The municipality proposes to use reverse osmosis to remove CaCl2 from a salt water stream, whose flow rate is 3.25 m3/h. The temperature is 18°C and the CaCl2 concentration in the feedwater is 11,100 mg/L. The available membrane area has been determined to be 10 m2. The characteristics of the membrane are: water mass transfer coefficient through the membrane, KW = 0.73 L/m2-bar-h; mass transfer coefficient for the solute across the membrane, KS = 0.60 L/m2-h; Osmotic coefficient of the feed water is 0.96 and for the permeate it is 0.99. The water recovery is 12%. a) Estimate the flow of water through the membrane b) Estimate the concentration of CaCl2 in the permeate in mg/L. c) Estimate the osmotic pressure of the feed and permeate d) The process and the membrane used meet the requirements of the municipality

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Fungal Infections

Fungal infection can be defined as an infectious disease caused by fungi. A fungal infection is also referred to as mycosis. Fungal infections are contagious, spreading from person to person. Mycosis can be contracted even from an infected animal or contaminated soil. The most common symptom is skin rashes and vaginal discharge in females.