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| Number | Title | Issue Date |
| 8083948 | Method and apparatus for generating fresh water An object is to provide a fresh water generating method that is capable of efficiently producing purified water, such as fresh water, from unpurified water, such as sea water. Provided is a fresh water generating method for generating fresh water by way of reverse o... | 12/27/2011 |
| 8070955 | Method and apparatus for generating fresh water An object is to provide a fresh water generating method that is capable of efficiently producing purified water, such as fresh water, from unpurified water, such as sea water. Provided is a fresh water generating method for generating fresh water by way of reverse o... | 12/06/2011 |
| 8062528 | Apparatus and method for self-heating and self-hydrating foods and beverages A method and components for heating and hydrating foods and beverages using an exothermic and pressure generating chemical reaction are described. The exothermic reaction can be initiated by water, spark, electrical impulse, squib, friction, or shock to heat non-pot... | 11/22/2011 |
| 8048311 | Methods and systems for zero discharge water treatment Methods and systems for a zero discharge waste water treatment system are provided. The system includes a filtration train including filter media having successively smaller diameter filtration elements, a reverse osmosis apparatus including a pump and a membrane co... | 11/01/2011 |
| 8038887 | Membranes for nanometer-scale mass fast transport Nanoporous membranes comprising single walled, double walled, and multiwalled carbon nanotubes embedded in a matrix material were fabricated for fluid mechanics and mass transfer studies on the nanometer scale and commercial applications. Average pore size can be 2 ... | 10/18/2011 |
| 8025804 | Continuous closed-circuit desalination method without containers A method for continuous closed-circuit consecutive sequential desalination of a salt water solution by reverse osmosis without using containers. The closed circuit includes one desalination module or more than one desalination modules connected in parallel. The meth... | 09/27/2011 |
| 7993524 | Membranes with embedded nanotubes for selective permeability Membranes for filtration by size exclusion are formed from open-ended nanotubes embedded in a polymeric matrix. The matrix forms a layer whose thickness is substantially less than the average length of the nanotubes, allowing the nanotubes to be randomly oriented th... | 08/09/2011 |
| 7981295 | Enhanced high water recovery membrane process Disclosed is an economical process for the purification of water containing soluble and sparingly soluble inorganic compounds using single-stage or two-stage membrane processes that integrate membrane water purification with chemical precipitation softening and resi... | 07/19/2011 |
| 7976710 | Membrane and process for the recovery of acid A cross-linked polyvinyl sulfate, copolymer of polyvinyl sulfate and polyvinyl alcohol, or Nafion® membrane is used for recovering sulfuric acid from a feed mixture comprising predominantly acid and water under reverse osmosis conditions wherein sulfuric acid is en... | 07/12/2011 |
| 7947181 | Reverse osmosis system An apparatus for purifying water according to one embodiment of the present invention may include a feed line fluidically connected to a reverse osmosis module containing a semipermeable membrane. The semipermeable membrane produces purified water and a concentrate.... | 05/24/2011 |
| 7931809 | Desalination methods and systems that include carbonate compound precipitation Desalination methods that include carbonate compound precipitation are provided. In certain embodiments, feed water is subjected to carbonate compound precipitation conditions prior to desalination. In certain embodiments, desalination waste brine is subjected to ca... | 04/26/2011 |
| 7910004 | Method and system for monitoring reverse osmosis membranes A monitoring system and a method for monitoring a reverse osmosis (RO) membrane in an RO unit is capable of detecting the formation of mineral salt crystals on the surface of the RO membrane. The monitoring system includes a reverse osmosis monitoring cell coupled t... | 03/22/2011 |
| 7906025 | Systems and methods for treatment of liquid solutions for use with livestock operations Methods and systems for enhancing of quality of liquid by treating a source liquid to enhance the concentration of low zeta potential crystals and produce a treated liquid having a higher concentration of low zeta potential crystals that that of the source liquid. T... | 03/15/2011 |
