Fast start-up and stable performance coupled to sulfate reduction in the nitrobenzene bio-reduction system and its microbial community
详细信息    查看全文
文摘
Three laboratory-scale sequence batch reactors were set up in this study. It was found that a successfully established sulfate-reducing system ?operating at COD/ ratio of 5.0 ?could speed up the start-up process, leading to a high performance. It took about 100 and 60 days, respectively, for a non-sulfate-reducing system and a sulfate-reducing control system to achieve stable and high removal of NB. However, it maintained a complete NB removal in sulfate-reducing system throughout the study. Rapid and stable NB reduction was coupled to the on-going sulfate reducing process. Denaturing gradient gel electrophoresis profile demonstrated that the predominant bacterial groups in the non-sulfate-reducing system and the sulfate-reducing control system were affiliated to Deltaproteobacterium and Acinetobacter, while in the sulfate-reducing system were sulfate-reducing and sulfur-oxidizing bacteria.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700