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Speciation, Fate and Transport, and Ecological Risks of Cu, Pb, and Zn in Tailings from Huogeqi Copper Mine, Inner Mongolia, China
Chen, Liwei1; Wu, Jun2; Lu, Jian3; Xia, Chulin4; Urynowicz, Michael A.5; Huang, Zaixing5; Gao, Li6; Ma, Mingying1
2018
发表期刊JOURNAL OF CHEMISTRY
文章类型Article
摘要Tailings collected from the tailing reservoir at Huogeqi Copper Mine, located in Inner Mongolia, China, were used in a leachate study to evaluate the acid potential, neutralization potential, and possibility for producing acid mine drainage (AMD) from the site. The speciation of Cu, Pb, and Zn contained in the tailings was also determined during the leachate study to further access the potential migration abilities of these metals. The results showed that the tailings did not produce significant AMD as the pH of the leachate ranged from 7 to 9 and decreased with time. The Cu, Pb, and Zn concentrations were high, ranging from 439.1 to 4527mg/kg in the tailings and from 0.162 to 7.964 mg/L in the leachate, respectively. Concentrations of metals in the leachate and tailings were positively correlated. Over 60% of the Cu in the tailing samples existed in an oxidizable form. Most of the Pb also existed in its oxidized form, as did the silicate and Zn. Metals usually have higher mobility in their exchangeable and oxidizable forms and as such represent a higher potential risk to the environment. Results of risk assessment code also revealed that metals in tailings exerted medium to high risks to the environment.
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]HEAVY-METALS ; SEQUENTIAL EXTRACTION ; SEDIMENTS ; CONTAMINATION
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000426168200001
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6425
专题青海盐湖研究所知识仓储
盐湖地质与环境实验室
作者单位1.Qinghai Univ, Sch Chem Engn, Xining 810016, Qinghai, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Qinghai, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China
4.Qinghai Univ, Dept Geol Engn, Xining 810016, Qinghai, Peoples R China
5.Univ Wyoming, Dept Civil & Architectural Engn, Laramie, WY 82071 USA
6.Qinghai Univ, Sch Mech Engn, Xining 810016, Qinghai, Peoples R China
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GB/T 7714
Chen, Liwei,Wu, Jun,Lu, Jian,et al. Speciation, Fate and Transport, and Ecological Risks of Cu, Pb, and Zn in Tailings from Huogeqi Copper Mine, Inner Mongolia, China[J]. JOURNAL OF CHEMISTRY,2018.
APA Chen, Liwei.,Wu, Jun.,Lu, Jian.,Xia, Chulin.,Urynowicz, Michael A..,...&Ma, Mingying.(2018).Speciation, Fate and Transport, and Ecological Risks of Cu, Pb, and Zn in Tailings from Huogeqi Copper Mine, Inner Mongolia, China.JOURNAL OF CHEMISTRY.
MLA Chen, Liwei,et al."Speciation, Fate and Transport, and Ecological Risks of Cu, Pb, and Zn in Tailings from Huogeqi Copper Mine, Inner Mongolia, China".JOURNAL OF CHEMISTRY (2018).
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