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was found to be 6.28 m . Assume air is being provided at a rate of 1.12 m per m of water treated and that the detention time of the tank is 2.2 min. The pressure Pt at which air is forced into the diffuser is 256,920.02 N/m . Assume barometric pressure as 101,300 N/m , the depth from the surface to the diffuser as 2 m, and the temperature of water as 25°C. Calculate the power dissipation in the mixer.

6.18 The volume of a rapid.mix tank used to rapidly mix an alum coagulant in a water treatment plant is 6.28 m . The detention time of the tank is 2.2 min. The pressure P at which air is forced into the diffuser is 256,920.02 N/m . This developed a power dissipation for mixing of 3.24 hp. Assume baro. metric pressure as 101,300 N/m , the depth from the surface to the diffuser as 2 m, and the temperature of water as 25°C. Calculate the rate at which air is introduced into the mixer.

6.19 The volume of a rapid.mix tank used to rapidly mix an alum coagulant in a water treatment plant was found to be 6.28 m . Assume air is being provided

at a rate of 1.12 m per m of water treated and that the detention time of the tank is 2.2 min. The power dissipation of the mixer is 3.24 hp. The pressure Pi at which air is forced into the diffuser is 256,920.02 N/m . The depth from the surface to the diffuser as 2 m and the temperature of water as 25°C. What is the barometric pressure at which the mixer is operated?

6.20 The volume of a rapid.mix tank used to rapidly mix an alum coagulant in a water treatment plant was found to be 6.28 m . Assume air is being

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