- Dec 11, 2019-

Filtration is the wet sludge with a filter layer (porous materials such as press cloth, wire mesh) filtration, so that water (filtrate) percolate filtration layer, dehydrated sludge (filter cake) is trapped in the filter layer. The centrifugation method is based on the difference of solid and liquid specific gravity in the sludge produced by different centrifugal tendency to achieve mud separation.