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CramPuppy - Free Revision Notes » Gcse » Chemistry » Water Purification

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There are 3 main processes undertaken in the water purifying process:

The different stages are listed in more detail below:

Water pumped from river into a reservoir
Water fed into sedimentation tank where solids settle
Sand beds filter out smaller particles
Chlorine added to water to kill germs
Sulphur Dioxide then removes the chlorine
Possibly, water is filtered through GAC (Granular Activated Carbon). This improves the taste and smell of the water
Possibly, fluorides added to water
Water is then pumped to its users

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by: Guest
Total views: 802
Word Count: 114
Date: Thu, 9 Aug 2007 Time: 12:00 AM
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