| 摘要 |
<p>A sedimentation reservoir (21) is connected to a phosphating tank (11) to continuously receive the solution to be clarified to carry out sedimentation of the mud and to send to the tank a clarified solution. The solution is used in lowering the concentration of mud in the phosphating tank. A filter (F1) connected to the sedimentation reservoir (21) and to the tank to filter mud. The filter also filters the solution removed from the phosphating tank.</p> |
