What do you understand by wastewater?
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Wastewater is "used water from any combination of domestic, industrial, commercial or agricultural activities, surface runoff or stormwater, and any sewer inflow or sewer infiltration". ... Wastewater can contain physical, chemical and biological pollutants
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the water which is not useful for work is wastewater with dirt and germs in it which harmful. and it may cause many disease. the wastewater is produced house, factory, shop, etc..
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