The preparation of the ultrafiltration membrane with ion sieve for removing fluorine
离子筛与醋酸纤维素混合超滤膜的制备及降氟性能

In the process of preparing ultrafiltration membrane,the introduction of hydrated lanthanum oxide La2O3· n H2O makes the ultrafiltration membrane possess two functions-separating large molecules and decreasing the concentration of fluorine in the water.The mechanism of removing fluorine of the ultrafiltration membrane was discussed.