Degradation of 3,3 ',4,4 '-tetrachlorobiphenyl (PCB77) by dielectric barrier discharge (DBD) non-thermal plasma: Degradation mechanism and toxicity evaluation
文献类型：期刊论文
| 作者 | Huang, Qing1 ; Fang, Cao
|
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2020-10-15 |
| 卷号 | 739 |
| 关键词 | Persistent organic pollutant (POP) Polychlorinated biphenyl (PCB) Non-thermal plasma (NTP) Dielectric barrier discharge (DBD) Degradation Toxicity |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2020.139926 |
| 通讯作者 | Huang, Qing(huangq@ipp.ac.cn) |
| 英文摘要 | Polychlorinated biphenyls (PCBs) area kind of persistent organic pollutants (POPs) with stable chemical properties which can be enriched in a biological body for a long time. They are often carelessly released into natural environment and thus constantly posing a potential threat to human health. However, because of lack of effective ways of degrading PCBs, researchers are still striving to explore new approaches to remove them from the environment. In this work, we employed atmospheric-pressure non-thermal dielectric barrier discharge (DBD) plasma to treat 3.3',4,4'-tetrachlorobiphenyl (PCB77) in aqueous solution and investigated the removal efficiency under different DBD conditions using different discharging gases. As a result, we showed that He-DBD had the highest removal efficiency with hydroxyl radical playing the major role in the degradation, while O-2-DBD also gave rise to relatively high efficiency with ozone making an important contribution. After 2 min of treatments by He-DBD and O-2-DBD, over 75% of PCB77 was degraded with removal rate of 23.65 mg/L and 22.19 mg/L per minute, respectively. Besides, the toxicological evaluation for the DBD treatment was also provided, confirming that the PCB77 degradation products had negligible biotoxicity.This work therefore provides a new effective approach to treatment of persistent organic pollutants (POPs) in the environment. (C) 2020 Elsevier B.V. All rights reserved. |
| WOS关键词 | POLYCHLORINATED-BIPHENYLS PCBS ; HIGH-VOLTAGE DISCHARGE ; ADVANCED OXIDATION ; CONTAMINATED SOILS ; AQUEOUS-SOLUTION ; REDUCTION ; DECHLORINATION ; REMEDIATION ; PHOTOLYSIS ; REMOVAL |
| 资助项目 | Natural Science Foundation of China[11635013] ; Natural Science Foundation of China[11775272] ; Natural Science Foundation of China[21777165] ; Anhui Provincial Key Research and Development Plans[1704a0902017] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000561797500016 |
| 出版者 | ELSEVIER |
| 资助机构 | Natural Science Foundation of China ; Anhui Provincial Key Research and Development Plans |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/70562]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Huang, Qing |
| 作者单位 | 1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Intelligent Machines, CAS Key Lab High Magnet Field & Ion Beam Phys Bio, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Grad Sch, Sci Isl Branch, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Qing,Fang, Cao. Degradation of 3,3 ',4,4 '-tetrachlorobiphenyl (PCB77) by dielectric barrier discharge (DBD) non-thermal plasma: Degradation mechanism and toxicity evaluation[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,739. |
| APA | Huang, Qing,&Fang, Cao.(2020).Degradation of 3,3 ',4,4 '-tetrachlorobiphenyl (PCB77) by dielectric barrier discharge (DBD) non-thermal plasma: Degradation mechanism and toxicity evaluation.SCIENCE OF THE TOTAL ENVIRONMENT,739. |
| MLA | Huang, Qing,et al."Degradation of 3,3 ',4,4 '-tetrachlorobiphenyl (PCB77) by dielectric barrier discharge (DBD) non-thermal plasma: Degradation mechanism and toxicity evaluation".SCIENCE OF THE TOTAL ENVIRONMENT 739(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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