对混凝或铁锰氧化过程中的砷去除进行了检查，以帮助希望提高砷去除率的公用事业公司。讨论了砷去除的基本机理，提出了优化策略，并提出了一些见解，以指导未来的研究。具体来说，通过混凝去除As（III）主要由混凝剂剂量控制，且相对不受溶液pH值的影响，而As（V）则相反。当根据凝固过程中形成的铁或氢氧化铝固体摩尔数进行比较时，铁和铝混凝剂在pH< 7下去除As（V）的效果明显相同。 5.然而，如果可溶性金属残留物存在问题，如果pH值大于7.5，或者如果原水含有As（III），则铁基混凝剂是有利的。Fe-Mn氧化过程中砷的去除受去除的铁[Fe（OH）3生成量]控制，与去除的锰（MnOOh生成量）相对独立。包括63个参考文献、表格和图表。

Arsenic removal during coagulation or Fe-Mn oxidation is examined to aid utilities that desire to improve arsenic removal. Fundamental mechanisms of arsenic removal are discussed, optimization strategies are forwarded, and some insights are provided to guide future research. Specifically, As(III) removals by coagulation are primarily controlled by coagulant dose and relatively unaffected by solution pH, whereas the converse is true for As(V). When compared on the basis of moles iron or aluminum hydroxide solid formed during coagulation, iron and aluminum coagulants are of demonstrably equal effectiveness in removing As(V) at pH < 7.5. However, iron based coagulants are advantageous if soluble metal residuals are problematic, if pH is > 7.5, or if raw water contains As(III). Arsenic removal during Fe-Mn oxidation is controlled by the quantity of iron removed [Fe(OH)3 formed] and is relatively independent of the quantity of manganese removed (MnOOh formed). Includes 63 references, tables, figures.