运用预处理-反渗透耦合工艺深度处理印染废水，进行了预处理方式的探索，考察了反渗透装置的处理能力，研究了进水压力和温度对反渗透装置运行的影响及反渗透膜的清洗方式。实验结果表明，首先采用石英砂+活性炭进行预处理，然后采用预处理-反渗透耦合工艺进行深度处理，可以有效处理印染废水，对浊度和色度的去除率达到100%，对COD的去除率达到91%，脱盐率在98%左右；在0.8~1.2 MPa的压力范围内，可以通过增加进水压力的方式来提高膜的产水量及装置的脱盐率；在15~40℃温度范围内，进水温度越高，膜的产水量越大；膜污染后，通过盐酸清洗，在进水压力为0.5 MPa时，产水量可恢复至新膜的62%。

A pretreatment-reverse osmosis (RO) membrane coupling process is utilized to treat deeply the dyeing wastewater, and pretreatment modes are explored. The processing capability of RO device is observed. Influences of the pressure and temperature of influent on the running effect of RO device and the cleaning modes for RO membrane are studied. Experimental results show that dyeing wastewater can be efficiently treated if it is firstly pretreated by quartz sand + activated carbon, and then treated deeply by pretreatment-RO coupling process. The removal rates of both turbidity and chroma can reach 100%, the removal rate of COD can reach 91%, and the desalination rate achieves around 98%. In the pressure range of 0.8-1.2 MPa, both water production rate of the membrane and desalination rate can be enhanced by increasing inlet water pressure. In the range of 15-40℃, the higher the inlet water temperature, the greater the water production of the membrane. If a fouled membrane is cleaned by hydrochloric acid, its water production can recover to 62% that of a new membrane at an inlet water pressure of 0.5 MPa.

吉生军(1992-),男,硕士,助教,研究方向为食品及环境领域色谱、质谱分析,937949098@qq.com