Question

19) Filter aids added to the liquid ( 1 marks)
To increase the porosity
To increase the cake pemeability
To increase the porosity and To
increase the cake pemeability
To increase the density​

Answer 1

Answer:

Filter aids added to the liquid

Clear Response

Mark for Review

To increase the porosity

To increase the cake

pemeability

Both a and b

O To increase the density

Answer 2

The right response in context to filter aid is 3rd option.

• Filter aid is any substance that is added to a liquid or used as a precoat on filter media to prevent filtration resistance from developing owing to filter cake or soilds blocking the pores of the medium.
• Because the solids in the filtering liquid build on the medium and obstruct the pores, it aids in increasing the porosity of the medium. Filter aid reduces solids collection and speeds up the filtration process.
• It also enhances cake permeability, which means that filtration effectiveness is maintained while the compresibility of cake on the filter medium is reduced.
• As a result, filter aid serves two purposes.