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Mixing effect of food waste and empty fruit bunches (EFB) on the biogas production from anaerobic co-digestion / Muhamad Ariff Amir Hamzah

Anaerobic digestion is a biochemical conversion process which utilizes biomass such as food waste and agricultural wastes, and converts them into biogas, a mixture of methane gas (CH4) and carbon dioxide (CO2), under the absence of oxygen. This process, although possess a good potential for renewabl...

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Main Author: Amir Hamzah, Muhamad Ariff
Format: Thesis
Language:English
Published: 2022
Subjects:
Agricultural wastes
Biomass
Online Access:https://ir.uitm.edu.my/id/eprint/75914/1/75914.pdf
https://ir.uitm.edu.my/id/eprint/75914/
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spelling my.uitm.ir.759142023-05-09T07:32:05Z https://ir.uitm.edu.my/id/eprint/75914/ Mixing effect of food waste and empty fruit bunches (EFB) on the biogas production from anaerobic co-digestion / Muhamad Ariff Amir Hamzah Amir Hamzah, Muhamad Ariff Agricultural wastes Biomass Anaerobic digestion is a biochemical conversion process which utilizes biomass such as food waste and agricultural wastes, and converts them into biogas, a mixture of methane gas (CH4) and carbon dioxide (CO2), under the absence of oxygen. This process, although possess a good potential for renewable and sustainable energy generation, is sensitive and highly dependent on the biomass feedstock used, as well as the operating conditions. Hence, in this research, anaerobic digestion experiments were conducted under different feedstock conditions and operating conditions, to determine its effect on the overall biogas productivity. The two main feedstocks used were food waste and empty fruit bunches (EFB), an agricultural waste from palm oil, and were subjected to characterization to determine whether its compositions were favourable to be used in anaerobic digestion. Once characterized, the two feedstocks were mixed at seven different mixing ratios, known as anaerobic co-digestion, to determine the effect of co-digestion on the biogas production. In addition to co-digestion, rice husk biochar adsorbent was added into the anaerobic co-digestion process as a supplementary material, to determine the effect of biochar addition on the biogas production. To further investigate the effect of co-digestion, Response Surface Methodology (RSM) was used to develop a mathematical model which best described the effect of co-digestion on the biogas production. Characterization of the feedstocks in terms of elemental analysis, food waste nutrients analysis, and EFB lignocellulosic analysis determined that the two feedstocks were suitable to be used for anaerobic digestion. When the two feedstocks were mixed under co-digestion, an increment in biogas production, 51%-154%, compared to single feedstock digestion, was recorded. When biochar was added into the co-digested mixture, a further 6.7% increment in biogas production was recorded. From the RSM analysis based on effect of co-digestion, a base-log (log10) transformed model was developed with high accuracy, R2 value of 0.9682, in which both food waste and EFB weights, and their combined weight ratios, were found to be significant factors in determining the overall biogas production. 2022 Thesis NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/75914/1/75914.pdf Mixing effect of food waste and empty fruit bunches (EFB) on the biogas production from anaerobic co-digestion / Muhamad Ariff Amir Hamzah. (2022) Masters thesis, thesis, Universiti Teknologi MARA (UiTM). <http://terminalib.uitm.edu.my/75914.pdf>
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Agricultural wastes
Biomass
spellingShingle Agricultural wastes
Biomass
Amir Hamzah, Muhamad Ariff
Mixing effect of food waste and empty fruit bunches (EFB) on the biogas production from anaerobic co-digestion / Muhamad Ariff Amir Hamzah
description Anaerobic digestion is a biochemical conversion process which utilizes biomass such as food waste and agricultural wastes, and converts them into biogas, a mixture of methane gas (CH4) and carbon dioxide (CO2), under the absence of oxygen. This process, although possess a good potential for renewable and sustainable energy generation, is sensitive and highly dependent on the biomass feedstock used, as well as the operating conditions. Hence, in this research, anaerobic digestion experiments were conducted under different feedstock conditions and operating conditions, to determine its effect on the overall biogas productivity. The two main feedstocks used were food waste and empty fruit bunches (EFB), an agricultural waste from palm oil, and were subjected to characterization to determine whether its compositions were favourable to be used in anaerobic digestion. Once characterized, the two feedstocks were mixed at seven different mixing ratios, known as anaerobic co-digestion, to determine the effect of co-digestion on the biogas production. In addition to co-digestion, rice husk biochar adsorbent was added into the anaerobic co-digestion process as a supplementary material, to determine the effect of biochar addition on the biogas production. To further investigate the effect of co-digestion, Response Surface Methodology (RSM) was used to develop a mathematical model which best described the effect of co-digestion on the biogas production. Characterization of the feedstocks in terms of elemental analysis, food waste nutrients analysis, and EFB lignocellulosic analysis determined that the two feedstocks were suitable to be used for anaerobic digestion. When the two feedstocks were mixed under co-digestion, an increment in biogas production, 51%-154%, compared to single feedstock digestion, was recorded. When biochar was added into the co-digested mixture, a further 6.7% increment in biogas production was recorded. From the RSM analysis based on effect of co-digestion, a base-log (log10) transformed model was developed with high accuracy, R2 value of 0.9682, in which both food waste and EFB weights, and their combined weight ratios, were found to be significant factors in determining the overall biogas production.
format Thesis
author Amir Hamzah, Muhamad Ariff
author_facet Amir Hamzah, Muhamad Ariff
author_sort Amir Hamzah, Muhamad Ariff
title Mixing effect of food waste and empty fruit bunches (EFB) on the biogas production from anaerobic co-digestion / Muhamad Ariff Amir Hamzah
title_short Mixing effect of food waste and empty fruit bunches (EFB) on the biogas production from anaerobic co-digestion / Muhamad Ariff Amir Hamzah
title_full Mixing effect of food waste and empty fruit bunches (EFB) on the biogas production from anaerobic co-digestion / Muhamad Ariff Amir Hamzah
title_fullStr Mixing effect of food waste and empty fruit bunches (EFB) on the biogas production from anaerobic co-digestion / Muhamad Ariff Amir Hamzah
title_full_unstemmed Mixing effect of food waste and empty fruit bunches (EFB) on the biogas production from anaerobic co-digestion / Muhamad Ariff Amir Hamzah
title_sort mixing effect of food waste and empty fruit bunches (efb) on the biogas production from anaerobic co-digestion / muhamad ariff amir hamzah
publishDate 2022
url https://ir.uitm.edu.my/id/eprint/75914/1/75914.pdf
https://ir.uitm.edu.my/id/eprint/75914/
_version_ 1768011565609517056
score 13.211869

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