Illustration A vessel 1.0 m in diameter and 3.0 m deep (measured from gas sparger at the "bottom to liquid overflow at the top) is to be used for stripping chlorine from water by sparging with air....

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Extracted text: Illustration A vessel 1.0 m in diameter and 3.0 m deep (measured from gas sparger at the "bottom to liquid overflow at the top) is to be used for stripping chlorine from water by sparging with air. The water will flow continuously upward at the rate 8 x 10-4 m'/s (1.7 ft'/min). Airflow will be 0.055 kg/s (7.28 lb/min) at 25°C. The sparger is in the form of a ring, 25 cm in diameter, containing 50 orifices, each 3.0 mm in diameter. Estimate the specific interfacial area and the mass-transfer coefficient.