Class / Patent application number | Description | Number of patent applications / Date published |
210669000 | Prior to ion exchange or sorption | 39 |
20080296229 | Liquid treatment method and apparatus - The liquid treatment apparatus includes a raw water tank | 12-04-2008 |
20090032472 | Systems and methods for removal of heavy metal contaminants from fluids - A system for use in the removal of heavy metal contaminants from fluid is provided. The system includes a source from which contaminated fluid may be introduced into the system, a first station for removal by physical separation of a targeted heavy metal contaminant from the flow of fluid, including elemental species of the targeted heavy metal contaminant, and a second station positioned downstream of the first station and in fluid communication therewith for adsorptive separation of the targeted heavy metal contaminant from the fluid flow, including additional amount of the elemental species along with the other species of the targeted heavy metal contaminant. A method for removing heavy metal contaminants from fluid is also provided. | 02-05-2009 |
20090057229 | Method and system of destruction of volatile compounds in wastewater - The invention proposes a method of destruction of volatile organic and inorganic compounds in wastewater, this method includes following stages: stripping the aforementioned volatile compounds in a stripping-chemisorption column; preliminary heating the gaseous medium containing these volatile compounds in a first heat regenerator; thermal, flare or thermo-catalytic oxidation of the volatile compounds in circulating gaseous medium; cooling the gaseous medium in a second heat regenerator; chemisorption of acidic gases from the gaseous medium in the stripping-chemisorption column with stripping at the same time additional amount of the volatile compounds from the wastewater. After specific period, direction of the gaseous medium flow is alternated. The proposed method can be executed at elevated temperature. The invention includes as well systems realizing the proposed method. | 03-05-2009 |
20090065435 | Modified Biogenic Silica and Method for Purifying a Liquid - Biogenic silica is produced by combusting a biogenic source material such as rice hulls to give rich hull ash (RHA), and the combusted biogenic silica may be subsequently treated to improve the filtration or adsorption properties thereof e.g. by changing the surface charge, the surface tension, the surface area, the average pore size, the pore size distribution, particle size distribution, and/or the permeability thereof. Such biogenic silica is useful to remove a species, such as an impurity, from a fluid to purify the fluid and/or to recover the species therefrom. RHA may be used to remove species including organic, inorganic or microbial particulates, surfactants, metal ions, non-metallic anions, organic compounds, color bodies, odor-producing species, chlorinated compound, pigment, free fatty acids, phospholipids, peroxides, oil and/or grease different from the non-aqueous fluid, algae, bacteria, and combinations thereof. | 03-12-2009 |
20090314718 | Method, Apparatus And Plant For Desalinating Saltwater Using Concentration Difference Energy - A method and apparatus for desalinating saltwater using concentration difference energy is disclosed. In order to desalinate saltwater that is contained within a product chamber, a drive cell is used to generate a drive voltage. The product chamber has a desalination voltage such that when a sufficient voltage is applied to the product chamber, anions and cations migrate out of the product chamber, thereby desalinating the water. The sufficient voltage, which includes the drive voltage and which is equal to or greater than the desalination voltage, is applied to the product chamber, consequently effecting desalination. Beneficially, concentration difference energy can be generated using a concentrated solution, which can be generated using, for example, solar energy. | 12-24-2009 |
20090321362 | SYSTEM FOR GENERATING A DISCRETE LIQUID PHASE IN A CONTINUOUS LIQUID PHASE - The device ( | 12-31-2009 |
20100006508 | Multi-Stage Water Filters - Water filters and methods of filtering fluids (e.g., water) to produce treated water such as potable water. Specifically, water filters comprising activated carbon, fiber composites, or combinations thereof that are operable to remove heavy metals and/or viruses from fluids to produce potable water. The water filters may comprise at least one carbon filter comprising activated carbon particles, and at least one fiber composite filter comprising electropositive metallic fibers having dimensions of between 5 nm and 100 nm. The fiber composite filter may be disposed upstream of the carbon filter, downstream of the carbon filter, or both. | 01-14-2010 |
