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

被引：83

作者：

Han, Yunping ^{[1
,2
]}

Wang, Yanjie ^{[1
,2
]}

Li, Lin ^{[1
,2
]}

Xu, Guangsu ^{[1
,2
]}

Liu, Junxin ^{[1
]}

Yang, Kaixiong ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China

[2] Univ Chinese Acad Sci, Natl Engn Lab VOCs Pollut Control Mat & Technol, Beijing 101408, Peoples R China

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2018年 / 618卷

基金：

中国国家自然科学基金;

关键词：

Municipal wastewater treatment plants; Sludge dewatering houses; Indoor bioaerosols; Bacterial population; Chemicals; AIRBORNE BACTERIA; COMPLETE NITRIFICATION; MICROORGANISMS; IDENTIFICATION; INFECTION; COMMUNITY; VIRULENCE; STRAINS; AEROSOL; PATIENT;

D O I：

10.1016/j.scitotenv.2017.11.071

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

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.

引用

页码：469 / 478

页数：10

共 43 条

[1] PHYLOGENETIC IDENTIFICATION AND IN-SITU DETECTION OF INDIVIDUAL MICROBIAL-CELLS WITHOUT CULTIVATION [J].