41
Masahiro Kuwata: Electrodeionization apparatus. Organo Corporation, Rosenthal & Osha L, August 14, 2001: US06274019 (43 worldwide citation)

Water to be treated (feed water) flows through a series of desalination chambers filled with ion exchange resins on which impurity ions in the feed water are removed. Each desalination chamber consists of a cation-permeable membrane on one side with an anion-permeable membrane on the other side. The ...


42
Ross M Brown: Combination plumbing fixture for water purification system having waste bypass flow. Desalination Systems Escondido CA, Thomas D Lane, November 16, 1971: US3620241 (42 worldwide citation)

In a water purification system wherein a supply of pressurized, potable, product water is to be dispensed as required, and a small volume flow of nonpressurized byproduct waste water is to be discharged to a potentially contaminated drain, a combination plumbing fixture comprises a body with a valve ...


43
Alvin Kobashikawa, Yu Si Fok: Wave energy conversion device for desalination, ETC. Leighton K Chong, April 4, 2006: US07023104 (41 worldwide citation)

An impulse-type “wave motor” employs a seabed-mounted or supported structure mounting a wave energy absorbing panel on a hinged lever arm for reciprocation motion to obtain optimal absorption of wave energy from wave motion in the sea. For deepwater wavelengths of L, the panel is optimally positione ...


44
Robert L Somerville, Samuel F Sweat, John L Sullivan: Method of converting brines to useful products. Killworth Gottman Hagan & Schaeff, January 6, 1987: US04634533 (41 worldwide citation)

A process is provided for the recovery of one or more useful products including fertilizer, animal feed supplements, iron oxide, magnesia, salt, purified brine, and purified water from brines. The source of the brines can be oil and gas field wastes, seawater or effluent from a seawater desalination ...


45
Theodore A Kuepper: Zero waste effluent desalination system. Marvin E Jacobs, May 28, 1996: US05520816 (41 worldwide citation)

The present invention is directed to a water desalination system that can be used in a home or commercial entity which uses a reverse osmosis or nanofilter membrane element in a unique flow configuration which promotes self cleaning of a membrane element to prevent a buildup of salts and minerals on ...


46
Walter Patapoff, Jim Lung Wong: Miniaturized handheld desalination field unit. November 11, 1997: US05685980 (40 worldwide citation)

A water purification unit including a water inlet having a filter adapted to remove undissolved contaminants from a raw water source. The water inlet is coupled to a water reservoir including a semi-permeable membrane adapted to remove dissolved contaminants from raw water source. The filter and the ...


47
Bresler Sidney A: Desalination process. Bresler and Associates, February 1, 1972: US3639231 (40 worldwide citation)

Brackish water is desalinated by contacting it with one or more ion exchange resins followed by reverse osmosis. Brine rejected in reverse osmosis treatment can be used to regenerate a used ion exchange resin.


48
James F Klausner, Renwei Mei: Diffusion driven desalination apparatus and process. University of Florida, Akerman Senterfitt, July 19, 2005: US06919000 (39 worldwide citation)

A diffusion driven desalination apparatus and related method includes structure for receiving a heated water stream and creating at least one region having a thin film of water and structure for forcing a low humidity air stream over the thin film of water, wherein water from the thin film of water ...


49
Mansour S Bader: Methods to de-sulfate saline streams. September 7, 2010: US07789159 (39 worldwide citation)

Methods are disclosed to de-sulfate saline streams such as seawater, brine from seawater desalination plants, and the like. The disclosed methods can also co-produce de-ionized water and inorganic materials from such de-sulfated saline streams.


50
Robert A Uhlinger: Means for desalination of water through reverse osmosis. Sand and Sea, Duane C Bowen, July 27, 1982: US04341629 (39 worldwide citation)

Water from a source is fed to a reverse osmosis unit having a membrane which divides the stream into a first permeate product and a first concentrate. The first permeate product is stored in a tank until a selected quantity is collected and then the source is disconnected from the pump which next de ...



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