文章系统地研究了操作压力、进料流量、温度、运行时间、浓缩体积比等因素对反渗透膜处理印染废水处理效果的影响,并确定了反渗透膜的清洗周期和清洗方法.在实验确定的最佳的工艺条件下,反渗透膜对印染废水的浊度和色度的去除率均为100%,COD去除率大于76%,电导率去除率大于98%,透过液达到了再生水的水质标准.反渗透膜清洗周期为7 d,采用化学清洗和水力冲洗相结合的清洗方法可使反渗透膜的通量恢复.%The hybrid process of reverse osmosis and microelectrolysis was proposed to treat the dye effluent. The dye effluent was filtered by reverse osmosis to make the permeate,suitable for reuse, and the concentrate could come up to the discharge standard after being treated by ferric-carbon microelectrolysis. The effects of transmembrane pressure, feed flowrate, temperature, operation time, concentration ratio on the treatment efficiency were studied. The cleaning cycle and the cleaning scheme were determined. Under the optimal conditions, the removal efficiency of turbidity and coloration both were 100%, and the removal efficiency of COD and conductivity were more than 76%, 98% respectively. The membrane cleaning cycle was 7 d. The membrane flux was recovered to 100% with chemical cleaning and hydraulic rinse.
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