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Activated sludge, a comparison of oxygen and air systems : a report of the ASCE Task Committee on Pure Oxygen Activated Sludge of the Committee on Water Pollution Management of the Environmental Engineering Division of the American Society of Civil Engineers
- "Activated sludge, a comparison of oxygen and air systems : a report of the ASCE Task Committee on Pure Oxygen Activated Sludge of the Committee on Water Pollution Management of the Environmental Engineering Division of the American Society of Civil Engineers"