| 7901580 | Method, apparatus, and processes for producing potable water utilizing reverse osmosis at ocean depth in combination with shipboard moisture dehumidification Devices and methods for producing purified water. The device includes a reverse osmosis subsystem, a dehumidification subsystem and a purified water storage tank fluidly coupled to the subsystems such that purified water produced by each can be locally stored. A veh... | 03/08/2011 |
| 7879243 | Solvent removal process A process for removing a solvent from a first solution, said process comprising positioning a selective membrane between the first solution and a second solution having a higher osmotic potential than the first solution, such that solvent from the first solution pas... | 02/01/2011 |
| 7871522 | Hybrid RO/PRO system A system which includes a separation element (11) employing semipermeable membrane material (17), which system is designed so that it can operate either in an RO mode to produce high quality water or in a PRO mode to generate power from two aqueous sol... | 01/18/2011 |
| 7871521 | Zero waste reverse osmosis system and downstream rinsing A system for regulating a reverse osmosis system to obtain zero wastewater includes a fresh water supply, a reverse osmosis apparatus, a concentrate storage tank and a permeate storage tank, a concentrate solenoid valve and a permeate solenoid valve, a permeate heat... | 01/18/2011 |
| 7862723 | Reverse osmosis system An apparatus for purifying water according to one embodiment of the present invention may include a feed line fluidically connected to a reverse osmosis module containing a semipermeable membrane. The semipermeable membrane produces purified water and a concentrate.... | 01/04/2011 |
| 7857978 | Membrane for filtering of water Disclosed are novel water membranes comprising lipid bilayers incorporating functional aqua-porins. The lipid bilayers are arranged in sandwich structures including hydrophilic or hydro-phobic support materials. Also disclosed are water purification devices/systems,... | 12/28/2010 |
| 7854847 | Process of purifying wood pulp with caustic-borate solution and recovering the purifying chemical Systems and methods for purifying wood pulp by caustic-borate extraction. The systems and method include a method for recovering both the caustic and borate compounds from the resultant hemicaustic effluent, so that they may be recycled and re-used. Efficient recove... | 12/21/2010 |
| 7842188 | Method for removal of guanidine compound from aqueous media Disclosed is a method for removing a neutral or an ionic guanidine compound from aqueous media optionally comprising an alkali metal halide, wherein the method is selected from the group consisting of (a) adsorption onto a carbonaceous adsorbent, (b) adsorption onto... | 11/30/2010 |
| 7828977 | Apparatus and method for isolating and/or eliminating at least one solute from a solution This relates to an apparatus and method for removing solutes from a solution using nano-filtration to provide a treated wine. ... | 11/09/2010 |
| 7771599 | System and method for using carbon dioxide sequestered from seawater in the remineralization of process water Disclosed is an improved method for the remineralization of process water in a desalination system. The method sequesters carbon dioxide gas (CO2) from seawater or concentrate (brine) of desalination process via a gas transfer membrane. The sequestered ca... | 08/10/2010 |
| 7749386 | Desalination system The invention provides methods and an apparatus for more efficiently and economically producing purified water from sea water or some other salty or brackish water source. The efficiency is derived from the co-location with a power plant or other thermal generating ... | 07/06/2010 |
| 7744760 | Method and apparatus for desalination A method and apparatus for purifying water are provided. A feed water such as seawater can be fed to a filter such as a nanofiltration membrane to produce a permeate that can, in turn, be fed to an electrodeionization system to produce fresh water. ... | 06/29/2010 |
| 7744761 | Desalination methods and systems that include carbonate compound precipitation Desalination methods that include carbonate compound precipitation are provided. In certain embodiments, feed water is subjected to carbonate compound precipitation conditions prior to desalination. In certain embodiments, desalination waste brine is subjected to ca... | 06/29/2010 |
| 7727400 | Low water recovery rate desalination system and method A low water recovery rate desalination system and method. This system and method enables the purification of water in a more environmentally sustainable manner than conventional systems. The environmental benefit of this invention is derived from its ability to desa... | 06/01/2010 |
