物理化学预处理与膜分离技术的应用

Utilization of the Physico-Chemical Treatment and Membrane Separating Technique of Waste Water and Its Prospect

将物理化学预处理与膜分离技术深度处理结合应用于工业废水处理，可使其中的Ｃｒ６＋＜０．５ｍｇ／ｌ，Ｚｎ２＋＜２０ｍｇ／ｌ，ｐＨ６～９。用膜分离技术处理造纸废水可回收其中的木质素和糖份，回收率均为６０％左右。

By applying the physico-chemical treatment and membrane separating technique to the industrial waste water treatment,the Cr 6+ in the waste water could be less than 0.5mg/L,the Zn 2+ could be less than 20mg/L and the PH could be from 6 to 9.The wood cellulose and sugar in the waste water from pulp and paper mills could be recovered and the recovery rate is about 60 percent.