NDLI: Évaluation de l'effet de la pente sur le comportement hydrogéologique d'un recouvrement alternatif de type stockage-relargage constitué de rejets calcaires phosphatés en climat aride

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Évaluation de l'effet de la pente sur le comportement hydrogéologique d'un recouvrement alternatif de type stockage-relargage constitué de rejets calcaires phosphatés en climat aride

Content Provider	Semantic Scholar
Author	Knidiri, Jihane
Copyright Year	2015
Abstract	RESUME Dans les climats arides et semi-arides, le taux d’evaporation est eleve et les precipitations sont faibles. Dans ces conditions, le drainage minier acide (DMA), genere a partir de l'oxydation de mineraux sulfures contenus dans les rejets miniers lorsque ceux-ci sont exposes a l'air et a l'eau, peut etre controle en reduisant l'infiltration d'eau. Parmi les techniques disponibles pour ce faire, l’utilisation des systemes de recouvrements alternatifs type SR, connus sous l’appellation anglaise «store-and-release», est probablement la meilleure approche autant d’un point de vue technique qu’economique. Ces recouvrements sont concus avec des materiaux ayant des proprietes hydrogeologiques specifiques leur permettant de stocker l’eau des precipitations en saisons humides et de la retourner a l’atmosphere via le processus physique d’evaporation (ou biophysique d’evapotranspiration) en saisons seches----------ABSTRACT Acid mine drainage (AMD) is one of the major liability encountered worldwide for the mining sector. This phenomenon result from the oxidation of sulfide minerals contained in mine wastes when exposed to air and water. In arid and semiarid climates, AMD can be controlled by reducing water infiltration. In fact, among the available techniques, the use of alternative cover systems store-and-release (SR) is probably the best approach considering technical and economic parameters. These covers are designed with materials having specific hydrogeological properties allowing them to store water from rainfall in wet seasons until it can be subsequently removed by evaporation (or evapotranspiration) in dry seasons.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://publications.polymtl.ca/2055/1/2015_%20Jihaneknidiri.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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