the effect of recycling flux on the performance and microbial community composition of a biofilm hydrolytic-aerobic recycling process treating anthraquinone reactive dyes循环通量的影响性能和微生物群落组成的生物膜hydrolytic-aerobic回收过程处理蒽醌活性染料.pdf

Molecules 2011, 16, 9838-9849; doi:10.3390/molecule OPEN ACCESS molecules ISSN 1420-3049 /journal/molecules Article The Effect of Recycling Flux on the Performance and Microbial Community Composition of a Biofilm Hydrolytic-Aerobic Recycling Process Treating Anthraquinone Reactive Dyes Yuanpeng Wang 1,2,*, Kang Zhu 1, Yanmei Zheng 1, Haitao Wang 1, Guowen Dong 1, Ning He 1 1 and Qingbiao Li 1 Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China 2 State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, China * Author to whom correspondence should be addressed; E-Mail: wypp@; Tel.: +86-592-218-3088; Fax: +86-592-218-4822. Received: 21 October 2011; in revised form: 7 November 2011 / Accepted: 18 November 2011 / Published: 25 November 2011 Abstract: Synthetic dyes are extensively used and rarely degraded. Microbial decomposition is a cost-effective alternative to chemical and physical degradation processes. In this study, the decomposition of simulated anthraquinone reactive dye (Reactive Blue 19; RB19) at a concentration of 400-mg/L in wastewater by a biofilm hydrolytic-aerobic recycling system was investigated over a range of recycling fluxes. The 16S rDNA-based fingerprint technique was also used to investigate the microbial community