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Cadmium isotopic fractionation in lead-zinc smelting process and signatures in fluvial sediments

文献类型：期刊论文

作者Zhong, Qiaohui2,5; Yin, Meiling2; Zhang, Qiong3; Beiyuan, Jingzi4; Liu, Juan2,3; Yang, Xiao1; Wang, Jin2; Wang, Lulu2; Jiang, Yanjun2; Xiao, Tangfu2
刊名JOURNAL OF HAZARDOUS MATERIALS
出版日期2021-06-05
卷号411页码:9
关键词Cd pollution Sediment Cd isotopes Source tracer Isotopic fractionation
ISSN号0304-3894
DOI10.1016/j.jhazmat.2020.125015
通讯作者Liu, Juan(liujuan858585@163.com) ; Wang, Jin(wangjin@gzhu.edu.cn)
英文摘要Cadmium (Cd) is a toxic heavy metal pollutant. Various industrial activities, especially metal smelting, are the main sources of Cd pollution. Cd isotopes have exhibited the ability to be excellent source tracers and can be used to assess the pollution contributions from different sources. Herein, in a typical lead-zinc smelter, Shaoguan, China, significant Cd isotopic fractionation was found during the high temperature smelting process and followed a Rayleigh distillation model. The heavier Cd isotopes were concentrated in the slag, while the lighter Cd isotopes were concentrated in the dust. In the downstream sediment profile of the smelter, sediments have extremely high Cd concentrations that far exceed the Chinese background sediment, indicating severe pollution levels. The epsilon Cd-114/110 of the sediment core, ranged from 0.62 +/- 0.5-1.73 +/- 0.5, are found between slag epsilon Cd-114/110 = 10.42) and dust (epsilon Cd-114/110 = - 5.68). The binary mixture model suggests that 88-93% of the Cd in sediment profile was derived from the slag, and 7-12% from the deposition of dust. The findings demonstrate the great potential to apply Cd isotopes as a new geochemical tool to distinguish anthropogenic sources and quantify the contribution from various sources in the environment.
资助项目National Key Research & Development Program of China[2017YFD0800302] ; National Natural Science Foundation of China[41873015] ; National Natural Science Foundation of China[41773011] ; Guangdong Provincial Natural Science Foundation ; Guangzhou University ; Scientific Research Projects in Colleges and Universities of Guangzhou Education Bureau, Guangzhou, China[201831803]
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000638081600004
出版者ELSEVIER
资助机构National Key Research & Development Program of China ; National Natural Science Foundation of China ; Guangdong Provincial Natural Science Foundation ; Guangzhou University ; Scientific Research Projects in Colleges and Universities of Guangzhou Education Bureau, Guangzhou, China
源URL[http://ir.igsnrr.ac.cn/handle/311030/161776]  
专题中国科学院地理科学与资源研究所
通讯作者Liu, Juan; Wang, Jin
作者单位1.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Guangzhou Univ, Sch Environm Sci & Engn, Key Lab Water Qual & Conservat Pearl River Delta, Minist Educ, Guangzhou 510006, Peoples R China
3.Univ Oxford, Dept Earth Sci, Oxford, England
4.Foshan Univ, Sch Environm & Chem Engn, Foshan, Guangdong, Peoples R China
5.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510405, Peoples R China
推荐引用方式
GB/T 7714		 Zhong, Qiaohui,Yin, Meiling,Zhang, Qiong,et al. Cadmium isotopic fractionation in lead-zinc smelting process and signatures in fluvial sediments[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,411:9.
APA Zhong, Qiaohui.,Yin, Meiling.,Zhang, Qiong.,Beiyuan, Jingzi.,Liu, Juan.,...&Zhang, Zhaofeng.(2021).Cadmium isotopic fractionation in lead-zinc smelting process and signatures in fluvial sediments.JOURNAL OF HAZARDOUS MATERIALS,411,9.
MLA Zhong, Qiaohui,et al."Cadmium isotopic fractionation in lead-zinc smelting process and signatures in fluvial sediments".JOURNAL OF HAZARDOUS MATERIALS 411(2021):9.

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来源：地理科学与资源研究所

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