Dewatering with electrically augmented vacuum filter.

摘要

A perm-selective membrane is used in an electrokinetic cell of an electrically augmented vacuum filter (EAVF) to prevent the migration of anions from the anode and optionally cathode compartments. The perm-selective membrane in the form of a film laminated to a support grid effectively prevents migration of anions into the filter cake and migration of fine particle solid to be filtered from the slurry into the anolyte and/or catholyte.