The water coming from the process is sent to the silo by a vertical centrifugal pump. A dosing pump injects a solution of flocculants into the delivery pipe. Inside the silo, the mud is trapped by polyelectrolytes. Clean water overflows from the silo’s top and is collected into a proper collecting well and then sent to the working line by a pump. A pneumatic valve discharge the mud to a mud mixing tank. The mud is taken by a filter press feeding pump and sent to the filter press for dehydration. The filter press seperates water coming from the mud and sends it again in the cycle, and stores the dry mud into a container to be collected for disposal.