Influence factors and health risk assessment of bioaerosols emitted from an industrial-scale thermophilic biofilter for off gas treatment
文献类型：期刊论文
| 作者 | Yanga, Kaixiong; Li, Lin; Xue, Song; Wang, Yanjie; Liu, Junxin; Yang, Tang |
| 刊名 | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 129页码:55-62 |
| ISSN号 | 0957-5820 |
| 关键词 | Thermophilic biofilter Flow rate Water containing rate Bioaerosols emission Risk assessment |
| 英文摘要 | Bioaerosols emissions from an industrial-scale thermophilic biofilter (TBF) for sludge drying exhaust treatment were investigated by varying the inlet gas flow rate and water containing rate (WCR) of the packing materials (polyurethane foam cubes, PUFCs). Both bacteria and water-soluble ions (WSIs) were detected in bioaerosols. When the WCR of PUFCs was 37%, with the increase of flow rate from 1500 to 3500 m(3)/h, concentrations of bacteria in bioaerosols increased from 449 +/- 27 to 643 +/- 46 CFU/m(3). Variation in flow rates had similar effects on WSIs. At a constant flow rate of 3500 m(3)/h, bacterial emissions increased from 1112 +/- 314 to 1778 +/- 157 CFU/m(3) when the WCR of PUFCs increased from 44% to 65%. Similarly, the total concentrations of WSIs emissions also increased from 19.21 to 30.57 mu g/m(3) with the rising of WCR. The bacterial populations in bioaerosols were determined via polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) technology. Source apportionment results showed that more than 80% of the bacteria in bioaerosols originated from PUFCs. At the TBF outlet, health risks were associated with gaseous compounds (e.g. SO2, H2S, and 1,2-dichlorobenzene) rather than bioaerosols. Appropriate management and control measures are required to reduce the risks of these compounds. (C) 2019 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/42655]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 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 |
| 推荐引用方式 GB/T 7714 | Yanga, Kaixiong,Li, Lin,Xue, Song,et al. Influence factors and health risk assessment of bioaerosols emitted from an industrial-scale thermophilic biofilter for off gas treatment[J]. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,2019,129:55-62. |
| APA | Yanga, Kaixiong,Li, Lin,Xue, Song,Wang, Yanjie,Liu, Junxin,&Yang, Tang.(2019).Influence factors and health risk assessment of bioaerosols emitted from an industrial-scale thermophilic biofilter for off gas treatment.PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,129,55-62. |
| MLA | Yanga, Kaixiong,et al."Influence factors and health risk assessment of bioaerosols emitted from an industrial-scale thermophilic biofilter for off gas treatment".PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 129(2019):55-62. |
入库方式： OAI收割
来源：生态环境研究中心
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