Belt filter

wateroilfor wastewater

This belt filter is also called belt drum filter. The filter medium which is in contact with the contaminated suspension is arranged semicircular. This leads to a water column as well as problems with the discharge of the filter cake. Special filter nonwovens - calendered on one side, fleecy on the other side - can solve this problem. The requirements for the nonwovens are generally high with respect to the usable dimensions as well as the needed tensile strenghts. That and the intensive maintenance due to agglutinating sensors or leakages in the fringe area lead to higher operating costs in addition to high acquisition costs. On the other hand there is the compact and space saving design which is possible because of a very good utilization of the filter fleece due to the hydrostatic pressure.