Techniques to correct and prevent acid mine drainage: A review
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional de Colombia
2014
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| _version_ | 1876452058417070080 |
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| author | Santiago Pozo-Antonio |
| author_facet | Santiago Pozo-Antonio |
| contents | Techniques to correct and prevent acid mine drainage: A review Santiago Pozo-Antonio Iván Puente-Luna Susana Lagüela-López María Veiga-Ríos Ingeniería mining pyrite oxidation pollution prevention Acid mine drainage (AMD) from mining wastes is one of the current environmental problems in the field of mining pollution that requires most action measures. This term describes the drainage generated by natural oxidation of sulfide minerals when they are exposed to the combined action of water and atmospheric oxygen. AMD is characterized by acidic effluents with a high content of sulfate and heavy metal ions in solution, which can contaminate both groundwater and surface water. Minerals responsible for AMD generation are iron sulfides (pyrite, FeS2, and to a lesser extent pyrrhotite, Fe1-XS), which are stable and insoluble while not in contact with water and atmospheric oxygen. However, as a result of mining activities, both sulfides are exposed to oxidizing ambient conditions. In order to prevent AMD formation, a great number of extensive research studies have been devoted to the mechanisms of oxidation and its prevention. In this work, we present an explanation and theoretical valuation of the pyrite oxidation process and a compendium on the measures most frequently employed for its prevention and correction. 2014 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49631663009 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.186 Vol.81 |
| format | Artículo científico |
| id | redalyc_49631663009 |
| institution | Redalyc |
| language | en |
| publishDate | 2014 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Techniques to correct and prevent acid mine drainage: A review Santiago Pozo-Antonio Ingeniería mining pyrite oxidation pollution prevention Techniques to correct and prevent acid mine drainage: A review Santiago Pozo-Antonio Iván Puente-Luna Susana Lagüela-López María Veiga-Ríos Ingeniería mining pyrite oxidation pollution prevention Acid mine drainage (AMD) from mining wastes is one of the current environmental problems in the field of mining pollution that requires most action measures. This term describes the drainage generated by natural oxidation of sulfide minerals when they are exposed to the combined action of water and atmospheric oxygen. AMD is characterized by acidic effluents with a high content of sulfate and heavy metal ions in solution, which can contaminate both groundwater and surface water. Minerals responsible for AMD generation are iron sulfides (pyrite, FeS2, and to a lesser extent pyrrhotite, Fe1-XS), which are stable and insoluble while not in contact with water and atmospheric oxygen. However, as a result of mining activities, both sulfides are exposed to oxidizing ambient conditions. In order to prevent AMD formation, a great number of extensive research studies have been devoted to the mechanisms of oxidation and its prevention. In this work, we present an explanation and theoretical valuation of the pyrite oxidation process and a compendium on the measures most frequently employed for its prevention and correction. 2014 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49631663009 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.186 Vol.81 |
| title | Techniques to correct and prevent acid mine drainage: A review |
| topic | Ingeniería mining pyrite oxidation pollution prevention |
| url | https://www.redalyc.org/articulo.oa?id=49631663009 |