Different methods of purifying water in the city
According to oxford biology textbook class 8
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When reverse osmosis is not available, there are 4 water purification methods that you can use to make your water safe for drinking.
1 – Boiling. Boiling water is the cheapest and safest method of water purification. ...
2 – Filtration. ...
3 – Distillation. ...
4 – Chlorination.
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The methods used include physical processes such as filtration, sedimentation, and distillation; biological processes such as slow sand filters or biologically active carbon; chemical processes such as flocculation and chlorination; and the use of electromagnetic radiation such as ultraviolet light.
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