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Humidity cell tests for the prediction of acid rock drainage / D.J. Sapsford in Minerals engineering, Vol. 22 N° 1 (Janvier 2009) 

Public ISBD [article]  in Minerals engineering > Vol. 22 N° 1 (Janvier 2009) . - pp. 25–36 Titre : Humidity cell tests for the prediction of acid rock drainage Type de document : texte imprimé Auteurs : D.J. Sapsford, Auteur ; R. J. Bowell, Auteur ; M. Dey, Auteur Année de publication : 2009 Article en page(s) : pp. 25–36 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Acid  rock  drainage  Sulfide  ores  Pollution  Environmental  Oxidation Index. décimale : 622 Industrie minière Résumé : This paper presents a study of various geochemical humidity-style weathering tests that were carried out on waste mine rock from Avoca, County Wicklow, Ireland. The aim of this paper is to present data that demonstrate some of the geochemical controls on weathering rates together with release rates from laboratory testwork. These data are used to determine the applicability of various interpretations of humidity cell data for prediction of acid rock drainage. Furthermore, within this context the paper offers opinion on common questions related to the use of such tests: should humidity cells be aerated? How long should the test be run for? Is pre-treatment of the samples required? Is inoculation of the samples with iron and sulfur oxidising microbes required? And should these tests really be considered to be accelerated weathering tests? DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508000770 [article] Humidity cell tests for the prediction of acid rock drainage [texte imprimé] / D.J. Sapsford, Auteur ; R. J. Bowell, Auteur ; M. Dey, Auteur . - 2009 . - pp. 25–36. Génie Minier Langues : Anglais (eng) in Minerals engineering > Vol. 22 N° 1 (Janvier 2009) . - pp. 25–36 Mots-clés : Acid  rock  drainage  Sulfide  ores  Pollution  Environmental  Oxidation Index. décimale : 622 Industrie minière Résumé : This paper presents a study of various geochemical humidity-style weathering tests that were carried out on waste mine rock from Avoca, County Wicklow, Ireland. The aim of this paper is to present data that demonstrate some of the geochemical controls on weathering rates together with release rates from laboratory testwork. These data are used to determine the applicability of various interpretations of humidity cell data for prediction of acid rock drainage. Furthermore, within this context the paper offers opinion on common questions related to the use of such tests: should humidity cells be aerated? How long should the test be run for? Is pre-treatment of the samples required? Is inoculation of the samples with iron and sulfur oxidising microbes required? And should these tests really be considered to be accelerated weathering tests? DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508000770