Metal particles can be removed using:

Magnetic Filters: Capturing ferrous metals with magnetic fields.
Fine Filtration: Employing filters with low micron ratings to trap small particles.
Centrifugation: Separating metals based on density differences.
Electrostatic Precipitators: Using electric charges to attract particles.
Ultrafiltration: Applying membranes for sub-micron particle removal.
Removing metal particles prevents abrasive wear and extends equipment life.