Process simulation of anaerobic digestion for bioliquid production from food waste

Anaerobic digestion is one of the most widespread technologies to treat organic waste. It uses enzymes to solubilize particulate organic compounds so that they can be easily separated from non-biodegradable waste such as plastic, metals and textiles. There are four steps in the anaerobic digestion p...

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Main Authors:	Noorlisa, Harun, W. H. W., Ibrahim, Norazwina, Zainol
Format:	Conference or Workshop Item
Language:	English
Published:	2018
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/21295/ http://umpir.ump.edu.my/id/eprint/21295/1/17.1%20Process%20simulation%20of%20anaerobic%20digestion%20for%20bioliquid%20production%20from%20food%20waste.pdf

id	ump-21295
recordtype	eprints
spelling	ump-212952018-09-20T02:29:47Z http://umpir.ump.edu.my/id/eprint/21295/ Process simulation of anaerobic digestion for bioliquid production from food waste Noorlisa, Harun W. H. W., Ibrahim Norazwina, Zainol TP Chemical technology Anaerobic digestion is one of the most widespread technologies to treat organic waste. It uses enzymes to solubilize particulate organic compounds so that they can be easily separated from non-biodegradable waste such as plastic, metals and textiles. There are four steps in the anaerobic digestion process: hydrolysis, acidogenesis, acetogenesis and methanogenesis. The complex substrates such as proteins, carbohydrates and fats are hydrolyzed into their respective monomers, such as amino acids, glucose and fatty acids. The hydrolyzed monomers then are converted into different volatile fatty acids (VFA), later the VFA are converted into carbon dioxide, acetic acid, and hydrogen. Food waste is the main composition of municipal solid waste which comprises 49% of total waste [1]. Food waste is a typical form of organic matter with a high potential for energy production through anaerobic degradation [2]. This study aims to model the anaerobic digestion process to transform the food waste into bioliquid. A simulation of the anaerobic digestion process has been carried out using RSTOIC and RCSTR reactors in Aspen Plus. The hydrolysis reactions occur in RSTOIC reactor meanwhile amino acid degradation, acidogenic and acetogenic reactions are implemented in RCSTR reactor. The biochemical reactions and reaction rate equations of anaerobic digestion model No. 1 (ADM1) developed by the international water association (IWA) were employed in this work. The simulation results were validated with experimental data [3]. The amount of dry matter content in bioliquid was 20wt% which mainly consists of VFA. The high amount of VFA is important to extent the process for biogas production. Sensitivity analysis has been performed in order to study the effect of residence time for the production of organic liquid fraction (bioliquid). The amount of bioliquid produced was increased as residence time was increased as depicted in Figure 1. The longer residence time will allow the enzymatic process to be more efficient where the bonds of the organic materials will be broken and hydrolysis will occur [4]. 2018 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/21295/1/17.1%20Process%20simulation%20of%20anaerobic%20digestion%20for%20bioliquid%20production%20from%20food%20waste.pdf Noorlisa, Harun and W. H. W., Ibrahim and Norazwina, Zainol (2018) Process simulation of anaerobic digestion for bioliquid production from food waste. In: 4th International Conference Of Chemical Engineering And Industrial Biotechnology (ICCEIB 2018), 1-2 Aug 2018 , Seri Pacific Hotel, Kuala Lumpur. p. 1..
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Noorlisa, Harun W. H. W., Ibrahim Norazwina, Zainol Process simulation of anaerobic digestion for bioliquid production from food waste
description	Anaerobic digestion is one of the most widespread technologies to treat organic waste. It uses enzymes to solubilize particulate organic compounds so that they can be easily separated from non-biodegradable waste such as plastic, metals and textiles. There are four steps in the anaerobic digestion process: hydrolysis, acidogenesis, acetogenesis and methanogenesis. The complex substrates such as proteins, carbohydrates and fats are hydrolyzed into their respective monomers, such as amino acids, glucose and fatty acids. The hydrolyzed monomers then are converted into different volatile fatty acids (VFA), later the VFA are converted into carbon dioxide, acetic acid, and hydrogen. Food waste is the main composition of municipal solid waste which comprises 49% of total waste [1]. Food waste is a typical form of organic matter with a high potential for energy production through anaerobic degradation [2]. This study aims to model the anaerobic digestion process to transform the food waste into bioliquid. A simulation of the anaerobic digestion process has been carried out using RSTOIC and RCSTR reactors in Aspen Plus. The hydrolysis reactions occur in RSTOIC reactor meanwhile amino acid degradation, acidogenic and acetogenic reactions are implemented in RCSTR reactor. The biochemical reactions and reaction rate equations of anaerobic digestion model No. 1 (ADM1) developed by the international water association (IWA) were employed in this work. The simulation results were validated with experimental data [3]. The amount of dry matter content in bioliquid was 20wt% which mainly consists of VFA. The high amount of VFA is important to extent the process for biogas production. Sensitivity analysis has been performed in order to study the effect of residence time for the production of organic liquid fraction (bioliquid). The amount of bioliquid produced was increased as residence time was increased as depicted in Figure 1. The longer residence time will allow the enzymatic process to be more efficient where the bonds of the organic materials will be broken and hydrolysis will occur [4].
format	Conference or Workshop Item
author	Noorlisa, Harun W. H. W., Ibrahim Norazwina, Zainol
author_facet	Noorlisa, Harun W. H. W., Ibrahim Norazwina, Zainol
author_sort	Noorlisa, Harun
title	Process simulation of anaerobic digestion for bioliquid production from food waste
title_short	Process simulation of anaerobic digestion for bioliquid production from food waste
title_full	Process simulation of anaerobic digestion for bioliquid production from food waste
title_fullStr	Process simulation of anaerobic digestion for bioliquid production from food waste
title_full_unstemmed	Process simulation of anaerobic digestion for bioliquid production from food waste
title_sort	process simulation of anaerobic digestion for bioliquid production from food waste
publishDate	2018
url	http://umpir.ump.edu.my/id/eprint/21295/ http://umpir.ump.edu.my/id/eprint/21295/1/17.1%20Process%20simulation%20of%20anaerobic%20digestion%20for%20bioliquid%20production%20from%20food%20waste.pdf
first_indexed	2023-09-18T22:31:11Z
last_indexed	2023-09-18T22:31:11Z
_version_	1777416295957921792

Process simulation of anaerobic digestion for bioliquid production from food waste

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