高铁酸钾的研制与应用实践

Preparation of potassium ferrate(Ⅵ) and its practical application

以次氯酸盐氧化法制备新型水处理剂高铁酸钾，对其去除ＣＯＤｃｒ和悬浮物的性能进行了研究。对城市污水处理厂初沉池出水以２０ｍｇ／Ｌ进行处理，可去除９０％以上的ＣＯＤｃｒ；对二沉池出水以５ｍｇ／Ｌ进行处理，无需过滤，沉后浊度小于２。

Potassium ferrate(Ⅵ),a new type water treatment agent,was prepared by hypochlorite oxidation and was applied to remove COD cr and suspended solids in wastewater.More than 90% COD cr can be removed with 20 ml/L potassium ferrate(Ⅵ) in treating outlet water from pre settling tanks of urban wastewater treatment plant and turbidity less than 2 can be obtained without filtration with 5 mg/L potassium ferrate(Ⅵ) in treating outlet water from final settling tanks.