The device which was used for treating the waste water containing fluoride was reformed as follows : adding a water seal pot replacing the vertical submerged pump by horizontal centrifugal pump which was made of high content tantiron and was linked with water seal pot .

对含氟废水处理装置进行了改造：增加水封罐，选用与水封罐相联的高 硅铁卧式离心泵代替 原立式液下泵。