Any of the mechanical, chemical, or biological processes used to modify the quality of waste water in order to make it more compatible or acceptable to humans and their environment
The processing of wastewater for the removal or reduction of contained solids or other undesirable constituents Often chlorine is added to wastewater before it is returned to a source (river, etc )
Water that is discharged from homes and businesses from sinks, toilets, washers, showers, etc It is treated through a series of separation and aeration processes A small amount of chlorine is added to Austin's wastewater before it enters the Colorado River