Which filtration device relies on centrifugal force to separate solids from liquids?

• A. Reverse Osmosis Filter
• B. Centrifugal Filter
• C. Self-Cleaning/Flushing Filter
• D. Enclosures

Answer: (B)

Centrifugal separation relies on spinning the fluid so that heavier solids experience stronger outward inertia than the liquid. As the mixture speeds up, solids are driven to the outer wall or a collection area, where they’re removed, while the clarified liquid exits. A centrifugal filter is designed around this idea, using rotation to concentrate and separate solids from the liquid without needing membranes or backflushing. This approach is different from a reverse osmosis filter, which uses a semipermeable membrane and applied pressure to push water through while rejecting solutes, and from a self-cleaning/flushing filter, which relies on cleaning cycles rather than centrifugal separation. Enclosures, meanwhile, are just housings and don’t perform filtration.