Question

rate of filtration is expressed in the from of 1.Other: 2.Stock s law3 Ficks law4 Darcy's law5 None of these​

Answer 1

The rate of filtration is expressed in the from of -

4)Darcy's law

• Darcy's law is an equation that describes the flow of a fluid through a porous medium.

• The equation is V = KA ∆ P/ µ l.

• Where , V = Volume of filtrate,

K = permeability coefficient

A = Area of filter bed.

∆P = Pressure drop across filter medium &

filter cake.

l = Thickness of filter cake

µ = Viscosity of filtrate.

• According to Darcy law the factors which affect the rate of filtration are -

• 1)Surface area of filter media - The rate of filtration is directly proportional to the surface area of filter media.

• 2)Pressure difference on the liquid and below the filter medium: rate of filtration is directly proportional to it.

• 3) Viscosity - The rate of filtration is inversely proportional to it.

• 4)Thickness of cake: rate of filtration is inversely proportional to it.