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Microbial diversity of anammox bacteria enriched from different types of seed sludge in an anaerobic continuous-feeding cultivation reactor

Paper ID Volume ID Publish Year Pages File Format Full-Text
22261 43264 2009 6 PDF Available
Title
Microbial diversity of anammox bacteria enriched from different types of seed sludge in an anaerobic continuous-feeding cultivation reactor
Abstract

Enrichment of anammox bacteria from three types of seed sludge, sewage, digester, and nitrification sludges, was conducted using a nonwoven fabric carrier for immobilizing the anammox bacteria, and the microbial diversity of the enriched anammox culture was investigated. About four months later, simultaneous removals of ammonium and nitrite, and production of a small amount of nitrate, which is unique to the anammox reaction, were observed in all 3 sludge reactors. Results of 16S rRNA gene analysis indicated that anammox bacteria were cultivated and diversified in each sludge type. Moreover, the microbial diversity of anammox bacteria was higher in the enriched culture from sewage sludge compared to the other two types of seed sludge. Bacillus sp. coexisted in the anammox culture cultivated from sewage sludge. These results suggest that differences in the anammox community in the enriched culture were caused by differences in the type of seed sludge.

Keywords
Anaerobic ammonium oxidation (anammox); Microbial diversity; Nonwoven fabric carrier; Nitrogen removal; Phylogenetic analysis; Reproducible enrichment
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Microbial diversity of anammox bacteria enriched from different types of seed sludge in an anaerobic continuous-feeding cultivation reactor
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 107, Issue 3, March 2009, Pages 281–286
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us