期刊
BIORESOURCE TECHNOLOGY
卷 117, 期 -, 页码 155-163出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.04.059
关键词
Archaea; Bacteria; Denaturing-gradient gel electrophoresis (DGGE); Fungi microbial community; Printing and dyeing wastewater
资金
- National Natural Science Foundation of China [NSFC 21077032]
- Henan Province Outstanding Youth Fund [104100510006]
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. (C) 2012 Elsevier Ltd. All rights reserved.
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