Morphologial, physiological and phylogenetic characterization and function verification of an anaerobic strain SN22-2 with simultaneous capabilities of denitrification and sulfate reduction
1. Introduction In an anaerobic baffled reactor (ABR) process operated in our lab for the inhibition of SRB with the dosage of nitrate, the presence of bacteria with simultaneous capabilities of denitrification and sulfate reduction was proposed. In the present study, a special medium for the isolation of strains with simultaneous denitrifying and sulfate reducing capablities was designed. A anaerobic strain with simultaneous denitrifying and sulfate-reducing capablities, named as SN22-2, was isolated. Morphological observation, physiological tests, fatty acids analysis, phylogenetic analysis of 16S rDNA, cloning and sequencing of Dsr and nirS genes and detection of enzyme activities were conducted on SN22-2 for the function verification of its simultaneous denitrifying and sulfate reducing capablities. The characterization of the present isolate had important ecological implications in treating organic wastewater containing high concentraion sulfate and nitrogen generating from light chemical engineering industries, food processing and pharmaceutical factories.
Li Wei Chun-Ying Li Ji-ming Hao
State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology,Harbin State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology,Harbin Institute of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China
国际会议
北京
英文
291-292
2011-11-24（万方平台首次上网日期，不代表论文的发表时间）