Microbial Communities and Their Performances in Anaerobic Hybrid Sludge Bed-Fixed Film Reactor for Treatment of Palm Oil Mill Effluent under Various Organic Pollutant Concentrations
Joint Authors
Chaiprasert, Pawinee
Meesap, Kanlayanee
Techkarnjanaruk, Somkiet
Boonapatcharoen, Nimaradee
Source
Journal of Biomedicine and Biotechnology
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-08-14
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The anaerobic hybrid reactor consisting of sludge and packed zones was operated with organic pollutant loading rates from 6.2 to 8.2 g COD/L day, composed mainly of suspended solids (SS) and oil and grease (O&G) concentrations between 5.2 to 10.2 and 0.9 to 1.9 g/L, respectively.
The overall process performance in terms of chemical oxygen demands (COD), SS, and O&G removals was 73, 63, and 56%, respectively.
When the organic pollutant concentrations were increased, the resultant methane potentials were higher, and the methane yield increased to 0.30 L CH4/g CODremoved.
It was observed these effects on the microbial population and activity in the sludge and packed zones.
The eubacterial population and activity in the sludge zone increased to 6.4 × 109 copies rDNA/g VSS and 1.65 g COD/g VSS day, respectively, whereas those in the packed zone were lower.
The predominant hydrolytic and fermentative bacteria were Pseudomonas, Clostridium, and Bacteroidetes.
In addition, the archaeal population and activity in the packed zone were increased from to 9.1 × 107 copies rDNA/g VSS and 0.34 g COD-CH4/g VSS day, respectively, whereas those in the sludge zone were not much changed.
The most represented species of methanogens were the acetoclastic Methanosaeta, the hydrogenotrophic Methanobacterium sp., and the hydrogenotrophic Methanomicrobiaceae.
American Psychological Association (APA)
Meesap, Kanlayanee& Boonapatcharoen, Nimaradee& Techkarnjanaruk, Somkiet& Chaiprasert, Pawinee. 2012. Microbial Communities and Their Performances in Anaerobic Hybrid Sludge Bed-Fixed Film Reactor for Treatment of Palm Oil Mill Effluent under Various Organic Pollutant Concentrations. Journal of Biomedicine and Biotechnology،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-506667
Modern Language Association (MLA)
Meesap, Kanlayanee…[et al.]. Microbial Communities and Their Performances in Anaerobic Hybrid Sludge Bed-Fixed Film Reactor for Treatment of Palm Oil Mill Effluent under Various Organic Pollutant Concentrations. Journal of Biomedicine and Biotechnology No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-506667
American Medical Association (AMA)
Meesap, Kanlayanee& Boonapatcharoen, Nimaradee& Techkarnjanaruk, Somkiet& Chaiprasert, Pawinee. Microbial Communities and Their Performances in Anaerobic Hybrid Sludge Bed-Fixed Film Reactor for Treatment of Palm Oil Mill Effluent under Various Organic Pollutant Concentrations. Journal of Biomedicine and Biotechnology. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-506667
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-506667