Bacterial population and chemicals in bioaerosols from indoor environment: Sludge dewatering houses in nine municipal wastewater treatment plants

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	Bacterial population and chemicals in bioaerosols from indoor environment: Sludge dewatering houses in nine municipal wastewater treatment plants
	Liu, Junxin; Han, Yunping; Wang, Yanjie; Li, Lin; Xu, Guangsu; Yang, Kaixiong
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2018-03-15
卷号	618 页码:469-478
关键词	Municipal wastewater treatment plants Sludge dewatering houses Indoor bioaerosols Bacterial population Chemicals
ISSN号	0048-9697
文献子类	Article
英文摘要	Municipal wastewater treatment plants (MWTPs) are regarded as sources of airborne microorganisms. Sludge dewatering house (SDH) is one of the most serious indoor bioaerosol pollution treatment sectors in MWTPs. In this study, properties of bioaerosols from SDHs of nine MWTPs were investigated in China. Results suggested that bioaerosols were generated mainly from the mixed liquor and will be promoted by the mechanical motion of belts of dewatering devices. They will accumulate in the SDHs due to the treatment devices placed inside. Levels of airborne bacteria and chemicals showed regional variations. In Hefei and Yixing, the emissions of total suspended particles (TSP) and airborne bacteria were higher than those in Beijing and Guangzhou. Results of bacterial population showed that bacterial species in bioaerosols from SDHs also presented significant regional disparity; these regional disparities were closely related with the source of bioaerosols in SDHs. Among these identified bacterial species, some common potential pathogens were detected in all SDHs, such as Aeromonas caviae, Flavobacterium sp., and Staphylococcus lentus. Relative humidity (RH) and temperature were the major parameters on bioaerosols to survive. As shown in this study, SDHs in wastewater treatment plants should be provided considerable attention for being an emission source of indoor bioaerosols. (c) 2017 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41110]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Liu, Junxin,Han, Yunping,Wang, Yanjie,et al. Bacterial population and chemicals in bioaerosols from indoor environment: Sludge dewatering houses in nine municipal wastewater treatment plants[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,618:469-478.
APA	Liu, Junxin,Han, Yunping,Wang, Yanjie,Li, Lin,Xu, Guangsu,&Yang, Kaixiong.(2018).Bacterial population and chemicals in bioaerosols from indoor environment: Sludge dewatering houses in nine municipal wastewater treatment plants.SCIENCE OF THE TOTAL ENVIRONMENT,618,469-478.
MLA	Liu, Junxin,et al."Bacterial population and chemicals in bioaerosols from indoor environment: Sludge dewatering houses in nine municipal wastewater treatment plants".SCIENCE OF THE TOTAL ENVIRONMENT 618(2018):469-478.