Filtration is a process that uses a medium to separate solids from liquids or gases by allowing only the fluid to pass through. There are different methods of filtration including hot filtration, cold filtration, and vacuum filtration. Hot filtration is used to prevent crystal formation when separating solids from a hot solution. Cold filtration rapidly cools a solution to form very small crystals. Vacuum filtration is preferred for small batches to quickly dry small crystals using a Buchner funnel, filter paper, Buchner flask, and vacuum source. Filtration removes particles and some microbes from water and comes in various household or point-of-use forms, but the effectiveness in reducing microbes varies depending on the type of microbe and filtration system

1. Filtration
By :-
Vinit Shahdeo
B.tech-IT
VIT University

2. What is Filtration…???
 Filtration is commonly the mechanical or
physical operation which is used for the
separation of solids from fluids(liquids or gases)
by interposing a medium through which only
the fluid can pass.
 The fluid that passes through it is called
Filtrate.

3. Different methods of filtration
Hot Filtration
Cold Filtration
Vaccum Filtration

4. Hot Filtration
This method is commonly used
to separate solids from a hot
solution.
This is done in order
to prevent crystal formation in
the filter funnel and other
apparatus that comes in contact
with the solution.

5. Cold Filtration
This method uses ice-bath in
order to rapidly cool down the
solution to be crystallized rather
than leaving it out to cool it
down slowly in the room
temperature. This technique
results to the formation of very
small crystals as opposed to
getting large crystals by adding
the solution down at room
temperature.

6. Vaccum
Filtration
This technique is most preferred for
small batch of solution in order to
quickly dry out small crystals.
This method requires a bucher
funnel,filter paper of smaller diameter
than the funnel,Buchner flask and
rubber tubing to connect to vaccum
source.

8. More about Filtration
Filtration is another ancient and widely used technology
that removes particles and at least some microbes from
water. A variety of filter media and filtration processes are
available for household or point-of-use treatment of water.
The practicality, ease of use, availability, accessibility and
affordability of these filtration media and methods vary
widely and often depend on local factors. The effectiveness
of these filtration methods in reducing microbes also varies
widely, depending on the type of microbe and the type and
quality of the filtration medium or system.

9. Presented By:
VINIT SHAHDEO
VIT University
Vellore
vinitshahdeo@gmail.com