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[Document title]
Introduction
Filtration is a common laboratory technique which involves separation of solids mixed about
with fluids. This works by passing the suspension through a porous material. The solid
component is retained while the liquid passes through the membrane e.g., filter paper.
The mixture is known as the slurry, the solids are known as the filter cake and the liquid
(usually clear) is the filtrate.
This has many uses in the food, pharmaceutical and biological processing industries.
Materials and Methods
Procedure was done as in the lab manual.
Mathematical Modelling
The following values needed to be evaluated:
Cake porosity
Tf
Bed permeability
Specific Surface
Specific Resistance
This was done using functions on excel.
Results and Discussion
The following values were evaluated on excel
c
Vf
B
S
r
4E-07
1500
2E-16
9E-17
1E-11
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[Document title]
Conclusion
The values for this experiment are quite small for what was expected. In some case, so small
they can almost be negligible. These values could be incorrect due to conversion issues as
well human error.
Filtration is a mechanical separation technique, with a wide range of equipment available
commercially. The equipment can be classified based off the driving force used. These
forces can be:
Gravity
Pressure
Vacuum
Centrifugal
This experiment used a plate and frame press to filter the water from the slurry. This is done
by using pressure as a driving force but this form of filtration can be used by either keeping
pressure of filtrate flow constant.
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