Simulation and optimization of anaerobic co-digestion of food waste with palm oil mill effluent for biogas production

Food waste (FW) utilized as substrate for anaerobic digestion (AD) to produce biogas is promising. Simultaneously, waste is handled and value-added products such as biogas and fertilizer are produced. Palm oil mill effluent (POME) is used as the co-substrate. This study aims to simulate the complete...

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Main Authors: Tiong, J.S.M., Chan, Y.J., Lim, J.W., Mohamad, M., Ho, C.-D., Ur Rahmah, A., Kiatkittipong, W., Sriseubsai, W., Kumakiri, I.
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Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.29616 /
Published: MDPI 2021
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121008773&doi=10.3390%2fsu132413665&partnerID=40&md5=ff197dbd3cba366c325e3586b0419952
http://eprints.utp.edu.my/29616/
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spelling utp-eprints.296162022-03-29T06:37:20Z Simulation and optimization of anaerobic co-digestion of food waste with palm oil mill effluent for biogas production Tiong, J.S.M. Chan, Y.J. Lim, J.W. Mohamad, M. Ho, C.-D. Ur Rahmah, A. Kiatkittipong, W. Sriseubsai, W. Kumakiri, I. Food waste (FW) utilized as substrate for anaerobic digestion (AD) to produce biogas is promising. Simultaneously, waste is handled and value-added products such as biogas and fertilizer are produced. Palm oil mill effluent (POME) is used as the co-substrate. This study aims to simulate the complete process flow of anaerobic co-digestion (AcoD), consisting of pre-treatment of feedstock, biogas upgrading, wastewater treatment and sludge dying using SuperPro Designer. Parameters, namely hydraulic retention time (HRT), recycle ratio of sludge, water to FW ratio (kg/kg) and co-substrate to FW ratio (kg/kg), would affect the performance of digester. The optimization of these parameters is performed using Design-Expert software, involving response surface methodology (RSM). The effects on responses such as methane flow, chemical oxygen demand (COD) and volatile solid (VS) removal efficiencies are analyzed. In treating 25,000 kg/h of feed, the optimized values for HRT, recycle ratio, water to feedstock ratio, POME to FW ratio are 37.2 days, 0.381, 0.027 and 0.004, respectively. The methane yield is 0.30 L CH4/g of COD removed, with COD and VS removal efficiencies of 81.5 and 68.9, respectively. The project is profitable, with a payback period of 6.14 years and net present value (NPV) of 5,680,000. A comprehensive understanding of AD matures it for commercialization purposes. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. MDPI 2021 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121008773&doi=10.3390%2fsu132413665&partnerID=40&md5=ff197dbd3cba366c325e3586b0419952 Tiong, J.S.M. and Chan, Y.J. and Lim, J.W. and Mohamad, M. and Ho, C.-D. and Ur Rahmah, A. and Kiatkittipong, W. and Sriseubsai, W. and Kumakiri, I. (2021) Simulation and optimization of anaerobic co-digestion of food waste with palm oil mill effluent for biogas production. Sustainability (Switzerland), 13 (24). http://eprints.utp.edu.my/29616/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Food waste (FW) utilized as substrate for anaerobic digestion (AD) to produce biogas is promising. Simultaneously, waste is handled and value-added products such as biogas and fertilizer are produced. Palm oil mill effluent (POME) is used as the co-substrate. This study aims to simulate the complete process flow of anaerobic co-digestion (AcoD), consisting of pre-treatment of feedstock, biogas upgrading, wastewater treatment and sludge dying using SuperPro Designer. Parameters, namely hydraulic retention time (HRT), recycle ratio of sludge, water to FW ratio (kg/kg) and co-substrate to FW ratio (kg/kg), would affect the performance of digester. The optimization of these parameters is performed using Design-Expert software, involving response surface methodology (RSM). The effects on responses such as methane flow, chemical oxygen demand (COD) and volatile solid (VS) removal efficiencies are analyzed. In treating 25,000 kg/h of feed, the optimized values for HRT, recycle ratio, water to feedstock ratio, POME to FW ratio are 37.2 days, 0.381, 0.027 and 0.004, respectively. The methane yield is 0.30 L CH4/g of COD removed, with COD and VS removal efficiencies of 81.5 and 68.9, respectively. The project is profitable, with a payback period of 6.14 years and net present value (NPV) of 5,680,000. A comprehensive understanding of AD matures it for commercialization purposes. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
format Article
author Tiong, J.S.M.
Chan, Y.J.
Lim, J.W.
Mohamad, M.
Ho, C.-D.
Ur Rahmah, A.
Kiatkittipong, W.
Sriseubsai, W.
Kumakiri, I.
spellingShingle Tiong, J.S.M.
Chan, Y.J.
Lim, J.W.
Mohamad, M.
Ho, C.-D.
Ur Rahmah, A.
Kiatkittipong, W.
Sriseubsai, W.
Kumakiri, I.
Simulation and optimization of anaerobic co-digestion of food waste with palm oil mill effluent for biogas production
author_sort Tiong, J.S.M.
title Simulation and optimization of anaerobic co-digestion of food waste with palm oil mill effluent for biogas production
title_short Simulation and optimization of anaerobic co-digestion of food waste with palm oil mill effluent for biogas production
title_full Simulation and optimization of anaerobic co-digestion of food waste with palm oil mill effluent for biogas production
title_fullStr Simulation and optimization of anaerobic co-digestion of food waste with palm oil mill effluent for biogas production
title_full_unstemmed Simulation and optimization of anaerobic co-digestion of food waste with palm oil mill effluent for biogas production
title_sort simulation and optimization of anaerobic co-digestion of food waste with palm oil mill effluent for biogas production
publisher MDPI
publishDate 2021
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121008773&doi=10.3390%2fsu132413665&partnerID=40&md5=ff197dbd3cba366c325e3586b0419952
http://eprints.utp.edu.my/29616/
_version_ 1741197272165646336
score 11.62408

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