Chemical changes in groundwater due to flooding of an iron mine in a non-acid producing environment
Résumé
Mine drainage is one of the mining industry’s undesirable effects on the environment. Mining operations disturb the chemical equilibrium of the surrounding rocks by suddenly exposing them to oxidising conditions. The chemical reactions that take place generate effluents that are usually acidic and contain SO4
2-, Fe, Mn, etc. After the mines are closed and abandoned, the suspension of dewatering and drainage leads to progressive flooding of the workings. The waters drain these effluents to overflow points, springs and rivers. It is therefore necessary to predict any flow modifications and changes in water quality in order to install new management schemes for this resource.
Domaines
Géologie appliquéeOrigine | Fichiers produits par l'(les) auteur(s) |
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