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

Avino Silver & Gold Mines Ltd.在不列颠哥伦比亚省西南部经营Bralorne金矿。bralorne金矿自2010年以来一直在试生产，但公司正在制定战略运营计划，以实现盈利运营。在对Bralorne金矿的尾矿水进行监测期间，已确定砷是令人关注的主要污染物，需要在矿山关闭后进行处理。湿地可以为吸收和隔离无毒形式的砷提供一个天然来源。在这里，我们提出了一种砷的各种形式的水，土壤和植物的自然湿地，接受间歇性供应的矿山影响砷污染的污水分析。我们将使用萨斯喀彻温大学加拿大光源的同步加速器设备来分析样品材料中的镁元素形态。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吸收的位置。通过这样做，我们希望更好地了解砷的化学途径的动力学，以便我们可以设计有效的生态恢复治疗方法。

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.