Laboratory Evaluation of the Use of Alkaline Phosphate Wastes for the Control of Acidic Mine Drainage

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dc.contributor.author Hakkou, R
dc.contributor.author Benzaazoua, M
dc.contributor.author Bussière, B
dc.date.accessioned 2012-07-11T19:52:55Z
dc.date.available 2012-07-11T19:52:55Z
dc.date.copyright 2009
dc.date.issued 2009-07
dc.identifier.citation Hakkou, R., Benzaazoua, M., & Bussière, B. (2009). Laboratory Evaluation of the Use of Alkaline Phosphate Wastes for the Control of Acidic Mine Drainage. Mine Water and the Environment, 28 (3): 206-218. doi:10.1007/s10230-009-0081-9 en
dc.identifier.issn 1616-1068
dc.identifier.uri http://hdl.handle.net/10625/49745
dc.description.abstract Pyrrhotite tailings at the abandoned Kettara mine site in Morocco are producing acid mine drainage (AMD). We investigated the use of alkaline phosphate waste (APW) rock from a nearby operating open-pit phosphate mine to control the AMD. The neutralizing potential of the APW, using the Paktunc method, was estimated between 500 and 680 kg CaCO3/t. In laboratory column tests, the addition of 15 wt% APW to the coarse Kettara tailings produced leachates with significantly lower acidities and metal concentrations than unamended controls. The high calcium concentration in the flushed solutions indicates that calcite was responsible for the neutralization. Dolomite dissolution seems to be negligible and fluorapatite was stable under the testing conditions. It was also observed that when the treated solution comes in contact with unweathered Kettara coarse tailings, the pH becomes acidic, although the metal concentrations remain low. en
dc.format Text en
dc.format.extent p. 206-218 : ill. en
dc.language.iso en
dc.subject ACID MINE DRAINAGE en
dc.subject COLUMN LEACHING TEST en
dc.subject KETTARA en
dc.subject MINE WASTE en
dc.subject MOROCCO en
dc.subject NEUTRALIZATION en
dc.subject PHOSPHATES en
dc.subject SOIL CHEMISTRY en
dc.title Laboratory Evaluation of the Use of Alkaline Phosphate Wastes for the Control of Acidic Mine Drainage en
dc.type Abstract en
idrc.project.number 104519
idrc.project.componentnumber 104519005
idrc.project.title International Research Chairs Initiative (IRCI) en
idrc.copyright.holder Springer-Verlag
idrc.dspace.access IDRC Only en
idrc.rims.adhocgroup IDRC SUPPORTED en
dc.relation.journal Mine Water and the Environment
idrc.noaccess Due to copyright restrictions the full text of this research output is not available in the IDRC Digital Library or by request from the IDRC Library. / Compte tenu des restrictions relatives au droit d'auteur, le texte intégral de cet extrant de recherche n'est pas accessible dans la Bibliothèque numérique du CRDI, et il n'est pas possible d'en faire la demande à la Bibliothéque du CRDI. en


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