Integration and modification of anionic exchange process for mine water treatment in cold climates

寒冷气候下矿井水处理阴离子交换工艺的集成与改造

• 批准号: 548770-2019
• 负责人: Bouafif, Hassine
• 金额: $ 5.46万
• 依托单位: Cégep de l'Abitibi-Témiscamingue
• 依托单位国家: 加拿大
• 项目类别: Applied Research and Development Grants - Level 2
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=701048
• 关键词: Integration; modification; anionic; exchange; process

The Centre Technologique des Résidus Industriels (CTRI) affiliated to the College of Abitibi Témiscamingue collaborates with Aldex Chemicals inc. to modify and integrate innovative anionic exchange resin with a potential to treat problematic anion contamination (e.g. sulfate) in mine effluents in cold temperature. This proposed project is seen as a continuity for the Engage Grants funded by NSERC (536694-18). The results of the engage project obviously showed that anion exchange resin was a viable treatment option for mine effluent for the removal of sulfate and the performance of resin at lower temperature and pH was proved. However, the regeneration process and the management of regeneration solution were the most challenging issues in this project. Modification of regeneration procedure as well as the pre-treatment of competitive anions such as thiocyanate, nitrates, etc. are proposed. In this context, this ARD level II project aims to reply to raised challenges discussed above. This proposed project is divided into three distinct parts: Part 1 will involve running experiments to identify the problematic anions in order to optimize the regeneration process and the management of the regeneration solution, Part 2 covers the modification, and installation of a prototype filtration and column unit at lab scale to resemble the industrial process. In this phase biological anions pre-treatment process could be joint with column. The results of the second phase will be used in part 3 for economical assessment of fully operational anion exchange process. This project builds a foundation for long-term collaboration with Aldex and secure their position as the provider of new technologies in the mine marketplace. The project is critical to the validation and subsequent commercialization of Aldex technology for treating mine effluent in Quebec and Canada and will, at the same time, offers to CTRI an opportunity to enhance expertise in this research field. CTRI has the expertise and material resources to successfully accomplish this project.

Abitibi Témiscamingue学院附属工业技术中心（CTRI）与Aldex化学公司合作。改进和整合创新的阴离子交换树脂，使其具有在低温下处理矿井废水中有问题的阴离子污染（例如硫酸盐）的潜力。该拟议项目被视为NSERC（536694-18）资助的参与赠款的延续。该项目的结果表明，阴离子交换树脂是一种可行的矿山废水处理方法，并证明了树脂在较低温度和pH下的性能。然而，再生过程和再生溶液的管理是该项目中最具挑战性的问题。提出了再生工艺的改进以及硫氰酸根、硝酸根等竞争性阴离子的预处理方法。在此背景下，该ARD二级项目旨在应对上文讨论的挑战。该拟议项目分为三个不同的部分：第1部分将涉及运行实验，以确定有问题的阴离子，以优化再生工艺和再生溶液的管理，第2部分包括修改和安装实验室规模的原型过滤和柱装置，以模拟工业过程。在此阶段，生物阴离子预处理工艺可与柱联用。第二阶段的结果将在第3部分中用于全面运行的阴离子交换工艺的经济评估。该项目为与Aldex的长期合作奠定了基础，并确保了他们作为矿山市场新技术提供商的地位。该项目对于Aldex技术在魁北克和加拿大处理矿井废水的验证和随后的商业化至关重要，同时也将为CTRI提供一个机会，以提高该研究领域的专业知识。CTRI拥有成功完成该项目的专业知识和物质资源。