Influence of microbial community diversity and function on pollutant removal in ecological wastewater treatment

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院饮用水科学与技术重点实验室

	Influence of microbial community diversity and function on pollutant removal in ecological wastewater treatment
	Bai, Yaohui; Huo, Yang; Liao, Kailingli; Qu, Jiuhui
刊名	APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
	2017-10-01
卷号	101 期号:19 页码:7293-7302
关键词	Ecological Treatment Microbial Community Metagenomics Nerium Oleander Arundo Donax
英文摘要	Traditional wastewater treatments based on activated sludge often encounter the problems of bulking and foaming, as well as malodor. To solve these problems, new treatment technologies have emerged in recent decades, including the ecological wastewater treatment process, which introduces selected local plants into the treatment system. With a focus on the underlying mechanisms of the ecological treatment process, we explored the microbial community biomass, composition, and function in the treatment system to understand the microbial growth in this system and its role in pollutant removal. Flow cytometry analysis revealed that ecological treatment significantly decreased influent bacterial quantity, with around 80% removal. 16S rRNA gene sequencing showed that the ecological treatment also altered the bacterial community structure of the wastewater, leading to a significant change in Comamonadaceae in the effluent. In the internal ecological system, because most of microbes aggregate in the plant rhizosphere and the sludge under plant roots, we selected two plant species (Nerium oleander and Arundo donax) to study the characteristics of rhizosphere and sludge microbes. Metagenomic results showed that the microbial community composition and function differed between the two species, and the microbial communities of A. donax were more sensitive to seasonal effects. Combined with their greater biomass and abundance of metabolic genes, microbes associated with N. oleander showed a greater contribution to pollutant removal. Further, the biodegradation pathways of some micropollutants, e.g., atrazine, were estimated.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39710]
专题	生态环境研究中心_中国科学院饮用水科学与技术重点实验室
推荐引用方式 GB/T 7714	Bai, Yaohui,Huo, Yang,Liao, Kailingli,et al. Influence of microbial community diversity and function on pollutant removal in ecological wastewater treatment[J]. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY,2017,101(19):7293-7302.
APA	Bai, Yaohui,Huo, Yang,Liao, Kailingli,&Qu, Jiuhui.(2017).Influence of microbial community diversity and function on pollutant removal in ecological wastewater treatment.APPLIED MICROBIOLOGY AND BIOTECHNOLOGY,101(19),7293-7302.
MLA	Bai, Yaohui,et al."Influence of microbial community diversity and function on pollutant removal in ecological wastewater treatment".APPLIED MICROBIOLOGY AND BIOTECHNOLOGY 101.19(2017):7293-7302.