Particle Technology

Filtration

Problems 4.10

Question 3.i

Constant rate filtration


The same quantity of a similar suspension to problem 2 was filtered on the same filter at constant rate until 2.3 litres of filtrate had been recovered. The following empirical equation for pressure was observed

constant rate filtration equation for pressure

and the general filtration equation is: general filtration equation

Assume an incompressible filtration: i.e. alpha, c as well as A and viscosity were unchanged from question 2.


The pressure drop over the medium during the filtration was (Pa):

  a) need Rm
b) 168t+6670
c) 6670
d) need dV/dt
In a constant rate filtration pressure increases linearly with time, or filtrate volume.

Hint Calculator Ready to move on

Home      Book download      Video solutions      Interactive problems      Problem solutions      Size Analysis Expert system