Abstract Mining operation produces significant volumes of waste rocks (WR) characterised by high heterogeneity in their physical, mineralogical and hydrogeological properties. The purposes of this study were to assess the acid-generating potential, evaluate reprocessing feasibility of polymetallic WR using desulphurisation process (i.e., gravity separation and flotation) and study the geochemical behaviour of desulphurised materials. The fresh WR was collected in the waste dump from Langlois mine at Lebel-sur-Quevillon (Quebec, Canada). The WR sample was divided into six fractions using wet screening : D

中文翻译：

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多金属废石后处理清洁和可持续采矿的可行性

摘要 采矿作业产生大量废石 (WR)，其物理、矿物学和水文地质特性具有高度异质性。本研究的目的是评估产酸潜力，评估使用脱硫工艺（即重选和浮选）对多金属 WR 进行后处理的可行性，并研究脱硫材料的地球化学行为。新鲜的 WR 是在 Lebel-sur-Quevillon（加拿大魁北克省）的 Langlois 矿的废物堆中收集的。使用湿筛选将 WR 样品分为六个部分：D