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Effects of substrate to inoculum ratio on Phosphorus Recovery from Different Composition of Food Waste using Anaerobic Batch Digestion

Anaerobic digestion is a process by which microorganisms break down biodegradable material in the absence of oxygen. The process involves hydrolysis, acidogenesis, acedogenesis and methanogenesis stages. Anaerobic digestion of food waste has been widely investigated for biogas recovery but limited s...

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Main Authors: R Selaman, Newati Wid
Format: Conference or Workshop Item
Language:English
English
Published: 2019
Subjects:
TD783-812.5 Municipal refuse. Solid wastes
Online Access:https://eprints.ums.edu.my/id/eprint/34681/1/Abstract.pdf
https://eprints.ums.edu.my/id/eprint/34681/2/Full%20text.pdf
https://eprints.ums.edu.my/id/eprint/34681/
https://iopscience.iop.org/article/10.1088/1742-6596/1358/1/012030#:~:text=The%20results%20indicate%20that%20substrate,%25%20and%2026.2%25%2C%20respectively.
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spelling my.ums.eprints.346812022-11-16T01:03:58Z https://eprints.ums.edu.my/id/eprint/34681/ Effects of substrate to inoculum ratio on Phosphorus Recovery from Different Composition of Food Waste using Anaerobic Batch Digestion R Selaman Newati Wid TD783-812.5 Municipal refuse. Solid wastes Anaerobic digestion is a process by which microorganisms break down biodegradable material in the absence of oxygen. The process involves hydrolysis, acidogenesis, acedogenesis and methanogenesis stages. Anaerobic digestion of food waste has been widely investigated for biogas recovery but limited study was performed on phosphorus recovery. Substrate to inoculum ratio is a very crucial parameter in anaerobic digestion in an attempt to recover phosphorus as it highly influences the production of organic acids during acidogenesis. Therefore, this study was carried out to investigate phosphorus recovery at different ratio of substrate to inoculum, where substrates was fixed to ratio 1.0 while inoculum ratio varied to 1.5, 2.0, 2.5, 3.0, 3.5 throughout the digestion process. The main substrate used in the anaerobic digestion was food waste which was segregated into different composition namely carbohydrates rich-food waste, fiber rich-food waste and protein rich-food waste. The phosphorus recovery was performed using anaerobic batch digester at mesophilic (35±1oC) condition and pH= 6.0 for 15 days. Semi treated palm oil mill effluent (POME) was used as the inoculum to boost up the anaerobic digestion. The results indicate that substrate to inoculum ratio (1.0 : 2.0) was the optimum ratio to recover phosphorus, where protein rich-food waste shows the phosphorus recovery was about 40.8%, followed by carbohydrate rich-food waste and fibre rich-food waste with 32.8% and 26.2%, respectively. This study is very important in resources recovery from wastes as it provides information on a new strategies for phosphorus recovery from food waste 2019 Conference or Workshop Item PeerReviewed text en https://eprints.ums.edu.my/id/eprint/34681/1/Abstract.pdf text en https://eprints.ums.edu.my/id/eprint/34681/2/Full%20text.pdf R Selaman and Newati Wid (2019) Effects of substrate to inoculum ratio on Phosphorus Recovery from Different Composition of Food Waste using Anaerobic Batch Digestion. In: 12th Seminar on Science and Technology, 2 - 3 October 2018, Kota Kinabalu, Sabah, Malaysia. https://iopscience.iop.org/article/10.1088/1742-6596/1358/1/012030#:~:text=The%20results%20indicate%20that%20substrate,%25%20and%2026.2%25%2C%20respectively.
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic TD783-812.5 Municipal refuse. Solid wastes
spellingShingle TD783-812.5 Municipal refuse. Solid wastes
R Selaman
Newati Wid
Effects of substrate to inoculum ratio on Phosphorus Recovery from Different Composition of Food Waste using Anaerobic Batch Digestion
description Anaerobic digestion is a process by which microorganisms break down biodegradable material in the absence of oxygen. The process involves hydrolysis, acidogenesis, acedogenesis and methanogenesis stages. Anaerobic digestion of food waste has been widely investigated for biogas recovery but limited study was performed on phosphorus recovery. Substrate to inoculum ratio is a very crucial parameter in anaerobic digestion in an attempt to recover phosphorus as it highly influences the production of organic acids during acidogenesis. Therefore, this study was carried out to investigate phosphorus recovery at different ratio of substrate to inoculum, where substrates was fixed to ratio 1.0 while inoculum ratio varied to 1.5, 2.0, 2.5, 3.0, 3.5 throughout the digestion process. The main substrate used in the anaerobic digestion was food waste which was segregated into different composition namely carbohydrates rich-food waste, fiber rich-food waste and protein rich-food waste. The phosphorus recovery was performed using anaerobic batch digester at mesophilic (35±1oC) condition and pH= 6.0 for 15 days. Semi treated palm oil mill effluent (POME) was used as the inoculum to boost up the anaerobic digestion. The results indicate that substrate to inoculum ratio (1.0 : 2.0) was the optimum ratio to recover phosphorus, where protein rich-food waste shows the phosphorus recovery was about 40.8%, followed by carbohydrate rich-food waste and fibre rich-food waste with 32.8% and 26.2%, respectively. This study is very important in resources recovery from wastes as it provides information on a new strategies for phosphorus recovery from food waste
format Conference or Workshop Item
author R Selaman
Newati Wid
author_facet R Selaman
Newati Wid
author_sort R Selaman
title Effects of substrate to inoculum ratio on Phosphorus Recovery from Different Composition of Food Waste using Anaerobic Batch Digestion
title_short Effects of substrate to inoculum ratio on Phosphorus Recovery from Different Composition of Food Waste using Anaerobic Batch Digestion
title_full Effects of substrate to inoculum ratio on Phosphorus Recovery from Different Composition of Food Waste using Anaerobic Batch Digestion
title_fullStr Effects of substrate to inoculum ratio on Phosphorus Recovery from Different Composition of Food Waste using Anaerobic Batch Digestion
title_full_unstemmed Effects of substrate to inoculum ratio on Phosphorus Recovery from Different Composition of Food Waste using Anaerobic Batch Digestion
title_sort effects of substrate to inoculum ratio on phosphorus recovery from different composition of food waste using anaerobic batch digestion
publishDate 2019
url https://eprints.ums.edu.my/id/eprint/34681/1/Abstract.pdf
https://eprints.ums.edu.my/id/eprint/34681/2/Full%20text.pdf
https://eprints.ums.edu.my/id/eprint/34681/
https://iopscience.iop.org/article/10.1088/1742-6596/1358/1/012030#:~:text=The%20results%20indicate%20that%20substrate,%25%20and%2026.2%25%2C%20respectively.
_version_ 1760231327945195520
score 13.211869

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