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A Cromaflow sequencing batch reactor from Cromaglass Corp. using submersible pumps to provide air and mixing with a venturi system receiving air through intake pipes from the atmosphere. (Photos courtesy of Sara Heger)
To maintain aerobic conditions, large quantities of oxygen must be provided. If the influent to the ATU has an ultimate BOD of 100 mg/L, then 100 mg of dissolved oxygen per liter of influent must be provided to satisfy the oxygen demand. The primary function of the aeration system...
