eprintid: 14792
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/47/92
datestamp: 2023-11-10 03:29:23
lastmod: 2023-11-10 03:29:23
status_changed: 2023-11-10 01:57:49
type: article
metadata_visibility: show
creators_name: Chong, J.W.R.
creators_name: Chan, Y.J.
creators_name: Chong, S.
creators_name: Ho, Y.C.
creators_name: Mohamad, M.
creators_name: Tan, W.N.
creators_name: Cheng, C.K.
creators_name: Lim, J.W.
title: Simulation and optimisation of integrated anaerobic-aerobic bioreactor (IAAB) for the treatment of palm oil mill effluent
ispublished: pub
note: cited By 13
abstract: This study highlights an innovative piece of hybrid technology, whereby the combination of anaerobic and aerobic processes into a single reactor, namely, the integrated anaerobic�aerobic bioreactor (IAAB) can surpass the limits of conventional methods treating palm oil mill effluent (POME). Optimisation of IAAB using SuperPro Designer V9 simulator for maximum biogas yield while addressing its economic and environmental trade-offs was conducted for the first time. Pa-rameters such as hydraulic retention time (HRT) and organic loading rate (OLR) were optimised in the anaerobic compartment from 10 days and 6.2 g COD/L day to 9 days and 6.9 g COD/L day, respectively. Furthermore, sludge recycle ratio was optimised from 20 to 50 in the aerobic compartment. The optimisation was successful where the biogas yield increased from 0.24 to 0.29 L CH4 /g CODremoved with excellent Chemical Oxygen Demand (COD), and Biological Oxygen Demand (BOD) removal efficiencies up to 99 with 5.8 lower net expenditure. This simulation results were comparable against the pre-commercialized IAAB with 11.4 increase in methane yield after optimisation. Economic analysis had proven the optimised process to be feasible, resulting in return on investment (ROI), payback time, and internal rate of return (IRR) of 24.5, 4.1 years, and 17.9, respectively. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
date: 2021
publisher: MDPI AG
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85109360134&doi=10.3390%2fpr9071124&partnerID=40&md5=9e105ff9ff2e5318bef5aa8439def0cd
id_number: 10.3390/pr9071124
full_text_status: none
publication: Processes
volume: 9
number: 7
refereed: TRUE
issn: 22279717
citation:   Chong, J.W.R. and Chan, Y.J. and Chong, S. and Ho, Y.C. and Mohamad, M. and Tan, W.N. and Cheng, C.K. and Lim, J.W.  (2021) Simulation and optimisation of integrated anaerobic-aerobic bioreactor (IAAB) for the treatment of palm oil mill effluent.  Processes, 9 (7).   ISSN 22279717