20100230357 | Method for Removal of Volatile Phosphates From Hydrocarbons - This application relates to processes for selectively removing anionic phosphate molecules from contaminated hydrocarbon oil using the ion exchange activity of acid activated clay. The methods are particularly applicable to the removal of volatile phosphates from hydrocarbons contaminated during fracturing operations. | 09-16-2010 |
20100307977 | REMOVAL OF CYANIDE FROM AQUEOUS STREAMS - This invention relates to a method of removing cyanide in the form of free cyanide (cyanide ions i.e. CN′) and weak acid dissociable cyanide (WAD) from an aqueous stream. WAD is cyanide complexed with metals such as Cu. The method finds particular application in removing cyanide from a tail stream from a carbon in leach (CIL) mining operation. The method of the invention is carried out by contacting an aqueous stream containing cyanide with carbon, under conditions wherein the Eh (oxygen reduction potential (ORP) measured in mV) of the aqueous stream is O or above. Advantageously the pH of the solution is buffered to from 7-9. | 12-09-2010 |
20110100919 | Method for Preparing Platelet Rich Plasma and Concentrates Thereof - A process for separating platelet rich plasma from a blood sample using a platelet rich plasma separator system is disclosed. The system includes an inner wall having a top edge and a central axis that is surrounded by a depth filter having a capacity to receive all of the erythrocytes in the blood sample, where an inner surface of the inner wall has an angle of about 0.2° from the central axis of the inner wall. The process includes spinning the inner cylinder at its central axis at a speed that separates the erythrocytes from plasma and platelets and causes the erythrocytes to collect against an inner surface of the depth filter. The cylinder is continually spun for a sufficient time to allow substantially all of the erythrocytes to flow up the inner surface and over the top edge into the depth filter, leaving platelet enriched plasma (PRP) in the inner cylinder, such that upon discontinuing the spinning, permits the platelet enriched plasma to flow to the bottom of the inner cylinder. | 05-05-2011 |
20110100920 | System, Method and Apparatus for Purifying Biological Fluids Such as Blood and Constituents Thereof - Provided herein is an innovative hemoperfusion system and method including a thermal-fused broad-spectrum biocidal iodinated interactive polymer for the treatment of biological contaminants in body fluids. In one exemplary embodiment, the system and method utilizes a Triosyn® thermal fused broad-spectrum iodinated interactive polymer, included in a hemoperfusion column, for devitalizing high levels of cell-free microorganisms in whole blood and biological fluids in relation with the characterization of blood cells viability and function post-treatment | 05-05-2011 |
20110186520 | IMPREGNATED EXPANDED POLYTETRAFLUOROETHYLENE (ePTFE) TUBING AS A STATIONARY PHASE - A solid-phase extraction device utilizing a section of expanded polytetrafluoroethylene (ePTFE) tubing as the stationary phase is disclosed. The microscopic pores of ePTFE tubing are impregnated with a binding agent having an affinity for a target constituent within a matrix. The matrix is prepared and loaded onto the stationary phase of the system. The target constituent is retained by the stationary phase. The constituent is stripped from the stationary phase with a stripping solution, and collected for further analysis or use. | 08-04-2011 |
20110210072 | Pure Water Manufacturing Method And Pure Water Manufacturing Apparatus - In production of ultrapure water by purifying primary pure water with a secondary pure water manufacturing apparatus and a tertiary pure water manufacturing apparatus, high-purity ultrapure water is produced, wherein generation of hydrogen peroxide is minimized and the concentrations of TOC, DO, and hydrogen peroxide are reduced to the limit. In an ultrapure water manufacturing system, each of the secondary pure water manufacturing apparatus and the tertiary pure water manufacturing apparatus includes an ultraviolet oxidation device and a deionization device, downstream therefrom, by using an ion exchange resin. UV light control is performed in such a way that the hydrogen peroxide concentration results in 1 to 30 μg/L and the TOC concentration results in 1 to 10 μg/L at the outlet of the ultraviolet oxidation apparatus of the secondary pure water manufacturing apparatus and, in addition, the TOC concentration results in 0.1 to 5 μg/L at the outlet of the ultraviolet oxidation apparatus of the tertiary pure water manufacturing apparatus. UV light control is performed in such a way that the TOC concentration results in 1 to 10 μg/L at the outlet of the ultraviolet oxidation apparatus of the secondary pure water manufacturing apparatus and, in addition, the hydrogen peroxide concentration results in 1 to 20 μg/L and the TOC concentration results in 0.1 to 5 μg/L at the outlet of the ultraviolet oxidation apparatus of the tertiary pure water manufacturing apparatus. | 09-01-2011 |
