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3. An aeration tank has the volume of 200m' with 4m depth. The experiment is conducted at 20 C for tap water. The oxygen transfer

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3. An aeration tank has the volume of 200m' with 4m depth. The experiment is conducted at 20 C for tap water. The oxygen transfer rate is 18.7 kg/hr. (1) Determine the oxygen solubility at 20'C and latm (oxygen in air is 21%), (2) Determine the mean hydrostatic pressure on the rising air bubbles, (3) Determine the overall volumetric mass transfer coefficient in the liquid phase.3. An aeration tank has the volume of 200m' with 4m depth. The experiment is conducted at 20 C for tap water. The oxygen transfer rate is 18.7 kg/hr. (1) Determine the oxygen solubility at 20'C and latm (oxygen in air is 21%), (2) Determine the mean hydrostatic pressure on the rising air bubbles, (3) Determine the overall volumetric mass transfer coefficient in the liquid phase

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