石灰法处理纳米膜过滤浓缩水

Lime Process to Treat Concentrated Hard Water Produced by Nanofilm Filtration

纳米膜过滤技术可用于处理高硬度地下水,但过滤后的浓缩水硬度很大,需软化处理才能排放.利用石灰法处理硬度为 1 750mg/L的纳米膜过滤浓缩水,选择倒锥形反应罐,合理控制CaO加入量和水流量,处理后的水硬度小于 600mg/L.

Technology of nanofilm filtration can be used to treat underground hard water. While the hardness of the concentrated liquor produced by nanofilm filtration is as high as 1750 mg/L, such liquor must be softened before discharge. By using inversion cone-shaped canister, and controlling the quantity of CaO and the flow rate of the concentrated liquor, the hardness of the treated water could be lower than 600 mg/L.