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Module 1: Filtración

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XSIQ
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Chemistry - Filtration

Filtration

Filtration is used to separate insoluble [1] solids from liquids.

During filtration the liquid is passed through a filter with holes that
allow the liquid to pass through but stop the solid particles.

A kitchen sieve is a simple filter. It lets water through but stops large
solid chunks like spaghetti. Paper filters are most often used in the
laboratory - they have much smaller holes than a kitchen sieve.

Filters with different size holes are used for different substances.
Sometimes it is possible to separate different types of solids by choosing
a filter that stops solids with large particles, but allows the smaller
ones to pass through.

Click to see a video of filtration being used in the laboratory.

In this water treatment plant, solid sewerage is removed from water by a
series of mesh filters.

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