Filtration rate through a filter cake is proportional to (where, S = filtering surface R = specific cake resistance μ = viscosity of the filtrate) ?
Correct answer: D. All A., B. & C.
- A. S
- B. 1/R
- C. 1/μ
- D. All A., B. & C.
Explanation
Darcy’s filtration relation gives rate proportional to SA/(μR) for a fixed pressure drop, so increasing filter area or decreasing viscosity and cake resistance increases the rate. Therefore all three listed proportionalities apply.
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