eprintid: 14161
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/41/61
datestamp: 2023-11-10 03:28:44
lastmod: 2023-11-10 03:28:44
status_changed: 2023-11-10 01:56:10
type: article
metadata_visibility: show
creators_name: Tiong, J.S.M.
creators_name: Chan, Y.J.
creators_name: Lim, J.W.
creators_name: Mohamad, M.
creators_name: Ho, C.-D.
creators_name: Ur Rahmah, A.
creators_name: Kiatkittipong, W.
creators_name: Sriseubsai, W.
creators_name: Kumakiri, I.
title: Simulation and optimization of anaerobic co-digestion of food waste with palm oil mill effluent for biogas production
ispublished: pub
keywords: anaerobic digestion; biogas; chemical oxygen demand; concentration (composition); effluent; experimental study; food waste; optimization; pollutant removal; response surface methodology; simulated annealing; simulation
note: cited By 13
abstract: 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.
date: 2021
publisher: MDPI
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121008773&doi=10.3390%2fsu132413665&partnerID=40&md5=ff197dbd3cba366c325e3586b0419952
id_number: 10.3390/su132413665
full_text_status: none
publication: Sustainability (Switzerland)
volume: 13
number: 24
refereed: TRUE
issn: 20711050
citation:   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).   ISSN 20711050