Optimization of a wastewater treatment system for the mining industry

采矿业废水处理系统的优化

• 批准号: 535812-2018
• 负责人: Rancourt, David
• 金额: $ 11.66万
• 依托单位: Université de Sherbrooke
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=693915
• 关键词: Optimization; wastewater; treatment; system; mining

The project aims at optimizing a wastewater treatment system, named Mudwizard®, developed by Technosub. This technology is currently used as a pumping and dewatering solution for the mining industry, which prevents the pumping of large amount of mud to the surface. The system is composed of three main parts, the dissolver, the mixer and the settling tank, all designed on a trial and error basis. The dissolver is a sludge flocculation system containing pucks to accelerate the separation of solid particles and liquid water. The separation then continues in the mixer and dissolver resulting in the separation of about 500 gallons per minute of wastewater. A combined experimental and numerical approach is proposed here to optimize these three components for a wide range of operating conditions (temperature, pH, flowrate and type of puck). One experimental set-up will be developed at Université de Sherbrooke and the results compared to both numerical simulations and on-site measurements in LaRonde gold mine. This will lead to the optimization of both the process and the system in terms of geometry and operating conditions. The budget of this 3-year project is 240 k$ and will enable to recruit three full-time master students, one part-time research assistant and one bachelor intern. The success of this project will improve the economic potential and environmental impact of Technosub. More generally, it will reduce the environmental impact of the Canadian mining industry by more properly managing wastewater and so preventing water and soil pollution.

该项目旨在优化由技术开发的废水处理系统，名为Mudwizard®。目前，该技术用作采矿业的抽水和脱水解决方案，可防止大量的泥土泵送到地面上。该系统由三个主要部分组成，即Dissolver，混合器和设置罐，它们都是根据反复试验设计的。溶解器是一个污泥絮凝系统，该系统含有冰球，可加速固体颗粒和液态水的分离。然后，分离在混合器和溶解器中继续，导致每分钟废水分离约500加仑。这里提出了一种组合的实验和数值方法，以优化这三个组件，以适用于广泛的工作条件（温度，pH，流量和冰球类型）。与数值模拟和现场相比，Sherbrooke大学将开发一种实验设置。 Laronde Gold Mine的测量。这将在几何和操作条件方面导致过程和系统的优化。这个3年项目的预算是240 K $，将使招募三名全日制学生，一名兼职研究助理和一名单身汉实习生。该项目的成功将改善技术ub的经济潜力和环境影响。更一般地，它将通过更正确地管理废水，从而防止水和土壤污染来减少加拿大采矿业对环境的影响。