| 7718069 | Water treatment process for oilfield produced water The invention relates to a method and system for treating an aqueous liquid containing dissolved minerals and dissolved hydrocarbons. Method steps and apparatus for treating a waste water feed stream are disclosed which utilize a warm lime softening system in fluid ... | 05/18/2010 |
| 7708890 | Method of rendering a radioactive and aqueous heat transfer liquid in a nuclear reactor to a reduced radwaste quantitative state and returning the remaining waste water volumes to an environmental release point for liquid effluents Environmentally protective Method of treating an aqueous radioactive fluid (AF) in a nuclear reactor cycle or radwaste system to selectively capture or remove radioactive isotopes in a reduced quantitative package to minimize radwaste generated and revitalize neutro... | 05/04/2010 |
| 7662290 | Integrated water decontamination plant and well pump arrangement The present invention removes contaminants from well water without creating the problem of large volumes of waste liquid disposal. It uses double-cone devices as pressure amplifiers which due to their lack of moving parts avoid the risk of additional contamination o... | 02/16/2010 |
| 7651616 | Apparatus and method for isolating and/or eliminating at least one solute from a solution This invention relates to an apparatus for removing solutes from a solution using nano-filtration means to provide a treated wine. ... | 01/26/2010 |
| 7645386 | Method of producing pure halide salts of alkaline and/or alkaline earth metal resulting from hydrolytic treatment of halogenous organic waste material Pure halogen salts of alkaline and/or alkaline earth metals or a mixture thereof are prepared by (I) hydrolytically heating a suspension of 1 part by weight of a halogenic, organic waste material in a comminuted state in 1-10 parts... | 01/12/2010 |
| 7645387 | Method of utilizing ion exchange resin and reverse osmosis to reduce environmental discharges and improve effluent quality to permit recycle of aqueous or radwaste fluid Method of maximizing resin utilization and optimizing reverse osmosis performance to polish an aqueous or radwaste fluid. The method provides resin scavenging of targeted isotopes and exposes filter media and resin to a higher influent activity concentration to enab... | 01/12/2010 |
| 7641799 | Method of separating isotopes A process in which isotopes of the same element belonging to the alkaline earth metals, transition elements and heavy metals having an atomic mass of less than 209, in particular lanthanide metals, are separated in an aqueous medium by treating an aqueous medium. | 01/05/2010 |
| 7628921 | Apparatus for continuous closed circuit desalination under variable pressure with a single container An apparatus for consecutive sequential closed-circuit desalination of a salt water solution by reverse osmosis having at least one circuit and a single container (CN), wherein the circuit includes at least one RO module (M1) connected in parallel. ... | 12/08/2009 |
| 7618538 | Procedure for elimination of boron from sea-water by reverse osmosis membranes The present invention relates to a procedure for elimination of boron from sea-water by reverse osmosis membranes characterized in that it comprises: adding to sea-water a composition consisting of at least one metal together with ... | 11/17/2009 |
| 7572378 | Recycled irrigation water treatment system including reverse osmosis A process for irrigation involves monitoring reclaimed water, and treating it when necessary. The reclaimed water is tested with monitors to obtain results for water quality characteristics, including: pH; residual chlorine; and, sodium. These results are inputted t... | 08/11/2009 |
| 7566402 | Semi-permeable membrane for use in osmosis, and method and plant for providing elevated pressure by osmosis to create power The present invention concerns a semi-permeable membrane for use in osmosis consisting of one thin layer of a non-porous material (the diffusion skin), and one or more layers of a porous material (the porous layer), where the porous layer has a structure where poros... | 07/28/2009 |
| 7550088 | Method and device for desalinating water while overcoming decreases in pressure The invention concerns a method of and an apparatus for continuously desalinating water by reverse osmosis, in particular desalinating sea water, wherein salt water is introduced under a first pressure by means of a delivery pump into a pressure compensating device,... | 06/23/2009 |
| 7537702 | Water purification system and modes of operation A water purification system comprising a thermal hydrolysis catalytic reactor, an adsorbent media bed and a reverse osmosis unit is provided. The water purification system may provide potable water from non-potable water, such as non-potable water contaminated with ... | 05/26/2009 |
