这项工作的目的是确定压载砂混凝是否是一种可行的去除饮用水中砷的方法，以响应即将出台的法规。制定了jar试验方案，并在广泛的水域进行了试验，以比较微沙压载混凝和其他混凝处理工艺在除砷方面的相对有效性。微砂工艺的二次影响，如残余浊度、铁、膜过滤器运行长度和总有机碳（TOC）去除也被视为该评估的一部分。在除砷方面，微絮凝和压载混凝为许多模拟地下水试验条件提供了有希望的结果，其中80%以上的砷调节成本将产生。当使用微滤和压载混凝作为微滤的预处理时，通常没有观察到协同效益。 此外，还对聚合物的添加进行了检查，发现聚合物的添加对微压载混凝过程的性能至关重要。此外，人们还发现，新微粒的快速混合会释放出细颗粒，增加水的浊度。然而，在最初释放后，很少有额外的罚款被分离，这在实践中预计不会成为问题。包括7个参考文献、表格、图表。

This work was designed to determine if sand ballasted coagulation is a viable means of removing arsenic from drinking water in response to the forthcoming regulation. A jar test protocol was developed and tested on a wide range of waters to compare the relative effectiveness of microsand ballasted coagulation and other coagulation based treatment processes in arsenic removal. Secondary impacts of the microsand process such as residual turbidity, iron, membrane filter run length and total organic carbon (TOC) removal were also considered as part of this evaluation. In terms of arsenic removal, microsand ballasted coagulation provided promising results for many of the simulated groundwater test conditions, in which more than 80% of the arsenic regulation costs will be incurred. No synergistic benefits were typically observed when using microsand ballasted coagulation as a pretreatment to microfiltration. The addition of polymer was also examined and found to be critically important to the performance of the microsand ballasted coagulation process. Furthermore, it was discovered that rapid mixing of new microsand released fines that added to the turbidity of the water. However, after the initial release, very few additional fines were detached and this is not expected to be a problem in practice. Includes 7 references, table, figures.