17733 results about "Purified water" patented technology

Systems, methods, and devices for preparation of purified water and medicaments for various uses including blood treatment are described. Methods, devices, and systems for creating multiple-treatment batches are described.

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 evaporates and diffuses into the air stream to create a humidified air stream. A diffusion tower including at least one plenum can be used to create and transfer the humidified air stream. At least one condenser, such as a direct contact condenser, condenses the humidified air stream, wherein purified water is produced. Waste heat from a power plant can be used to provide the heated water stream and power plants can use the waste heat generated to inexpensively provide purified water.

An apparatus for purifying water, such as for desalinization, includes a source of a heated air stream, the heated air stream having a temperature above an ambient temperature. A diffusion tower having high surface area material therein receives a water stream including at least one impurity and creates at least one region having thin films of water therein from the water stream. The heated air stream is directed over the thin films of water to create a humidified air stream that is at least substantially saturated. At least one direct contact condenser is in fluid communication with the humidified air stream for condensing the humidified air stream, thus producing purified water. A power plant can include the apparatus for purifying water, where energy to heat the air stream is provided by low pressure condensing steam.

The present invention relates to a process for producing high purity lithium hydroxide monohydrate, comprising following steps: concentrating a lithium containing brine; purifying the brine to remove or to reduce the concentrations of ions other than lithium; adjusting the pH of the brine to about 10.5 to 11 to further remove cations other than lithium, if necessary; neutralizing the brine with acid; purifying the brine to reduce the total concentration of calcium and magnesium to less than 150 ppb via ion exchange; electrolyzing the brine to generate a lithium hydroxide solution containing less than 150 ppb total calcium and magnesium, with chlorine and hydrogen gas as byproducts; producing hydrochloric acid via combustion of the chlorine gas with excess hydrogen and subsequent scrubbing of the resultant gas stream with purified water, if elected to do so; and concentrating and crystallizing the lithium hydroxide solution to produce lithium hydroxide monohydrate crystals.

Sodium chloride and purified water are recovered by treating salt water that contains sodium chloride with an integrated reverse osmosis and electrodialysis system, which includes an efficiency-enhancing feature that is one or more of the following: the use of univalent anion and univalent cation selective membranes in the electrodialysis unit; the addition of a nanofiltration unit to process the diluate from the electrodialysis unit; or operation of the electrodialysis unit at an elevated pressure. Magnesium and bromine can optionally be produced when the salt water contains these materials.

A collagen device is prepared by mixing collagen with purified water for a period of time sufficient to form a mixture. The pH of the mixture is adjusted to a pH level sufficient to substantially solubilize the collagen. A first predetermined amount of the mixture is placed into a container. The mixture is subject to a lyophilizing process and formed into a collagen device. The collagen device is also cross-linked. The collagen device has a plurality of pores wherein a majority of the pores have a diameter of less than 10 μm. To use the collagen device as an implant to replace, reinforce or strengthen bodily tissue, or to act as an adhesion barrier, the collagen device is placed in contact with bodily tissue and that contact is maintained until the collagen device is substantially resorbed within the bodily tissue.

A process for the production of purified water and hydrocarbons comprising at least one stage of separation of the water and hydrocarbons formed during a Fischer-Tropsch synthesis, at least one stage of purification of the separated water by bringing it into contact with at least one adsorbent selected from the group consisting of: the active carbons, clays which are hydrophobic or rendered hydrophobic, and zeolites which are hydrophobic or rendered hydrophobic. This process may optionally include a stripping stage before the adsorption step.

A process is provided to produce water that will meet the specifications of the United States Pharmacopeia Inc. for Purified Water and Water for Injection, and water for dialysis as circumscribed by the American Association for Advancement of Medical Instrumentation (AAMI). The system has no storage tanks where stagnant water will be fouled by biofilm colonizing the tank surface. Water is circulated throughout the purification system and drawn as required, on demand. The water is purified and used immediately or recycled and repurified to ensure quality. Sanitation of the purification system, maintaining microbiological purity and cleaning is done by controlling the pH so that it is normally acidic by maintaining a high carbon dioxide concentration in solution, the carbon dioxide being allowed to pass into the permeate from a reverse osmosis membrane assembly used to purify the water.

