Water Purification

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

• Filtration
• Bacterial Oxidation
• Chlorine Treatment

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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