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Mini-review on substrate & inoculum loadings for anaerobic co-digestion of food waste

Increasing production of food waste can lead to major environmental pollution if it is disposed without proper control in many countries. Food waste can be regarded as a resource rather than unwanted discard due to its high potential for resource recovery. Anaerobic digestion of food waste has shown...

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Main Authors: Bong, C. P. C., Lee, C. T., Ho, W. S., Hashim,, H., Klemeš, J. J., Ho, C. S.
Format: Article
Language:English
Published: Italian Association of Chemical Engineering - AIDIC 2017
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/80679/1/CassendraBong2017_Mini-ReviewonSubstrate%26InoculumLoadings.pdf
http://eprints.utm.my/id/eprint/80679/
http://dx.doi.org/10.3303/CET1756083
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spelling my.utm.806792019-06-27T06:15:20Z http://eprints.utm.my/id/eprint/80679/ Mini-review on substrate & inoculum loadings for anaerobic co-digestion of food waste Bong, C. P. C. Lee, C. T. Ho, W. S. Hashim,, H. Klemeš, J. J. Ho, C. S. TP Chemical technology Increasing production of food waste can lead to major environmental pollution if it is disposed without proper control in many countries. Food waste can be regarded as a resource rather than unwanted discard due to its high potential for resource recovery. Anaerobic digestion of food waste has shown promising potential for food waste treatment and valorisation by producing biogas as a renewable energy and digestate as fertiliser. Food waste has high biogas potential due to the presence of highly labile organic matter but this can lead to process instability. The process instability is often linked to the imbalance of process intermediates that affects the microbial community. Common parameters that are crucial for ensuring optimal metabolic activity of anaerobes includes temperature, pH, carbon-nitrogen ratio, organic loading rate, retention time and nutrient concentration. Co-digestion of food waste with other feedstocks are increasingly being practiced for better nutrient balance and reducing chances for rapid acidfication. The optimum conditions for the process has been shown to vary following different microbial inoculants and loadings of the respective substrates. This study aims to review only the effect of substrate and inoculum used during the AD of food waste, including the type of co-digested substrate, the mixing ratio, the microbial inoculant used and the substrate to inoculum ratio. Italian Association of Chemical Engineering - AIDIC 2017 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/80679/1/CassendraBong2017_Mini-ReviewonSubstrate%26InoculumLoadings.pdf Bong, C. P. C. and Lee, C. T. and Ho, W. S. and Hashim,, H. and Klemeš, J. J. and Ho, C. S. (2017) Mini-review on substrate & inoculum loadings for anaerobic co-digestion of food waste. Chemical Engineering Transactions, 56 . pp. 493-498. ISSN 2283-9216 http://dx.doi.org/10.3303/CET1756083 DOI:10.3303/CET1756083
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/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Bong, C. P. C.
Lee, C. T.
Ho, W. S.
Hashim,, H.
Klemeš, J. J.
Ho, C. S.
Mini-review on substrate & inoculum loadings for anaerobic co-digestion of food waste
description Increasing production of food waste can lead to major environmental pollution if it is disposed without proper control in many countries. Food waste can be regarded as a resource rather than unwanted discard due to its high potential for resource recovery. Anaerobic digestion of food waste has shown promising potential for food waste treatment and valorisation by producing biogas as a renewable energy and digestate as fertiliser. Food waste has high biogas potential due to the presence of highly labile organic matter but this can lead to process instability. The process instability is often linked to the imbalance of process intermediates that affects the microbial community. Common parameters that are crucial for ensuring optimal metabolic activity of anaerobes includes temperature, pH, carbon-nitrogen ratio, organic loading rate, retention time and nutrient concentration. Co-digestion of food waste with other feedstocks are increasingly being practiced for better nutrient balance and reducing chances for rapid acidfication. The optimum conditions for the process has been shown to vary following different microbial inoculants and loadings of the respective substrates. This study aims to review only the effect of substrate and inoculum used during the AD of food waste, including the type of co-digested substrate, the mixing ratio, the microbial inoculant used and the substrate to inoculum ratio.
format Article
author Bong, C. P. C.
Lee, C. T.
Ho, W. S.
Hashim,, H.
Klemeš, J. J.
Ho, C. S.
author_facet Bong, C. P. C.
Lee, C. T.
Ho, W. S.
Hashim,, H.
Klemeš, J. J.
Ho, C. S.
author_sort Bong, C. P. C.
title Mini-review on substrate & inoculum loadings for anaerobic co-digestion of food waste
title_short Mini-review on substrate & inoculum loadings for anaerobic co-digestion of food waste
title_full Mini-review on substrate & inoculum loadings for anaerobic co-digestion of food waste
title_fullStr Mini-review on substrate & inoculum loadings for anaerobic co-digestion of food waste
title_full_unstemmed Mini-review on substrate & inoculum loadings for anaerobic co-digestion of food waste
title_sort mini-review on substrate & inoculum loadings for anaerobic co-digestion of food waste
publisher Italian Association of Chemical Engineering - AIDIC
publishDate 2017
url http://eprints.utm.my/id/eprint/80679/1/CassendraBong2017_Mini-ReviewonSubstrate%26InoculumLoadings.pdf
http://eprints.utm.my/id/eprint/80679/
http://dx.doi.org/10.3303/CET1756083
_version_ 1643658484264206336
score 13.211869

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