alexa Biodegradation of Acetaldehyde by Microorganisms in Bio
ISSN: 2155-6199

Journal of Bioremediation & Biodegradation
Open Access

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Research Article

Biodegradation of Acetaldehyde by Microorganisms in Biological Activated Carbon Filters

Chun-lei Z1,2*, Liang L2, Chun-bo H3 and Dong-sheng W1
1Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
2Water Quality Monitoring Center of Beijing Waterworks Group, Beijing 100192, China
3China University of Geosciences, Beijing 100083, China
Corresponding Author : Maulin P Shah
Applied and Environmental Microbiology Lab
Enviro Technology Limited (CETP)
Ankleshwar-393002, Gujarat, India
Fax: +91-2646-250707
E-mail: [email protected]
Received December 10, 2012; Accepted March 13, 2013; Published March 15, 2013
Citation: Shah MP, Patel KA, Nair SS, Darji AM (2013) Optimization of Environmental Parameters on Microbial Degradation of Reactive Black Dye. J Bioremed Biodeg 4:183. doi: 10.4172/2155-6199.1000184
Copyright: © 2013 Shah MP, et al. This is an open-a ccess article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Biodegradation of acetaldehyde and characteristic analysis of microorganisms in Biological Activated Carbon (BAC) filter were investigated. The results revealed that microorganisms in BAC bed were mainly responsible for the removal of acetaldehyde. Biodegradation efficiency for acetaldehyde was more than 95%. The phylogenetic analysis for the nearly complete sequences of 16S rDNA demonstrated a decrease of the bacterial groups and gene sequences from 13 to 6 and 81 to 33, respectively; whilst the heteotrophic plate count bacteria increased from 1.18×107 CFU/g to 1.28×108 CFU/g. Betaproteobacteria was the predominant bacterial group, 78% of total bacteria while only 11% of those in the sample before acetaldehyde added. A lot of sequences affiliated to Betaproteobacteria, such as SY-10, SY-41, SY-1, SY-75, SY-14, SY-107 which accounted for more than 50% of total clone sequences in the clone library, had high similarity to those originated from similar environment in previous literatures and could assimilate simple organic substances containing one carbon atom. It proved they played a decisive role in the biodegradation process of acetaldehyde and were acetaldehyde degraders.

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