Sherpa
Question
What are the steps in treating fresh water?
1 year ago
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Wilbert Bosco
1 Reply
Verified Sherpa Tutor
Raw water contains dissolved ions, microorganisms, pollutants and insoluble materials (e.g. sand and stones).
- Sedimentation: Large, insoluble particles to settle to the bottom. The cleaner water at the top is used for the next stage.
- Filtration: The it trickles through layers of sand and gravel which removes smaller insoluble particles.
- Chlorination: Chlorine gas is mixed into the water to kill microorganisms.
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