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A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities
Published on: December 25, 2015
[Microbial diversity analysis in rotating drum biofilter for nitric oxide denitrifying removal]
Jun Chen1, Zhi-ye Wang, Yi-feng Jiang
1College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China. bec@zjut.edu.cn
Huan Jing Ke Xue= Huanjing Kexue
|July 22, 2008
Summary
Microbial communities in rotating drum biofilters (RDB) were analyzed for nitric oxide denitrification. Denitrification was linked to specific microbial groups, including gamma-Proteobacterium and beta-Proteobacterium.
Area of Science:
- Microbiology
- Environmental Science
- Molecular Biology
Context:
- Rotating drum biofilters (RDBs) are used for treating nitrogen oxides.
- Understanding microbial communities is crucial for optimizing denitrification processes.
Purpose:
- To analyze microbial communities in RDBs under anaerobic conditions for nitric oxide (NO) denitrification.
- To identify key microbial populations involved in NO removal.
Summary:
- PCR-DGGE and 16S rRNA gene sequencing were used to characterize microbial communities in RDB biofilms.
- Microbial diversity initially increased then decreased with copper addition and enhanced NO removal efficiency.
- Major microbial groups identified include Cytopahga-Flexibacteria-Bacteroides, beta-Proteobacterium, gamma-Proteobacterium, and Clostridium sp.
- Denitrification activity was associated with specific bacterial genera affiliated with gamma-Proteobacterium and beta-Proteobacterium.
Impact:
- Provides insights into microbial ecology of NO denitrification in RDBs.
- Identifies key bacterial groups potentially responsible for NO removal.
- Informs strategies for enhancing denitrification efficiency in biofilters.
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