eprintid: 537
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/05/37
datestamp: 2023-11-09 15:48:40
lastmod: 2023-11-09 15:48:40
status_changed: 2023-11-09 15:22:41
type: article
metadata_visibility: show
creators_name: Malakahmad, A.
creators_name: Zain, S.M.
creators_name: Ahmad Basri, N.E.
creators_name: Mohamed Kutty, S.R.
creators_name: Isa, M.H.
title: Identification of anaerobic microorganisms for converting kitchen waste to biogas
ispublished: pub
keywords: Alternative methods; Anaerobic baffled reactor; Anaerobic biodegradation; Anaerobic digestion process; Anaerobic microorganisms; Biogas production; Energy source; Kitchen waste; Methane gas; Organic wastes; Working volume, Anaerobic digestion; Biogas; Kitchens; Methane; Microbiology; Sewage sludge, Bacteria
note: cited By 2
abstract: Anaerobic digestion process is one of the alternative methods to convert organic waste into methane gas which is a fuel and energy source. Activities of various kinds of microorganisms are the main factor for anaerobic digestion which produces methane gas. Therefore, in this study a modified Anaerobic Baffled Reactor (ABR) with working volume of 50 liters was designed to identify the microorganisms through biogas production. The mixture of 75 kitchen waste and 25 sewage sludge was used as substrate. Observations on microorganisms in the ABR showed that there exists a small amount of protozoa (5) and fungi (2) in the system, but almost 93 of the microorganism population consists of bacteria. It is definitely clear that bacteria are responsible for anaerobic biodegradation of kitchen waste. Results show that in the acidification zone of the ABR (front compartments of reactor) fast growing bacteria capable of growth at high substrate levels and reduced pH was dominant. A shift to slower growing scavenging bacteria that grow better at higher pH was occurring towards the end of the reactor. Due to the ability of activity in acetate environment the percentages of Methanococcus, Methanosarcina and Methanotrix were higher than other kinds of methane former in the system.
date: 2009
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84871132224&partnerID=40&md5=7011f93353ad08394b2b24dd7206559c
full_text_status: none
publication: World Academy of Science, Engineering and Technology
volume: 36
pagerange: 884-887
refereed: TRUE
issn: 2010376X
citation:   Malakahmad, A. and Zain, S.M. and Ahmad Basri, N.E. and Mohamed Kutty, S.R. and Isa, M.H.  (2009) Identification of anaerobic microorganisms for converting kitchen waste to biogas.  World Academy of Science, Engineering and Technology, 36.  pp. 884-887.  ISSN 2010376X