Assessment of Chemical and Biological Treatment Proceeses for the Reduction of Total Dissolved Solids in Tailing Ponds from Gold Mining Operations

减少金矿开采尾矿池中溶解固体总量的化学和生物处理工艺的评估

• 批准号: 561232-2020
• 负责人: Goodwin, Brett
• 金额: $ 1.82万
• 依托单位: Sir Sandford Fleming College of Applied Arts and Technology
• 依托单位国家: 加拿大
• 项目类别: Applied Research and Development Grants - Level 1
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=724018
• 关键词: Assessment; Chemical; Biological; Treatment; Proceeses

Barrick Gold Corporation (Barrick) owns and operates a number of gold mines and processing plants that rely on both cyanide and thiosulphate leaching processes. Thiosulphate leaching is a process known to produce high levels of total dissolved solids (TDS), with high concentrations of them found in tailings ponds. In collaboration with Fleming College's Centre for Advancement of Water and Wastewater Technologies (CAWT), chemical and biological treatment processes will be assessed over a 6-month duration using small scale benchtop experiments for their ability to reduce TDS in tailing pond waters. Since implementing thiosulphate leaching processes over 6 years ago, Barrick's tailing ponds have continued to increase in volume and in TDS concentration. To manage the water balance across the sites, having a method to reduce TDS is imperative. The results of this applied research are expected to provide Barrick with a solution they can scale up and implement in their mining processes, allowing them to reduce contaminants and reuse treated water in their process operations.

巴里克黄金公司(Barrick Gold Corporation)拥有并运营着许多金矿和加工厂，这些金矿和加工厂都依赖氰化物和硫代硫酸盐浸出过程。硫代硫酸盐浸出是一种已知的产生高水平总溶解固体(TDS)的过程，尾矿库中发现了高浓度的TDS。与弗莱明学院水和废水技术促进中心(CAWT)合作，将使用小型台式实验对化学和生物处理过程进行为期6个月的评估，以确定其减少尾矿池水中TDS的能力。自6年前实施硫代硫酸盐浸出工艺以来，巴里克的尾矿库的容量和TDS浓度一直在不断增加。为了管理这些地点的水平衡，有一种方法来减少TDS是当务之急。这项应用研究的结果有望为巴里克提供一个解决方案，他们可以扩大规模并在其采矿过程中实施，使他们能够减少污染物，并在其过程操作中重复使用处理过的水。