The invention relates to a membrane and evaporation crystallization integrated process with zero discharge of high-salinity industrial wastewater. The process is as below: carrying out ultrafiltration pretreatment on industrial wastewater and sending the wastewater to a reverse osmosis process through a high-pressure pump; reusing lateral infiltration water; conducting electrodialysis treatment on a concentrate subjected to several times of filtration; evaporating and crystallizing the materials obtained from electrodialysis concentration to obtain salt slurry and water; carry outing posttreatment on the salt slurry; and reusing condensed water. The process provided by the invention couples membrane and evaporation crystallization, not only can recover high quality purified water from industrial wastewater with high salinity but also can realize zero discharge of wastewater with high salinity, and has the characteristics of low energy consumption, low production cost and advanced process.

A composition comprising purified water using ozonation, ionization, or distillation or any combination thereof wherein alcohol may be substituted for, or combined with water at least one emollient including but not limited to chitosan, and aloe vera gel, individually or in any combination; an oil component with spf boosting agents including but not limited to; ethyl macadamiate, non-toxic silicone oil and essential oils, butter milk, waxes impregnated with inorganic sun-block or sunscreen agent and organic/inorganic micronized particles, wood powder and bentonite clay, keratin, either individually or in any combination; at least one inorganic sun-block or sunscreen agent including any metal oxide, glass microsphere, silica and silica compound, and optionally metal oxide pigments with particles that are micronized, submicronized, nanoparticle sized, or otherwise individually or in any combination that can be homogenized in either a water phase, a water-aloe phase, an oil phase or any phase of said composition; at least one emulsifier wherein said emulsifier includes but is not limited to a phospholipid and/or liposome or an aloe vera gel or an ester of coconut oil individually or in any combination, for emulsifying the water, water-aloe, or oil phase in combination with an homogenizer; where any of components are preferably mixed with an homogenizer and where an appropriate thickening agent including but not limited to xanthan gum, carageenan, either individually or in any combination is added as required.

The present invention provides for the electrochemical generation of ozone for use in "point-of-use" applications. The electrochemical ozone generators or systems of the present invention may be used to provide disinfected water, ozone-containing water, and/or ozone gas. Disinfected water may be produced by introducing ozone gas into a potable or purified water source for the purpose of disinfecting or controlling the microorganisms in the water source. Ozonated water or ozone gas may be produced and provided for various anti-microbial and cleansing applications of the consumer, such as washing food, clothing, dishes, countertops, toys, sinks, bathroom surfaces, and the like. Furthermore, the ozone generator may be used to deliver a stream of ozone-containing water for the purpose of commercial or residential point-of-use washing, disinfecting, and sterilizing medical instruments and medical equipment. For example, the ozone-containing water may be used directly or used as a concentrated sterilant for the washing, disinfecting, and sterilizing of medical instruments or equipment. Ozone gas may also be used in many of the foregoing examples, as well as in the deodorization of air or various other applications. The invention allows the electrochemical ozone generator to operate in a nearly or entirely passive manner with simplicity of design.

A desalination plant for treating a sea water or brackish water feed is provided. The desalination plant includes a first treatment section to effectively remove scaling species, the first treatment section including nanofiltration section, the nanofiltration section including at least two stages and at least two passes; and a reverse osmosis section that operates at high recovery to produce a purified permeate stream and a selectively NaCl salt-enriched reject stream as a saline output.

The invention discloses a method for extracting cannabidiol from industrial hemp floral leaves. The method comprises the following steps: grinding and drying floral leaves of industrial hemp, thereby obtaining medicinal powder; extracting the medicinal powder by adopting 30-100v% of ethanol, thereby obtaining extracting solution; concentrating the extracting solution to obtain extract; performing water precipitation on the extract, removing the impurities, thereby obtaining water precipitation solution; centrifuging the water precipitation solution, adding 10-100v% of ethanol into the obtained precipitate, dissolving to obtain an alcoholic solution of the precipitate; performing column chromatography on the alcoholic solution of the precipitate; concentrating the eluent obtained by eluting after column chromatography, adding ethanol to perform supersaturation dissolving, thereby obtaining a crystal; adding the crystal into purified water or ethanol for washing, thereby obtaining a primary product; uniformly mixing the primary product by using the purified water, drying, thereby obtaining the cannabidiol. According to the method disclosed by the invention, the highly safe ethanol serves as a solvent, so that the purity of the cannabidiol in the finished product is improved, a psychotoxic component, namely tetrahydrocannabinol, is removed, the product safety is improved, and the method is suitable for industrial production.

