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Development of functionalized clay-based reactive media for salinity mitigation of potash mine wastes and for reuse as remedial agents

开发功能化粘土基反应介质，用于减轻钾矿废物的盐度并重新用作补救剂

基本信息

批准号：
487008-2015
负责人：
Chang, Wonjae
金额：
$ 3.64万
依托单位：
University of Saskatchewan
依托单位国家：
加拿大
项目类别：
Collaborative Research and Development Grants
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=618163
关键词：
Development functionalized clay based reactive

项目摘要

One-third of the world's demand for potash is being supplied by Saskatchewan and the potash mining industry is a core element driving the rapid economic development in Saskatchewan and Canada. At the same time, however, potash mining operations are generating a substantial volume of mine wastes. Strategies for the responsible management and remediation of potash mining-impacted environments have been in high demand in the industry, especially considering intensified mining activity, elevated water consumption rates, and potential environmental risks posed to groundwater, agricultural soils, and ecological receptors. Drs. Won Jae Chang (PI), Joyce McBeth (co-PI) and James Dyne (collaborator) propose novel salinity mitigation research that mainly focuses on developing engineered clay-based adsorbents for simultaneously remediating both sodium and chloride in potash brine-impacted groundwater. The developed adsorbents will be efficient, cost-effective, and versatile remedial agents, and will advance remediation engineering strategies for potash mining sites.Agrium, Mosaic and PotashCorp have recognized the significant benefits of the proposed engineered clay-based adsorbents through collaborative research and expert review process. The three major potash mining companies will support the research through the International Minerals Innovation Institute (IMII). Up-to-date knowledge, cutting-edge geoenvironmental engineering research tools, microbial and chemical analyses, and synchrotron-based microscopy analyses will be combined to develop innovative solutions for the management and remediation of potash brine-impacted sites. The research is directly related to current potash mining practices, which puts it on the frontline of sustainable development and environmental protection in Canada.

世界上三分之一的钾肥需求由萨斯喀彻温省供应，钾肥采矿业是推动萨斯喀彻温省和加拿大经济快速发展的核心因素。然而，与此同时，钾肥开采作业正在产生大量的矿山废物。对受钾盐开采影响的环境进行负责任的管理和修复的战略在行业中需求很高，特别是考虑到采矿活动的加剧、用水率的上升以及对地下水、农业土壤和生态受体构成的潜在环境风险。Won Jae Chang博士(Pi)、Joyce McBeth博士(合作者)和James Dye博士(合作者)提出了新的盐度缓解研究，主要集中在开发工程粘土基吸附剂，以同时修复受钾盐卤水影响的地下水中的钠和氯。开发的吸附剂将是高效、低成本和多功能的补救剂，并将推进钾盐矿场的修复工程战略。通过合作研究和专家评审过程，Agrium、Mosaic和PotashCorp已经认识到拟议的工程粘土基吸附剂的显著好处。三大钾矿公司将通过国际矿物创新研究所(IMII)支持这项研究。将结合最新的知识、尖端的地质环境工程研究工具、微生物和化学分析以及基于同步加速器的显微镜分析，为受钾盐卤水影响的场地的管理和修复开发创新的解决方案。这项研究与当前的钾肥开采实践直接相关，这使其站在加拿大可持续发展和环境保护的第一线。