Speciation, Fate and Transport, and Ecological Risks of Cu, Pb, and Zn in Tailings from Huogeqi Copper Mine, Inner Mongolia, China
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 conta...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2018/2340542 |
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| author | Liwei Chen Jun Wu Jian Lu Chulin Xia Michael A. Urynowicz Zaixing Huang Li Gao Mingying Ma |
| author_facet | Liwei Chen Jun Wu Jian Lu Chulin Xia Michael A. Urynowicz Zaixing Huang Li Gao Mingying Ma |
| author_sort | Liwei Chen |
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| description | 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 4527 mg/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. |
| format | Article |
| id | doaj-art-74d0e59e55854e1a8bea5db64574bb0e |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
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| series | Journal of Chemistry |
| spelling | doaj-art-74d0e59e55854e1a8bea5db64574bb0e2025-02-03T05:44:05ZengWileyJournal of Chemistry2090-90632090-90712018-01-01201810.1155/2018/23405422340542Speciation, Fate and Transport, and Ecological Risks of Cu, Pb, and Zn in Tailings from Huogeqi Copper Mine, Inner Mongolia, ChinaLiwei Chen0Jun Wu1Jian Lu2Chulin Xia3Michael A. Urynowicz4Zaixing Huang5Li Gao6Mingying Ma7School of Chemical Engineering, Qinghai University, Xining, Qinghai 810016, ChinaKey Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, Qinghai 810008, ChinaKey Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, ChinaDepartment of Geological Engineering, Qinghai University, Xining, Qinghai 810016, ChinaDepartment of Civil and Architectural Engineering, University of Wyoming, Laramie, WY 82071, USADepartment of Civil and Architectural Engineering, University of Wyoming, Laramie, WY 82071, USASchool of Mechanical Engineering, Qinghai University, Xining, Qinghai 810016, ChinaSchool of Chemical Engineering, Qinghai University, Xining, Qinghai 810016, ChinaTailings 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 4527 mg/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.http://dx.doi.org/10.1155/2018/2340542 |
| spellingShingle | Liwei Chen Jun Wu Jian Lu Chulin Xia Michael A. Urynowicz Zaixing Huang Li Gao Mingying Ma Speciation, Fate and Transport, and Ecological Risks of Cu, Pb, and Zn in Tailings from Huogeqi Copper Mine, Inner Mongolia, China Journal of Chemistry |
| title | Speciation, Fate and Transport, and Ecological Risks of Cu, Pb, and Zn in Tailings from Huogeqi Copper Mine, Inner Mongolia, China |
| title_full | Speciation, Fate and Transport, and Ecological Risks of Cu, Pb, and Zn in Tailings from Huogeqi Copper Mine, Inner Mongolia, China |
| title_fullStr | Speciation, Fate and Transport, and Ecological Risks of Cu, Pb, and Zn in Tailings from Huogeqi Copper Mine, Inner Mongolia, China |
| title_full_unstemmed | Speciation, Fate and Transport, and Ecological Risks of Cu, Pb, and Zn in Tailings from Huogeqi Copper Mine, Inner Mongolia, China |
| title_short | Speciation, Fate and Transport, and Ecological Risks of Cu, Pb, and Zn in Tailings from Huogeqi Copper Mine, Inner Mongolia, China |
| title_sort | speciation fate and transport and ecological risks of cu pb and zn in tailings from huogeqi copper mine inner mongolia china |
| url | http://dx.doi.org/10.1155/2018/2340542 |
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