Process and Device for Desalinating Water.
Abstract
This patent application describes a device for desalinating salt or brackish water by reverse osmosis using osmotic pressure to supply the necessary power for the desalination process. A tank is divided into first and second compartments by a semi-permeable membrane and two liquids having different chemical potentials are placed in contact with opposite sides of the semi-permeable membrane. Part of one liquid passes by pressure-retarded-osmosis through the semipermeable membrane and forms a pressurized mixed solution of greater volume to provide potential energy which drives a piston which, in turn, provides power for desalination of salt or brackish water by reverse osmosis. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 11, 1978
- Accession Number
- ADD005433
Entities
People
- Michael E. Mccormick
Organizations
- United States Department of the Navy