Anaerobic digestion of municipal solid waste: Energy and carbon emission footprint

Anaerobic digestion (AD) serves as a promising alternative for waste treatment and a potential solution to improve the energy supply security. The feasibility of AD has been proven in some of the technologically and agriculturally advanced countries. However, development is still needed for worldwid...

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Main Author: Fan, Yee Van
Format: Article
Published: Academic Press 2018
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Online Access:http://eprints.utm.my/id/eprint/83965/
http://dx.doi.org/10.1016/j.jenvman.2018.07.005
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spelling my.utm.839652019-11-05T04:33:29Z http://eprints.utm.my/id/eprint/83965/ Anaerobic digestion of municipal solid waste: Energy and carbon emission footprint Fan, Yee Van TP Chemical technology Anaerobic digestion (AD) serves as a promising alternative for waste treatment and a potential solution to improve the energy supply security. The feasibility of AD has been proven in some of the technologically and agriculturally advanced countries. However, development is still needed for worldwide implementation, especially for AD process dealing with municipal solid waste (MSW). This paper reviews various approaches and stages in the AD of MSW, which used to optimise the biogas production and quality. The assessed stages include pre-treatment, digestion process, post-treatment as well as the waste collection and transportation. The latest approaches and integrated system to improve the AD process are also presented. The stages were assessed in a relatively quantitative manner. The range of energy requirement, carbon emission footprint and the percentage of enhancement are summarised. Thermal hydrolysis pre-treatment is identified to be less suitable for MSW (−5% to +15.4% enhancement), unless conducted in the two-phase AD system. Microwave pre-treatment shows consistent performance in elevating the biogas production of MSW, but the energy consumption (114.24–8,040 kWeh t−1) and carbon emission footprint (59.93–4,217.78 kg CO2 t−1 waste) are relatively high. Chemical (∼0.43 kWeh m−3) and membrane-based (∼0.45 kWeh m−3) post-treatments are suggested to be a lower energy consumption approach for upgrading the biogas. The feasibility in terms of cost (scale up) and other environmental impacts (non-CO2 footprint) needs to be further assessed. This study provides an overview to facilitate further development and extended implementation of AD. Academic Press 2018 Article PeerReviewed Fan, Yee Van (2018) Anaerobic digestion of municipal solid waste: Energy and carbon emission footprint. Journal of Environmental Management, 223 . pp. 888-897. ISSN 0301-4797 http://dx.doi.org/10.1016/j.jenvman.2018.07.005 DOI: 10.1016/j.jenvman.2018.07.005
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Fan, Yee Van
Anaerobic digestion of municipal solid waste: Energy and carbon emission footprint
description Anaerobic digestion (AD) serves as a promising alternative for waste treatment and a potential solution to improve the energy supply security. The feasibility of AD has been proven in some of the technologically and agriculturally advanced countries. However, development is still needed for worldwide implementation, especially for AD process dealing with municipal solid waste (MSW). This paper reviews various approaches and stages in the AD of MSW, which used to optimise the biogas production and quality. The assessed stages include pre-treatment, digestion process, post-treatment as well as the waste collection and transportation. The latest approaches and integrated system to improve the AD process are also presented. The stages were assessed in a relatively quantitative manner. The range of energy requirement, carbon emission footprint and the percentage of enhancement are summarised. Thermal hydrolysis pre-treatment is identified to be less suitable for MSW (−5% to +15.4% enhancement), unless conducted in the two-phase AD system. Microwave pre-treatment shows consistent performance in elevating the biogas production of MSW, but the energy consumption (114.24–8,040 kWeh t−1) and carbon emission footprint (59.93–4,217.78 kg CO2 t−1 waste) are relatively high. Chemical (∼0.43 kWeh m−3) and membrane-based (∼0.45 kWeh m−3) post-treatments are suggested to be a lower energy consumption approach for upgrading the biogas. The feasibility in terms of cost (scale up) and other environmental impacts (non-CO2 footprint) needs to be further assessed. This study provides an overview to facilitate further development and extended implementation of AD.
format Article
author Fan, Yee Van
author_facet Fan, Yee Van
author_sort Fan, Yee Van
title Anaerobic digestion of municipal solid waste: Energy and carbon emission footprint
title_short Anaerobic digestion of municipal solid waste: Energy and carbon emission footprint
title_full Anaerobic digestion of municipal solid waste: Energy and carbon emission footprint
title_fullStr Anaerobic digestion of municipal solid waste: Energy and carbon emission footprint
title_full_unstemmed Anaerobic digestion of municipal solid waste: Energy and carbon emission footprint
title_sort anaerobic digestion of municipal solid waste: energy and carbon emission footprint
publisher Academic Press
publishDate 2018
url http://eprints.utm.my/id/eprint/83965/
http://dx.doi.org/10.1016/j.jenvman.2018.07.005
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