25/08/2025
Filtration is a process that separates solid particles from a fluid (liquid or gas) by passing the mixture through a porous material that blocks the solids while allowing the fluid to pass through according to Biology Online. Think of it like straining pasta: the water passes through the holes of the strainer, but the pasta is retained.
Here's a more detailed breakdown:
The Goal: To separate a solid from a liquid or gas (or a supercritical fluid).
The Mechanism: A filter medium (like filter paper or sand) with tiny pores is used to block the solid particles while allowing the fluid to flow through.
Key Terms:
Filter Medium: The material that does the filtering (e.g., filter paper, sand, a membrane).
Filtrate: The fluid that passes through the filter.
Residue: The solid particles that are retained by the filter.
Examples:
Coffee brewing: Coffee grounds are trapped by the filter paper while the coffee liquid passes through.
Water purification: Filtration can remove dirt and other particles from water, making it cleaner.
Industrial processes: Filtration is used in many industries to separate materials.
The human body: Kidneys filter waste from the blood.
Ref.www.google.com
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