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A wastewater treatment plant has a design average flow of 15,000 m3/d. The engineer wishes to use rectangular clarifiers for primary treatment. Design the rectangular

A wastewater treatment plant has a design average flow of 15,000 m3/d. The engineer wishes to use rectangular clarifiers for primary treatment. Design the rectangular tanks for a maximum overflow rate of 42 m3/m2·d and a minimum detention time of 2 h. Which criteria govern the design?

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