Utilize este identificador para referenciar este registo: http://hdl.handle.net/1822/42357

TítuloA case in support of implementing innovative bio-processes in the metal mining industry
Autor(es)Sánchez-Andrea, Irene
Stams, Alfons Johannes Maria
Weijma, Jan
Contreras, Paula Gonzalez
Dijkman, Henk
Rozendal, Rene A.
Johnson, D. Barrie
Palavras-chaveMining industry
Acidophiles
Sulfate-reducing bacteria
Selective metal precipitation
Data2016
EditoraOxford University Press
RevistaFEMS Microbiology Letters
CitaçãoSánchez-Andrea, Irene; Stams, A. J. M.; Weijma, Jan; Contreras, Paula Gonzalez; Dijkman, Henk; Rozendal, Rene A.; Johnson, D. Barrie, A case in support of implementing innovative bio-processes in the metal mining industry. FEMS Microbiology Letters, 36(11), fnw106, 2016
Resumo(s)The metal mining industry faces many large challenges in future years, among which is the increasing need to process low-grade ores as accessible higher grade ores become depleted. This is against a backdrop of increasing global demands for base and precious metals, and rare earth elements. Typically about 99% of solid material hauled to, and ground at, the land surface currently ends up as waste (rock dumps and mineral tailings). Exposure of these to air and water frequently leads to the formation of acidic, metal-contaminated run-off waters, referred to as acid mine drainage, which constitutes a severe threat to the environment. Formation of acid drainage is a natural phenomenon involving various species of lithotrophic (literally rock-eating) bacteria and archaea, which oxidise reduced forms of iron and/or sulfur. However, other microorganisms that reduce inorganic sulfur compounds can essentially reverse this process. These microorganisms can be applied on industrial scale to precipitate metals from industrial mineral leachates and acid mine drainage streams, resulting in a net improvement in metal recovery, while minimising the amounts of leachable metals to the tailings storage dams. Here, we advocate that more extensive exploitation of microorganisms in metal mining operations could be an important way to green up the industry, reducing environmental risks and improving the efficiency and the economy of metal recovery.
Tipoarticle
URIhttp://hdl.handle.net/1822/42357
DOI10.1093/femsle/fnw106
ISSN0378-1097
Versão da editorahttp://femsle.oxfordjournals.org/
Arbitragem científicayes
AcessoopenAccess
Aparece nas coleções:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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