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📘 How does a water filter remove particles?

Follow water through pores, depth media, membranes, and activated carbon.

lessons

~10 min

to learn

🔬 Science

subject

Adults

level

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What you’ll learn

What a filter catches
Pore size
Depth filtration
Surface filtration
Flow resistance
Activated carbon
Coagulation
What passes through
Maintenance
The complete path

Questions this course answers

What does a sediment filter primarily remove?

Sediment filters retain particulate matter, not every dissolved substance.

Why does a clogged filter need more pressure for the same flow?

Obstructed pathways increase hydraulic resistance.

How does activated carbon remove many organic compounds?

Organic molecules can stick to activated carbon surfaces by adsorption.

Why do treatment plants often coagulate before filtering?

Coagulation and flocculation make otherwise persistent tiny particles easier to settle and filter.

What is the first step in choosing a water filter?

Different contaminants require different treatment mechanisms and verified claims.

Grounded in trusted sources

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