RCEES OpenIR  > 环境水质学国家重点实验室
Characteristics of submicron aerosols produced during aeration in wastewater treatment
Han, Yunping; Yang, Tang; Chen, Tianzeng; Li, Lin; Liu, Junxin
2019-12-15
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume696Pages:-
AbstractSubmicron aerosols (SAs) emitted during wastewater treatment may harm the human circulation system, respiratory cells, and deep lungs. Despite this threat, SAs remain poorly understood. In this study, a laboratory simulation aerosol generator was manufactured, and the particle number size distributions, aerosol liquid water content (ALWC), and chemical and microbial composition of SAs from aeration were analyzed. Under stable aeration conditions, the unimodal SA size distribution ranged from 68 to 350 nm. The ALWC of peak size (170 nm) was 11-21 mu g/m(3). Na was the dominant major element in SAs with the concentration of 5.61 mu g/m(3). Total organic carbon accounted for 97% of the total carbon in the SAs. Arcobacter, Methanobrevibacter, and Fusarium were the dominant SA bacteria, archaea, and fungi, respectively, and a number of viruses were also detected. Thirty-two antibiotic resistant genes, and virulence factors of which 23% were offensive virulence factors, were detected in the SAs. The results predicted that 2% of the genes in SAs were directly related to human health. Thus, SAs may pose disproportionately high risks to human health. (C) 2019 Elsevier B.V. All rights reserved.
Department环境水质学国家重点实验室
KeywordSubmicron aerosols Size distribution Aerosol liquid water content Chemical composition Antibiotic resistance genes Offensive virulence factors
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/42628
Collection环境水质学国家重点实验室
Affiliation1.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
3.Univ Chinese Acad Sci, Beijing 101408, Peoples R China
Recommended Citation
GB/T 7714
Han, Yunping,Yang, Tang,Chen, Tianzeng,et al. Characteristics of submicron aerosols produced during aeration in wastewater treatment[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,696:-.
APA Han, Yunping,Yang, Tang,Chen, Tianzeng,Li, Lin,&Liu, Junxin.(2019).Characteristics of submicron aerosols produced during aeration in wastewater treatment.SCIENCE OF THE TOTAL ENVIRONMENT,696,-.
MLA Han, Yunping,et al."Characteristics of submicron aerosols produced during aeration in wastewater treatment".SCIENCE OF THE TOTAL ENVIRONMENT 696(2019):-.
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