Patent ID: 6793824
Filing Date: 2004-09-21
Classification: A01G,A23L,B01D,C02F,Y02A

Abstract:
A method for purifying a water source comprising water and at least one suspended solid, dissolved solid, pollutant, salt, and biological material, the method comprising the steps of:providing a hydrophilic membrane, the membrane having a first surface adjacent a first volume and a second surface adjacent a second volume; placing the water source in contact with the first surface; ensuring that a humidity differential exists between the first volume and the second volumes, said humidity differential causing the water in the first volume to pass through the membrane and into the second volumes, wherein said water passes through the first and second surface of the member as a vapor, and wherein at least one of the suspended solids, dissolved solids, pollutants, salts and biological materials is retained in the first volume by the first surface of the membrane.