1. water that has been used and contains waste products, especially from homes, businesses, or industrial processes

Examples

• The city built a new plant to treat wastewater before releasing it into the river.
• Wastewater from the factory must be filtered to remove harmful chemicals.
• Many communities are investing in wastewater recycling programs.
• The wastewater treatment facility processes millions of gallons daily.
• Untreated wastewater can contaminate groundwater supplies.
• The new regulations require stricter monitoring of industrial wastewater.