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| Content Provider | Springer Nature Link |
|---|---|
| Author | Navarro, Andrés |
| Copyright Year | 2008 |
| Abstract | The speciation of mercury—including most phase minerals, secondary phases, gaseous and aqueous species—is very important for evaluating the environmental impact and mobilization of this contaminant. Mining activities produce mercury mine waste, which includes several types of material (mainly mine waste and calcines) with varying mercury content and speciation depending on the ore deposit and processing technology. The main phase minerals are cinnabar, metacinnabar, metallic Hg$^{0}$, corderoite, livingstonite, calomel and schuetteite. The aqueous mobilization of mercury is controlled by complex formation, pH-Eh conditions, the primary phase mineral of mercury, and organic-matter and iron oxyhydroxide content. The possibility of colloidal transport of mercury from mine waste is influenced by the atmospheric emission of metallic Hg$^{0}$ and the leaching of waste by episodic high-intensity precipitations. In these climatic conditions, mercury can be mobilized to pore water, surface water or groundwater by the dissolution of metallic Hg$^{0}$ and cinnabar in acidic conditions, and by the colloidal transport. The presence of Hg-soluble phases (chlorides and oxychlorides) may enhance the mobilization of mercury. In the semi-arid conditions of the Valle del Azogue (SE Spain) the atmospheric emissions of the Hg$^{0}$ present in calcines and mine waste may be significant and the dissolution of Hg$^{0}$ and metal-sulfate salts during episodic runoff events may explain the mobilization of Hg, Fe, Pb, Zn and other heavy metals. |
| Starting Page | 287 |
| Ending Page | 306 |
| Page Count | 20 |
| File Format | |
| ISSN | 15691705 |
| Journal | Reviews in Environmental Science and Biotechnology |
| Volume Number | 7 |
| Issue Number | 4 |
| e-ISSN | 15729826 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2008-08-13 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Mercury species Cinnabar Mine waste Solubility Mobilization Atmospheric Protection/Air Quality Control/Air Pollution Microbiology Environmental Engineering/Biotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Waste Management and Disposal Pollution Environmental Engineering Applied Microbiology and Biotechnology |
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