How concentration of slurry affect the rate of filtration?

Aim: To study the effect of concentration on the rate of filtration.

Requirements: Chemicals: Calcium carbonates And water

Instruments/ Apparatus: Beakers, Buchner funnel Of Various sizes, Glass rod, Measuring Cylinder, Stopwatch.

Principle:

The rate of filtration depends on the concentration of solids. As the concentration of solids in the suspension increases the thickness of the filter cake increases. As a result, the rate of filtration decreases. This can be estimated by collecting a definite quantity of filtrate in the given interval for a given set of conditions.

Procedure:

(Effect of concentration on rate of filtration):

  1. Buchner funnels with filter paper are arranged properly.
  2. Different concentrations of 100 ml of calcium carbonate slurry (5%, 10%, and 15% w/v) are prepared in water
  3. The prepared slurries are passed through filtration assembly separately.
  4. The time required to collect 50ml of filtrate is recorded.
  5. The rate of filtration is calculated using the following equation.

Observation And calculations:

rate of filtration

Observation Table:

Sr. noSample NameConcentration Of SolutionFiltration time required for 50 ml of filtrate (min)Rate of filtration (ml /min)
i5 % w/v calcium carbonate slurry5%  
ii10 % w/v calcium carbonate slurry10%  
iii15 % w/v calcium carbonate slurry15%  

Results:

Make sure you also check our other amazing Article on: To study the effect of viscosity on the rate of filtration
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