Integration of clayey materials in the engineered covers and improvement of their performance evaluation techniques

矿产资源的开采在加拿大经济中起着重要作用。然而，在清除这些有价值的商品时，往往会产生大量的废物。如果管理不当，这些废物有可能对环境产生不利影响。当废物中含有硫化铁矿物时，需要特别注意。大气氧对硫化物的氧化往往导致大气水体的酸化；这种现象被称为酸性矿井水（AMD）。在这些情况下，必须在矿区采取行动，防止AMD对环境造成的影响。不同的管理选择和康复策略可用于抑制AMD的产生。尽管这些技术得到了发展，但在技术和经济上仍需改进其性能。

The extraction of mineral resources plays an important role in the Canadian economy. However, while removing these valuable commodities, large volumes of waste are often generated. These wastes have the potential to adversely impact the environment if not properly managed. Special attention is required when the wastes contain iron sulfide minerals. The oxidation of sulfides by atmospheric oxygen tends to lead to the acidification of meteoric waters; this phenomenon is known as acid mine drainage (AMD). In these situations, actions must be taken at the mine site to prevent environmental impacts caused by AMD. Different management options and rehabilitation strategies are available to inhibit AMD production. Despite the development of these techniques, there is still work that must be performed to improve their performance both technically and economically.