Document Detail

Removal performance and changes in the microbial communities of SBRs under aerobic and anoxic conditions with trace tetracycline pressure.
MedLine Citation:
PMID:  24766595     Owner:  NLM     Status:  In-Data-Review    
The reactor performance and microbial community composition of sequencing batch reactor (SBR) under aerobic and anoxic conditions were investigated in this study. The experimental results showed high chemical oxygen demand (COD) removal efficiency. The tetracycline (TC) removal efficiencies were not obviously affected by aerobic and anoxic conditions, and were 64-97 and 60-87%, respectively. Aerobic condition was observed to be more suitable for decreasing tetracycline-resistant bacteria (TRB) than anoxic condition in synthetic and real wastewater. Denaturing gradient gel electrophoresis (DGGE) and clone library analysis revealed that Chlorobaculumthiosulfatiphilum was the dominant species in the tested SBR systems. TC significantly influenced the relative numbers of TRB- and TC-resistant genes, and the microbial community diversity changed with the addition of 250 μg L(-1) of TC. The genes of tetA and tetC, tetM and tetS, tetA and tetM, tetS and tetA showed significant correlation with each other (P < 0.05).
Manhong Huang; Bin Xiao; Wei Zhang; Zhen Huang; Liang Chen; Donghui Chen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering     Volume:  49     ISSN:  1532-4117     ISO Abbreviation:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Publication Date:  2014 Jul 
Date Detail:
Created Date:  2014-04-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9812551     Medline TA:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Country:  England    
Other Details:
Languages:  eng     Pagination:  940-7     Citation Subset:  IM    
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