Filtration of water in a paper mill is done by a/an __________ filter. (A) Open sand (B) Plate and frame (C) Vacuum leaf (D) Sparkler

Filtration of water in a paper mill is done by a/an __________ filter.
(A) Open sand
(B) Plate and frame
(C) Vacuum leaf
(D) Sparkler
by

1 Answer

Answer :

(A) Open sand
by

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Filter aid is used to (A) Increase the rate of filtration (B) Decrease the pressure drop (C) Increase the porosity of the cake (D) Act as a support base for the septum

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Description : 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 ... the cake by dissolving solids or by burning it off (D) All 'a', 'b' & 'c'

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