title: Evolution of the microbial community in a full-scale printing and dyeing wastewater treatment system.
abstract: 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.
authors.affiliation: College of Life Sciences, Henan Normal University, Xinxiang 453007, China. yangqx66@163.com
authors.forename: Qingxiang
authors.initials: Q
authors.lastname: Yang
authors.forename: Jia
authors.initials: J
authors.lastname: Wang
authors.forename: Hongtao
authors.initials: H
authors.lastname: Wang
authors.forename: Xuanyu
authors.initials: X
authors.lastname: Chen
authors.forename: Siwei
authors.initials: S
authors.lastname: Ren
authors.forename: Xueling
authors.initials: X
authors.lastname: Li
authors.forename: Ying
authors.initials: Y
authors.lastname: Xu
authors.forename: Hao
authors.initials: H
authors.lastname: Zhang
authors.forename: Xuemei
authors.initials: X
authors.lastname: Li
mesh_terms: D000693:Anaerobiosis; D001419:Bacteria / Q000235:genetics / Q000254:growth & development* / Q000378:metabolism; D001673:Biodegradation, Environmental; D057919:Biological Oxygen Demand Analysis; D004396:Coloring Agents / Q000737:chemistry*; D058645:Denaturing Gradient Gel Electrophoresis; D006868:Hydrolysis; D008969:Molecular Sequence Data; D010802:Phylogeny; D011327:Printing; D013783:Textile Industry; D014865:Waste Disposal, Fluid; D018508:Water Purification / Q000379:methods* / Q000592:standards
chemical_list: D004396:Coloring Agents