Evolution of the microbial community in a full-scale printing and dyeing wastewater treatment system
- 作者：Qingxiang Yang ; yangqx66@163.com ; Jia Wang ; Hongtao Wang tao666tao666@163.com ; Xuanyu Chen cxy549983744@126.com ; Siwei Ren renwei000000@163.com ; Xueling Li lixueling870710@126.com ; Ying Xu jingjing86321@126.com ; Hao Zhang kele1564@126.com ; Xuemei Li xm633@163.com
- 关键词：Archaea ; Bacteria ; Denaturing&ndash ; gradient gel electrophoresis (DGGE) ; Fungi microbial community ; Printing and dyeing wastewater
- 刊名：Bioresource Technology
- 出版年：2012
- 期刊代码：11_09608524
- 类别：ce
- 出版时间：August, 2012
- 卷：117
- 期：Complete
- 页码：155-163
- 文件大小：955 K
摘要
In this study, the dynamics of bacterial, fungal and archaeal populations in two-stage biological processes of a full-scale printing and dyeing wastewater treatment system were traced using cultivation and molecular biological techniques. The enumeration results indicated that bacteria were the dominant population in the system, in which the ratio of fungi to bacteria decreased in all the treatment units, while the ratio of archaea to bacteria increased significantly, especially in samples from the second-stage biological treatment process. PCR-denaturing gradient gel electrophoresis (DGGE) analysis showed that the microbial diversity increased with system running and 64.6%of bacterial, 57.6%of fungal and 38.2%of archaeal populations remained in the system from the seed sludge during system start-up. In spite of variation in the microbial community and composition of the influents, some bacterial species such as Thauera sp. and Xanthomonadaceae were present simultaneously in all the collected samples.