Treatment and management of mine water

矿井水处理与管理

• 批准号: CRC-2021-00373
• 负责人: Neculita, Carmen
• 金额: $ 14.57万
• 依托单位: Université du Québec en Abitibi-Témiscamingue
• 依托单位国家: 加拿大
• 项目类别: Canada Research Chairs
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=764544
• 关键词: Treatment; management; mine; water

Responsible management of water resources is nowadays a major environmental challenge worldwide. Questions relating to water management and treatment are critical in every stage of a mining project, from the initial public consultations aimed at assessing its social acceptability to the long-term management of closed sites. The proposed 7-year research program, as a continuation of the work started in the previous Canada Research Chair, Tier 2 (2011-2021) in mine water treatment, has 6 specific objectives: 1) improve the characterization and treatment of contaminants of emerging concern in mine water, with an emphasis on critical and strategic minerals (CSM) extraction; 2) improve mine water management, through controlled mixing and segregation, to reduce costs and impacts on receiving natural waters; 3) improve process performance and contaminants stability in solids from mine water treatment with residual materials, within a circular economy; 4) optimize mine water reuse and green energy recovery towards zero liquid discharge goal; 5) integrate upscaling (lab-pilot-site) effects in water treatment design and management strategies; 6) optimize water management and treatment strategies for the long-term environmental sustainability of mining in a changing climate. This original and innovative research program relies on: i) the optimal use of residual materials, available near mining sites, to reduce transportation costs and residual pollution; ii) the integration of scale effects and climatic instabilities in the design and operation criteria of treatment systems and water management strategies, to improve their robustness, increase their durability and reduce their risk of failures; iii) the use of treatment sludge and brines for pollution control and green energy production; iv) the development of methods and practices adapted to responsible mining of CSM. Considering UQAT's strategic location in the heart of a large mining region, its expertise and international reputation on this major research theme in the strategic plan, the support of industrial and government partners, the existence of state-of-the-art equipment and experienced staff, and social importance of water quality issues, this program is of critical importance and will allow the training of at least 35-40 highly qualified personnel. The findings are expected to improve the design and long-term efficiency of treatment systems for mine water and its sustainable management.

负责任的水资源管理是当今世界面临的一项重大环境挑战。与水的管理和处理有关的问题在采矿项目的每一个阶段都至关重要，从旨在评估其社会可接受性的初步公众协商到封闭场地的长期管理。拟议的7年研究计划，作为前加拿大研究主席，Tier 2开始的工作的延续（2011-2021年）在矿井水处理方面有6个具体目标：1）改善矿井水中新出现的令人关切的污染物的表征和处理，重点是关键和战略矿物（CSM）的提取; 2）通过受控的混合和分离来改善矿井水管理，以降低成本和对接收天然沃茨水的影响; 3）在循环经济中，改善工艺性能和来自具有残余材料的矿井水处理的固体中的污染物稳定性; 4）优化矿井水回用和绿色能源回收，实现液体零排放目标;（实验室-试点-现场）对水处理设计和管理战略的影响; 6）优化水资源管理和处理战略，以确保在不断变化的气候条件下采矿的长期环境可持续性。这一原创性和创新性的研究计划依赖于：i）最佳利用采矿场附近可用的残留材料，以减少运输成本和残留污染; ii）在处理系统和水管理策略的设计和操作标准中整合规模效应和气候不稳定性，以提高其鲁棒性，增加其耐用性并降低其故障风险; iii）使用处理污泥和盐水进行污染控制和绿色能源生产; iv）开发适合于负责任采矿的方法和实践。考虑到该研究所位于一个大型矿区的中心地带，具有战略性的地理位置，在战略计划的这一主要研究主题方面拥有专门知识和国际声誉，得到了工业界和政府伙伴的支持，拥有最先进的设备和经验丰富的工作人员，以及水质问题的社会重要性，该方案至关重要，将培训至少35-40名高素质人员。研究结果有望改善矿井水处理系统的设计和长期效率及其可持续管理。