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

将粘土材料整合到工程覆盖层中并改进其性能评估技术

• 批准号: RGPIN-2017-06787
• 负责人: Maqsoud, Abdelkabir
• 金额: $ 1.53万
• 依托单位: Université du Québec en Abitibi-Témiscamingue
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=636211
• 关键词: Integration; clayey; materials; engineered; covers

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.

矿产资源的开采在加拿大经济中发挥着重要作用。然而，在清除这些有价值的商品时，往往会产生大量废物。这些废物如果管理不当，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。硫化物被大气中的氧气氧化会导致大气沃茨酸化，这种现象被称为酸性矿井排水（AMD）。在这些情况下，必须在矿场采取行动，以防止AMD造成的环境影响。不同的管理选项和康复策略可用于抑制AMD的产生。尽管这些技术的发展，仍然有工作，必须执行，以提高其性能在技术上和经济上。