Seitz Filter

Principle of Seitz Filter

• The Seitz filter operates on the principle of depth filtration, using a thick layer of porous material to trap particles throughout the filter medium.

Construction of Seitz Filter

1. Filter Pads: Made of cellulose, diatomaceous earth, or other fibrous materials.
2. Filter Housing: Holds the filter pads in place, typically made of metal or plastic.
3. Support Plates: Ensure even distribution of pressure across the filter pads.
4. Inlet/Outlet Ports: For fluid entry and exit.

Working

1. The fluid enters the housing and flows through the filter pads.
2. Particles are trapped within the porous structure of the pads.
3. The filtered fluid exits through the outlet port.
4. The filter pads are replaced when clogged.

Uses

• Beverage industry (e.g., wine and beer filtration)
• Pharmaceutical industry
• Laboratory applications

Merits

• High dirt-holding capacity.
• Effective for removing fine particles and microorganisms.
• Relatively low cost.
• Simple to operate.

Demerits

• Filter pads need regular replacement.
• Not suitable for high-pressure applications.
• Limited reusability compared to metal filters.

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