The process employed at the Elmhurst Wastewater Reclamation Facility (WRF) are designed to remove grit, provide primary treatment, extended aeration, final clarification, and disinfection of the wastewater. This treatment is accomplished by the movement of the sewage through a series of treatment tanks. The wastewater treatment process involves:
The Elmhurst WRF has the capacity to fully treat 20 million gallons of wastewater per day (mgd) and can give primary treatment to an additional 40 mgd of wastewater, if necessary, during excess flow conditions.
The concentration of suspended solids in an average days flow of raw sewage entering the Elmhurst WRF is approximately 6,540 pounds of dry solids. View a flow schematic of the treatment process.