This invention relates to a “high lower alcohol content” (>40% v/v of a C_1-4 alcohol) liquid composition able to be dispensed as a stable foam with the use of non-propellant foam dispensing devices from non-pressurized containers. The liquid compositions comprise a C_1-4 alcohol, (>40% v/v), a silicone-based surfactant of at least 0.001% by weight for foaming to prepare a foamable composition, 0-10% w/w of additional minor components added to obtain the desired performance (a foamable composition), and the balance being purified water. The compositions may include emulsifier-emollients and mosturizers, secondary surfactants, foam stabilizers, fragrances, antimicrobial agents, other type of medicinal ingredients, and the like ingredients or additives or combinations thereof commonly added to alcohol gels or foams, aerosol compositions or to toiletries, cosmetics, pharmaceuticals and the like.

A water purification system having a porous anode electrode (21) and a porous cathode electrode (20), each of which is made of graphite, at least one metal oxide, and an ion-exchange, cross-linked, polarizable polymer, and optionally comprises microchannels. Disposed between the electrodes is a non-electron conductive, fluid permeable separator element (22), whereby wastewater is able to flow from one electrode to the other electrode. The electrodes and separator may be disposed within a housing (23) having a wastewater inlet opening (24), and exhaust waste outlet opening (26) and a purified water outlet opening (25). In this way, components of the system are easily replaced should the need arise.

A compact portable modular wastewater treatment system which integrates several processing technologies to provide a substantially purified water source. A wastewater stream is sent through an initial filtration step. The filtered wastewater is then subjected to electrocoagulation and then further filtered. The resulting stream containing substantially only organics is then treated in an advanced oxidation process which can include passing an electrical current through the water during the oxidation process. The partially treated water is then passed through ion-exchange columns to polish ammonium and other contaminants. The ion-exchange columns are cycled through regeneration cycles to provide continuous ion-exchange medium. The ammonium rich brine solution used in regeneration is subjected to an ammonium destruct process and then reused in regenerating ion-exchange columns. The water can then be sent through a final disinfection oxidation process to destroy or inactivate pathogens and/or remove any remaining colorants or odor to provide a water source suitable for almost any use.

A closed loop water purification system comprising a feed water line (42) to supply feed water, a high pressure feed pump (62), a filter assembly (66) having an inlet supplied by the high pressure feed pump, a distribution line (68) and a reject water line (70), the reject line returning reject water from the filter assembly to the feed water line, the distribution line supplying at least one purified water take off point (86) and returning to a junction (50) in the feed water line upstream of the high pressure feed pump. The reject water line is connected to the junction in the feed water line upstream of the high pressure feed pump. A first backflow prevention device (48) is on the feed water line upstream of the junction. A second backflow prevention device (100) is on the distribution line upstream of the junction and a third backflow prevention device (80) is on the reject water line upstream of the junction. A heater system (56) is in one of the distribution line, the reject line or the feed water line.

A water purifying apparatus in which a filter unit is easily attached to and detached from a connection unit. The water purifying apparatus includes a filter unit for allowing water to be circulated therein to filter out foreign substances from the water; and a connection unit connected to the filter unit for transmitting external water to the filter unit and then transmitting the purified water to the outside. The connection unit includes an outer case having a cylindrical structure, one end of which is closed and the other end of which is opened; an inner case having a cylindrical structure, one end of which is closed and the other end of which is opened; and sealing members installed between the inner surface of the closed end of the outer case and the outer surface of the closed end of the inner case.

The active sludge-biomembrane compounding integral sewage treating method includes the first leading the sewage to be treated to the anoxic area through stirring for mixing sewage to be treated and active sludge, the subsequent leading the sewage to aerobic area with stuffing for aeration treatment with combined active sludge and biomembrane, and final leading the sewage to the precipitation area for natural deposition to separate sludge and water, leading out purified water, reflowing the mixed sludge liquid to the anoxic area and draining the residual sludge. The present invention also relates to the corresponding sewage treating apparatus. The present invention has the advantages of high treating capacity, resistance to impact load, simple operation, etc. and is especially suitable for use in medium and small towns.