Osmotic concentration by membrane

Abstract From the Canadian patent

A hydrophobic semi-permeable membrane process (e.g. using hydrophobic microporous hollow fibers) for the concentration of a dilute solution of low osmotic pressure by osmotic distillation (also known as membrane distillation or membrane evaporation), which is a separation process using as its driving force the difference in the osmotic pressure between two fluids (e.g. fruit juice and seawater) separated by a hydrophobic semi-permeable membrane to achieve a concentration of the fluid having the lower osmotic pressure (e.g. fruit juice). When coupled with reverse osmosis means there is provided a method for recovery of solvent (e.g. potable water) from the process e.g. desalination of, …