How did the purifying drinking water from towns and cities
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A typical water treatment process. Coagulation and flocculation - Chemicals are added to the water. ... Filtration - The clear water on top passes through filters composed of sand, gravel and charcoal to remove dissolved particles such as dust, parasites, bacteria, viruses and chemicals.
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Filtration - The clear water on top passes through filters composed of sand, gravel and charcoal to remove dissolved particles such as dust, parasites, bacteria, viruses and chemicals
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