Filtration Rate Calculator

Calculate filtration time, average flow rate, and cake thickness for constant-pressure filtration operations.

Slurry Volume to Filter

m³

Filter Area

m²

Specific Cake Resistance (α·c)

1/m²

Filter Medium Resistance

1/m

Pressure Drop

Filtrate Viscosity

Pa·s

Tab to move between fields

Filtration Time

13 s

Filtrate Volume

0.95 m³

Average Flow Rate0.08 m³/s

Estimated Cake Thickness0.03 m

How to Use This Calculator

Enter the Slurry Volume to filter in m³ and the Filter Area in m².
Enter the Specific Cake Resistance (α·c) in 1/m² — obtain from filtration lab tests or literature. Typical values range from 10⁸ to 10¹² 1/m² depending on particle size and slurry concentration.
Enter the Filter Medium Resistance in 1/m — typically 10⁶ to 10¹⁰ 1/m for filter cloths and membranes.
Enter the Applied Pressure Drop in Pa across the filter.
Enter the Filtrate Viscosity in Pa·s — water at 20°C = 0.001 Pa·s.
Read the Filtration Time in seconds, Average Flow Rate in m³/s, and Cake Thickness in m to plan filter cycle time and equipment sizing.

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