the alternatives using a multi-attribute decision making (MADM) approach. The weights of the attributes were computed with the entropy weight technique and the ranking of the alternatives were performed using order preference by similarity to ideal solution (TOPSIS) method. Five attributes and thirteen frequently used alternatives were selected for evaluation. The result showed that additive cost and dosages were assigned the highest weight of 62.37 % and 27.46 %, respectively. Based on the performance scores of 99.15 %, 20 mg/L of Fe3O4 nanoparticles (Fe3O4 NPs-20) ranked best (number 1) among considered alternatives for enhancement of anaerobic digestion of sludge. The outcome of this evaluation agrees with previous experimental results and suggests that the choice of an effective iron-based additive should be based on its biogas enhancement potential and cost-effectiveness (low dosage requirement and low price).
format	article
author	Ugwu Samson Enweremadu Christopher
author_facet	Ugwu Samson Enweremadu Christopher
author_sort	Ugwu Samson
title	Selection of Iron-based Additives for Enhanced Anaerobic Digestion of Sludge using the Multicriteria Decision-Making Approach
title_short	Selection of Iron-based Additives for Enhanced Anaerobic Digestion of Sludge using the Multicriteria Decision-Making Approach
title_full	Selection of Iron-based Additives for Enhanced Anaerobic Digestion of Sludge using the Multicriteria Decision-Making Approach
title_fullStr	Selection of Iron-based Additives for Enhanced Anaerobic Digestion of Sludge using the Multicriteria Decision-Making Approach
title_full_unstemmed	Selection of Iron-based Additives for Enhanced Anaerobic Digestion of Sludge using the Multicriteria Decision-Making Approach
title_sort	selection of iron-based additives for enhanced anaerobic digestion of sludge using the multicriteria decision-making approach
publisher	Sciendo
publishDate	2021
url	https://doaj.org/article/c9aeb4e6b2bb4c34a4847bf50ffef9f4
work_keys_str_mv	AT ugwusamson selectionofironbasedadditivesforenhancedanaerobicdigestionofsludgeusingthemulticriteriadecisionmakingapproach AT enweremaduchristopher selectionofironbasedadditivesforenhancedanaerobicdigestionofsludgeusingthemulticriteriadecisionmakingapproach
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Selection of Iron-based Additives for Enhanced Anaerobic Digestion of Sludge using the Multicriteria Decision-Making Approach

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