Chemical Plant III
Filtration
Lecturer: N. Nkosi
,Introduction
• The separation of solids from a suspension in a liquid by m
porous medium or screen which retains the solids and allow
liquid to pass through is termed Filtration
• Filtration is a mechanical operation and it is less demanding in
opposed to processes such as evaporation or drying
• A typical filtration operation is illustrated in Figure 1
,Principle of Filtration
, • In a typical filtration operation, the following takes place:
1. During the initial period of flow, particles are deposited on the s
the filter medium (e.g. cloth) to form the true filtering medium
2. The cake gradually builds up on the medium and the res
progressively increases
3. After filtration, the filter cake is removed and the filtrate is colle
Filtration
Lecturer: N. Nkosi
,Introduction
• The separation of solids from a suspension in a liquid by m
porous medium or screen which retains the solids and allow
liquid to pass through is termed Filtration
• Filtration is a mechanical operation and it is less demanding in
opposed to processes such as evaporation or drying
• A typical filtration operation is illustrated in Figure 1
,Principle of Filtration
, • In a typical filtration operation, the following takes place:
1. During the initial period of flow, particles are deposited on the s
the filter medium (e.g. cloth) to form the true filtering medium
2. The cake gradually builds up on the medium and the res
progressively increases
3. After filtration, the filter cake is removed and the filtrate is colle
