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Earth and Human Activity: Earth’s Water Systems
Protecting Water From Pollution - II
Description
Protecting Water From Pollution - II
Treating the water supply means cleaning water to make it safe for people to drink, cook with, and use in everyday life. Water from natural sources like rivers, lakes, and underground aquifers often contains dirt, harmful bacteria, or chemicals. Before it reaches our homes, water goes t...
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Transcript
Pollution can make water unsafe, so it must be treated carefully. The following steps purify it to make it safe to drink.
The first step involves coagulation and flocculation. During coagulation, special chemicals called coagulants are added to the water and are gently mixed. The tiny particles in the water stick together to form small clu...
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