Tehran Water Utility Identifies Scope to Replace Industrial Water With Treated Effluent

The deputy head of wastewater operations and development at the Tehran provincial water utility said in a report published Thursday, October 29, 2026 that recycled water could replace part of the province's industrial water demand. The official estimated potential substitution capacity at 275 million cubic metres a year. That figure describes potential, not recycled water already delivered to factories. If implemented, substitution could reduce industries' use of fresh water; the report did not announce a specific supply contract or implementation timetable.