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where is used water treated and cleaned?

Sagot :

Answer:

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. Disinfection - Chlorine or chloramine is added to kill parasites, bacteria, viruses and germs.

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.

hope it helps :)