Document Detail


Filamentous granular sludge bulking in a laboratory scale UASB reactor.
MedLine Citation:
PMID:  17884465     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Filamentous bulking was observed in a lab scale upflow anaerobic sludge blanket (UASB) reactor. Granules failed to settle normally and disintegrated. The characteristics of the granules in structure and microbial composition during the granulation process were investigated by means of scanning electron microscopy (SEM) and denaturing gradient gel electrophoresis (DGGE) technique. Granules with high porosity instead of compact ones were developed in the reactor and Methanosaeta concilii and Methanobacterium formicicum were identified as the predominant methanogens present in granules. The excess growth of the filamentous bacteria could be the contributing factor causing floatation and disintegration.
Authors:
Jinye Li; Baolan Hu; Ping Zheng; Mahmood Qaisar; Lingling Mei
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Publication Detail:
Type:  Journal Article     Date:  2007-09-19
Journal Detail:
Title:  Bioresource technology     Volume:  99     ISSN:  0960-8524     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-02-26     Completed Date:  2008-05-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  3431-8     Citation Subset:  IM    
Affiliation:
Department of Environmental Engineering, Zhejiang University, Hangzhou, 310029 Zhejiang, China.
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MeSH Terms
Descriptor/Qualifier:
Anaerobiosis
Archaea / genetics
Base Sequence
Bioreactors*
Electrophoresis
Particle Size
Phylogeny
Pilot Projects
RNA, Archaeal / genetics
RNA, Ribosomal, 16S / genetics
Sewage*
Time Factors
Volatilization
Chemical
Reg. No./Substance:
0/RNA, Archaeal; 0/RNA, Ribosomal, 16S; 0/Sewage

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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