The use of wetlands to sequester and treat mine-influenced effluent containing arsenic

Avino Silver&Gold Mines Ltd.运营着不列颠哥伦比亚省西南部的Bralorne金矿。Bralorne型金矿自二零一零年开始试生产，但公司正在制订战略营运计划，以期实现盈利。在对Bralorne金矿的尾矿水进行监测期间，已确定砷是关闭矿山后需要处理的主要污染物。湿地可能为无毒形式的砷的吸收和封存提供自然来源。在这里，我们建议对自然湿地的水、土壤和植物中不同形态的砷进行分析，该湿地间歇性地供应受矿山影响的砷污染污水。我们将使用萨斯喀彻温省大学加拿大光源的同步加速器设备来分析我们样品材料中的同种异构体。我们的目标是测试同步加速器分析矿山样品中砷的能力，并确定湿地样品中砷的吸收位置。通过这样做，我们希望更好地了解砷的化学途径的动力学，以便为生态修复设计有效的处理方法。

Avino Silver & Gold Mines Ltd. operates the Bralorne Gold Mine in southwestern British Columbia. BralorneGold Mine has been operating under trial production since 2010, but the Company is developing a strategicoperating plan to achieve a profitable operation. During monitoring of mine tailings water at Bralorne GoldMine it has been determined that arsenic is the major contaminant of concern that will require treatmentfollowing mine closure. Wetlands may provide a natural source for the uptake and sequestration of arsenic innon-toxic forms. Here we propose an analysis of arsenic in its various forms within the water, soils, and plantsof a natural wetland that receives an intermittent supply of mine-influenced arsenic-tainted effluent. We willuse the synchrotron facility at the University of Saskatchewan's Canadian Light Source to analyze and maparsenic speciation in our sample materials. Our goal is to test the capability of the synchrotron to analyzearsenic in mine samples and to identify the location of arsenic uptake in our wetland samples. By doing so wehope to better understand the dynamics of the chemical pathway of arsenic so that we can design efficienttreatment methods for ecological restoration.