Filter aids like asbestos, kieselguhr, diatomaceous earth etc. are used to
increase the porosity of the final filter cake & reducing the cake resistance
during filtration. Filter aid is
(A) Added to the feed slurry
(B) Pre-coated on the filter medium prior to filtration
(C) Separated from the cake by dissolving solids or by burning it off
(D) All 'a', 'b' & 'c'
increase the porosity of the final filter cake & reducing the cake resistance
during filtration. Filter aid is
(A) Added to the feed slurry
(B) Pre-coated on the filter medium prior to filtration
(C) Separated from the cake by dissolving solids or by burning it off
(D) All 'a', 'b' & 'c'