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Study on Performance and Characteristic of Microorganisms in a Waste-To-Energy System

Performance and characterization of microorganisms in a laboratory-scale anaerobic baffled reactor (ABR) was studied. The ABR was fed continuously at organic loading rate (OLR) of 15.2 g COD/l.d with a substrate containing pre-tested combination of kitchen waste and activated sludge. The HRT (hydra...

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Main Authors: Malakahmad, Amirhossein, Ahmad Basri, Noor Ezlin, Md Zain, Shahrom
Format: Conference or Workshop Item
Published: 2013
Subjects:
TD Environmental technology. Sanitary engineering
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utp.edu.my/8646/1/AMR.626.625.pdf
http://icamet.unimap.edu.my/attachments/article/48/International%20Conference%20on%20Advanced%20Material%20Engineering%20(ICAMET%20Guide%20Book)-15%20Nov%202012.pdf
http://eprints.utp.edu.my/8646/
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spelling my.utp.eprints.86462017-01-19T08:21:11Z Study on Performance and Characteristic of Microorganisms in a Waste-To-Energy System Malakahmad, Amirhossein Ahmad Basri, Noor Ezlin Md Zain, Shahrom TD Environmental technology. Sanitary engineering TA Engineering (General). Civil engineering (General) Performance and characterization of microorganisms in a laboratory-scale anaerobic baffled reactor (ABR) was studied. The ABR was fed continuously at organic loading rate (OLR) of 15.2 g COD/l.d with a substrate containing pre-tested combination of kitchen waste and activated sludge. The HRT (hydraulic retention time), C/N carbon/nitrogen) and F/M (food/microorganisms) ratios were maintained at 3 d, 31.4 and 0.35 gCOD/gVSS.d, respectively. The amounts of fat, protein, cellulose, hemi-cellulose and lignin which are significant polymers for anaerobic digestion start-up were found to be in appropriate ranges. Results show reduction of pH in front compartments and its boost in successive compartments. This indicates proper placement of acidogens and methanogens in the ABR. Also, significant growth in height of ABR granule bed was observed in the system based on formation and retention of granules. Microorganism characterization reveals large population of Methanosarcina in front part of the reactor although toward the end the amount for Methanosaeta increased. While Methanobacterium, Methanosprilium, Methanococcus and Methanobrevibacter were observed in the ABR, higher percentage of Methanosarcina and Methanotrix indicates production of methane from acetate conversion. 2013 Conference or Workshop Item PeerReviewed application/pdf http://eprints.utp.edu.my/8646/1/AMR.626.625.pdf http://icamet.unimap.edu.my/attachments/article/48/International%20Conference%20on%20Advanced%20Material%20Engineering%20(ICAMET%20Guide%20Book)-15%20Nov%202012.pdf Malakahmad, Amirhossein and Ahmad Basri, Noor Ezlin and Md Zain, Shahrom (2013) Study on Performance and Characteristic of Microorganisms in a Waste-To-Energy System. In: International Conference on Advanced Material Engineering & Technology (ICAMET 2012), 28-30 November 2012, Penang, Malaysia. http://eprints.utp.edu.my/8646/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic TD Environmental technology. Sanitary engineering
TA Engineering (General). Civil engineering (General)
spellingShingle TD Environmental technology. Sanitary engineering
TA Engineering (General). Civil engineering (General)
Malakahmad, Amirhossein
Ahmad Basri, Noor Ezlin
Md Zain, Shahrom
Study on Performance and Characteristic of Microorganisms in a Waste-To-Energy System
description Performance and characterization of microorganisms in a laboratory-scale anaerobic baffled reactor (ABR) was studied. The ABR was fed continuously at organic loading rate (OLR) of 15.2 g COD/l.d with a substrate containing pre-tested combination of kitchen waste and activated sludge. The HRT (hydraulic retention time), C/N carbon/nitrogen) and F/M (food/microorganisms) ratios were maintained at 3 d, 31.4 and 0.35 gCOD/gVSS.d, respectively. The amounts of fat, protein, cellulose, hemi-cellulose and lignin which are significant polymers for anaerobic digestion start-up were found to be in appropriate ranges. Results show reduction of pH in front compartments and its boost in successive compartments. This indicates proper placement of acidogens and methanogens in the ABR. Also, significant growth in height of ABR granule bed was observed in the system based on formation and retention of granules. Microorganism characterization reveals large population of Methanosarcina in front part of the reactor although toward the end the amount for Methanosaeta increased. While Methanobacterium, Methanosprilium, Methanococcus and Methanobrevibacter were observed in the ABR, higher percentage of Methanosarcina and Methanotrix indicates production of methane from acetate conversion.
format Conference or Workshop Item
author Malakahmad, Amirhossein
Ahmad Basri, Noor Ezlin
Md Zain, Shahrom
author_facet Malakahmad, Amirhossein
Ahmad Basri, Noor Ezlin
Md Zain, Shahrom
author_sort Malakahmad, Amirhossein
title Study on Performance and Characteristic of Microorganisms in a Waste-To-Energy System
title_short Study on Performance and Characteristic of Microorganisms in a Waste-To-Energy System
title_full Study on Performance and Characteristic of Microorganisms in a Waste-To-Energy System
title_fullStr Study on Performance and Characteristic of Microorganisms in a Waste-To-Energy System
title_full_unstemmed Study on Performance and Characteristic of Microorganisms in a Waste-To-Energy System
title_sort study on performance and characteristic of microorganisms in a waste-to-energy system
publishDate 2013
url http://eprints.utp.edu.my/8646/1/AMR.626.625.pdf
http://icamet.unimap.edu.my/attachments/article/48/International%20Conference%20on%20Advanced%20Material%20Engineering%20(ICAMET%20Guide%20Book)-15%20Nov%202012.pdf
http://eprints.utp.edu.my/8646/
_version_ 1738655670270427136
score 13.211869

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