CHAPTER 7 WASTE WATER
The waste water released by homes, industries, hospitals, offices, etc. is called sewage. Sewage is basically liquid waste. The impurities that sewage contains are called contaminants.
Sewage treatment is the process of removing pollutants or contaminants from the waste water.
WASTEWATER TREATMENT PLANT (WWTP)
Measures to reduce sewage and diseases
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