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    STM Aerotor Biological Nutrient Removal System

    The STM-Aerotorâ„¢ Biological Nutrient Removal System uses Integrated Fixed Film and Activated Sludge (IFAS) technology as part of a process that provides biological nutrient removal for municipal and industrial wastewater treatment. How it works: With every rotation, the STM-Aerotor captures atmospheric air, draws it down into mixed liquor in a steel or concrete basin, and slowly releases it as ...


    By WesTech Engineering, Inc.

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