What you can see in this pictures ?. DO YOU KNOW FROM WHERE WE GET CLEAN WATER? STREAM WATER TAP WATER. RAINFALL WELL WATER. Can we drink this water ?. This dirty water is called as WASTE WATER OR SEWAGE. Different sources of waste water.
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Use of chlorine to clean water
Removing the impurities and contaminants
SEWAGE ORWASTE WATER
SEWAGE TREATMENT PLANT
A process of removing pollutants or contaminants from waste water.