Potable Water

Topic 10 - Using Resources
Written By Atheridge Tuition

Fresh water is collected from rivers and lakes in the UK.

Describe the stages used to treat this fresh water to make it potable.

[4 marks]

Visual Mark Scheme Breakdown

    • Filter beds

    • Remove solids

    (2 marks)

A vector graphic of a filter bed with 3 layers of sand and gravel, showing water with solids (black circles) flowing through and coming out a the bottom without solids. Text reads: Filter beds remove solids

    • Chlorine/ UV light

    • Sterilises/ destroys microbes

    (2 marks)

A vector graphic showing a tank with a glowing green border and water inside it. Text reads: Chlorine destroys microbes.
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