Polychlorinated naphthalene (PCN) emissions and characteristics during different secondary copper smelting stages | |
Jiang, Xiaoxu1; Li, Qiushuang2; Yang, Lili; Yang, Yuanping; Zhen, Minghui | |
刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY |
2019-11-30 | |
卷号 | 184页码:- |
关键词 | Secondary copper production Polychlorinated naphthalene Emission characterization Smelting stages |
ISSN号 | 0147-6513 |
英文摘要 | The amounts and characteristics of polychlorinated naphthalenes (PCNs) emitted by a secondary copper smelter were investigated. Differences in the amounts and characteristics of PCNs emitted during different smelting stages were investigated, and the main stage during which PCNs were emitted was identified. PCN concentrations in stack gases emitted during secondary copper smelting were 477.0-762.5 ng/m(3) (4.4-8.3 pg toxic equivalents/m(3)). The contributions of the different stages to total PCN emissions decreased in the order feeding-fusion stage (65% of total PCN emissions) > oxidation stage (27%) > deoxidation stage (8%). The main contributor to PCN emissions during secondary copper smelting was the feeding-fusion stage. PCN concentrations and profiles in stack gas, fly ash, and deposit ash collected during different smelting stages were determined. PCNs in stack gases were mainly less-chlorinated homologs, and fly ash and deposit ash were dominated by highly-chlorinated homologs. These results will help improve strategies for decreasing and eliminating PCN emissions during secondary copper production. |
内容类型 | 期刊论文 |
源URL | [http://ir.rcees.ac.cn/handle/311016/42576] |
专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, POB 2871, Beijing 100085, Peoples R China 2.China Natl Environm Monitoring Ctr, Beijing 100012, Peoples R China 3.Minist Ecol & Environm Peoples Republ China, Foreign Environm Cooperat Ctr, Beijing 100035, Peoples R China |
推荐引用方式 GB/T 7714 | Jiang, Xiaoxu,Li, Qiushuang,Yang, Lili,et al. Polychlorinated naphthalene (PCN) emissions and characteristics during different secondary copper smelting stages[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2019,184:-. |
APA | Jiang, Xiaoxu,Li, Qiushuang,Yang, Lili,Yang, Yuanping,&Zhen, Minghui.(2019).Polychlorinated naphthalene (PCN) emissions and characteristics during different secondary copper smelting stages.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,184,-. |
MLA | Jiang, Xiaoxu,et al."Polychlorinated naphthalene (PCN) emissions and characteristics during different secondary copper smelting stages".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 184(2019):-. |
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