A wastewater stream at 25C is to be treated using a reverse osmosis syste. The wastewater...

 

Transcribed Image Text:

A wastewater stream at 25C is to be treated using a reverse osmosis syste. The wastewater has a flowrate of 50 gal/min and a concentration of 5000 mg/L of sodium chloride. A reverse osmosis vendor has recommended a membrane with the following characteristics: permeability coefficent = 1.9X106 gmol/cm*s*atm=K area for a bundle=300ft optimal pressure differential across the membrane-500psi=Delta P Determine: a) Osmotic pressure of the solution b) the water flow through the membrane c) the number of units required A wastewater stream at 25C is to be treated using a reverse osmosis syste. The wastewater has a flowrate of 50 gal/min and a concentration of 5000 mg/L of sodium chloride. A reverse osmosis vendor has recommended a membrane with the following characteristics: permeability coefficent = 1.9X106 gmol/cm*s*atm=K area for a bundle=300ft optimal pressure differential across the membrane-500psi=Delta P Determine: a) Osmotic pressure of the solution b) the water flow through the membrane c) the number of units required