Question

Filtration theory is explained by

• A. Darcy equation
• B. Dalton's law
• C. Stokes law
• D. Fick's law

Hint:

Darcy's law: The "D" is for "Driving" the fluid through the "Filter".

Answer 1

The Correct Option is A

Step 1: Concept
Filtration is the separation of solids from a fluid by passing it through a porous medium.

Step 2: Meaning
Mathematical models are needed to predict the rate of flow through the filter bed.

Step 3: Analysis
Darcy’s equation ($V = \frac{KA\Delta P}{\eta L}$) describes the flow of a fluid through a porous medium. Stokes law is for sedimentation; Fick's law is for diffusion; Dalton's law is for partial gas pressures.

Step 4: Conclusion
Darcy's equation is the fundamental law governing filtration rates. Final Answer: (A)