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How does the increase in filter cake affect the flow rate?

(a) Increase then decrease

(b) Increase

(c) Decrease

(d) Does not depend

I got this question during a job interview.

I need to ask this question from Filtration at Constant Volumetric Flow in chapter Filtration of Food Processing Unit Operations

1 Answer

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Best answer
Correct choice is (b) Increase

Easiest explanation: A filter cake is formed by the substances that are retained on a filter. The filter cake grows in the course of filtration. With increasing layer thickness, the flow resistance of the filter cake increases.

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