Disinfection Evaluation for Primary and Secondary Effluent at the Great Lakes Water Authority Water Resource Recovery Facility 1,700 MGD Dual Outfall System

The Great Lakes Water Authority (GLWA) Water Resource Recovery Facility (WRRF) has 1,700 million gallons per day (mgd; 75 m3s-1) wet weather treatment capacity through two outfalls, the Detroit River Outfall (DRO) as the primary outfall and during times of high flow or high river levels, also discharging to the Rouge River Outfall (RRO). Discharges to the DRO are disinfected, but primary effluent is not disinfected during wet weather discharges. This study was conducted to add disinfection to the primary effluent and dechlorination, if needed to the RRO.