Fungi characteristics of biofilms from sewage and greywater in small diameter gravity sewers

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 水污染控制实验室

	Fungi characteristics of biofilms from sewage and greywater in small diameter gravity sewers
	Li, Wenkai; Zheng, Tianlong; Ma, Yingqun; Liu, Junxin
刊名	ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
	2020-03-01
卷号	6 期号:3 页码:532-539
ISSN号	2053-1400
英文摘要	Small diameter gravity sewers (SDGSs) have been applied globally and provide a sewage recycling method whereby collected greywater can be directly reused as reclaimed irrigation water, which can be particularly useful for low-income rural areas. However, the fungi characteristics of SDGS biofilms remain unclear, especially with respect to the abundance of pathogenic fungi. To investigate the fungi characteristics of SDGS biofilms, we use rural sewage and synthetic greywater in an integrated experimental set-up containing six sewage SDGSs and six greywater SDGSs, respectively. Results indicate that Ascomycota and Hypocreales were the most predominant fungi phylum and order in the SDGS biofilms, respectively. Wastewater type caused little difference in the total number of fungi (8.5 x 10(4) colony-forming unit (CFU) cm(-2) in sewage, and 1.1 x 10(5) CFU cm(-2) in synthetic greywater), whereas a significant distinction was observed in fungi communities. Mucor and Rhodotorula were significantly abundant in the sewage SDGS biofilms whereas Exophiala was abundant in the greywater SDGS biofilms. Fungi in greywater SDGS biofilms showed a more complex network and had more keystone species than fungi in sewage SDGS biofilms based on network analysis. Animal pathogen Exophiala and plant pathogen Gibberella in the greywater SDGS biofilms were more abundant when compared with sewage SDGS biofilms. We conclude that reuse of greywater collected by SDGSs for irrigation should be further evaluated due to the relatively abundant pathogenic fungi in our SDGS biofilms. Further study combined with the present study could provide useful information for supporting decisions made by governments.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45040]
专题	生态环境研究中心_水污染控制实验室
推荐引用方式 GB/T 7714	Li, Wenkai,Zheng, Tianlong,Ma, Yingqun,et al. Fungi characteristics of biofilms from sewage and greywater in small diameter gravity sewers[J]. ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY,2020,6(3):532-539.
APA	Li, Wenkai,Zheng, Tianlong,Ma, Yingqun,&Liu, Junxin.(2020).Fungi characteristics of biofilms from sewage and greywater in small diameter gravity sewers.ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY,6(3),532-539.
MLA	Li, Wenkai,et al."Fungi characteristics of biofilms from sewage and greywater in small diameter gravity sewers".ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY 6.3(2020):532-539.