纳滤膜处理高浓度废液分离规律研究

The Nanofiltration Separation Rule Study for Industrial Waste Liquid Treatment

利用管式或卷式纳滤膜处理废弃母液 ,在固定工艺条件下 ,透过液通量与浓缩时间呈一定数学关系 ;当浓缩进行到最后 ,透过液中的COD浓度会突然提高 ,该突然下降时间应为最长连续浓缩时间。抗生素截留率的变化规律基本与COD的去除率相同 ,但数值不同。

Tubular and Spiral Nanofiltration membrane can be used to treat industrial waste liquid. Under certain conditions, there is a fixed mathematic relationship between the permeate flux and concentration time. At the end of concentration, COD of permeate will increase quickly.This period should be the finishing time of concentration.The rule of antibiotic retention rate is similar with COD,but the value is different.The COD rule can be used to predict the antibiotic situation