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More Than Energy Saved Des Moines WRA improves reliability with medium voltage drives

June 28, 2013

More Than Energy Saved - Des Moines WRA improves reliability with medium voltage drives

Introduction: The Des Moines, Iowa Metropolitan Wastewater Reclamation Authority (WRA) serves 17 area municipalities, counties and sewer districts. The central wastewater treatment facility provides BOD (Biochemical Oxygen Demand) removal and nitrification for these communities prior to discharging treated water into the Des Moines River. The plant has a design hydraulic capacity of 200 mgd (million gallons per day), with current average dry weather flows ranging between 40 and 60 mgd. Three shifts of operators are on duty to keep the plant running smoothly.....read more.