20110220576 | ADSORBENTS - An adsorbent suitable for heavy metal absorption is described, comprising a thiol functionalised support containing a stabilising amount of an alkaline metal reacted with said thiol functionality. The adsorbent may be used to remove heavy metals e.g. mercury and/or arsenic, from wastewater streams such as produced water or flue gas scrubber waters. | 09-15-2011 |
20110266226 | Removing Viruses from Drinking Water - A process of removing viruses from drinking water is disclosed. The process involves filtering drinking water, having a viral contaminant, through a layer of coarse sand; contacting the drinking water with a composite iron matrix; and purifying the drinking water by allowing the composite iron matrix to adsorb the viral contaminant for at least fifteen minutes. The major component of the composite iron matrix is an iron component, which is at least about 68% to about 92% iron by weight. Other components include manganese; cerium; carbon; phosphorous; sulfur; aluminum; silicon; chromium; copper; and zinc. | 11-03-2011 |
20110284469 | Device and Method for Purifying a Liquid - A device for purifying a liquid in particular water is provided with an ozonating unit for treatment of said liquid with ozone and with a storage reservoir hydraulically connected to the ozonation unit. The device is provided with recirculation means for recirculating said treated liquid from said storage reservoir through a recirculation line. The recirculation line is provided with at least one filtration unit. | 11-24-2011 |
20110297616 | SELENIUM REMOVAL METHODS AND SYSTEMS - Described herein is a cost effective means for selenium recovery and refining relying on an impregnated substrate. The substrate is impregnated with selenium and provides a system and method for the environmentally safe discharge of previous selenium-contaminated solutions and an environmentally safe discharge of industrial waste water. | 12-08-2011 |
20120103910 | WATER FILTER - A water filter comprising a closed shell, a filter media and a valve. The closed shell having an inlet and an outlet. The filter media is within the shell and arranged such that water flowing from the inlet to the outlet passes through the filter media. The filter media is arranged to filter hydrocarbons from the water to reduce the proportion of hydrocarbons in water exiting the water filter to below a predetermined threshold. The valve is arranged such that water passing through the water filter passes through the valve. The valve comprises a chamber housing a plug of material arranged to absorb a predetermined proportion of hydrocarbons present in water passing through the valve, the plug of material changes its material properties in response to absorbing hydrocarbons to restrict or block the flow of water through the water filter before exhaustion of the filter media causes the proportion of hydrocarbons in water exiting the water filter to rise above the predetermined threshold. | 05-03-2012 |
20120261345 | RARE EARTH REMOVAL OF HYDRATED AND HYDROXYL SPECIES - This disclosure relates generally to methods and rare earth-containing additives for removing target materials in the form of hydroxides, carbonates, hydrates, or oxyhydroxyls from, a typically aqueous, liquid medium. | 10-18-2012 |
20130026101 | FLUID FILTRATION SYSTEMS AND METHODS THEREOF - Fluid filtration systems and methods thereof to filter fluid in a first directional mode and a second directional mode are disclosed. Fluid filtration systems and methods thereof include a first directional mode, a second directional mode, and a filter unit. The filter unit includes a filter housing unit and a filter chamber disposed in the filter unit. | 01-31-2013 |
20130032544 | Systems and methods for reducing phosphorous in phosphorous-containing outflows - Systems and methods for removing phosphorous (P) from P-containing wastewater from agricultural and urban outflow sources are disclosed. The system includes at least one water attenuation unit (WAU) fluidly coupled to at least one main filter unit (MFU) that contains P-adsorbing material. A high-flow diverter unit is arranged between the WAU and the MFU and diverts a portion of the flow of influent wastewater at high flow rates. The P-filter system is compact and has a modular construction. The effluent wastewater discharged from the P-filter system has 60% to 90% less phosphorous than the influent wastewater. | 02-07-2013 |
20130180924 | SYSTEMS AND METHODS FOR TREATING WASTEWATER - A method of treating wastewater includes treating the wastewater with an additive to generate a treated wastewater, filtering the treated wastewater through a filter system to substantially completely remove residual particulate material and generate filtered wastewater, and processing the filtered wastewater with an ion exchange media to adsorb soluble metals from the filtered wastewater. | 07-18-2013 |
20130341280 | DEEP PURIFICATION METHOD FOR REMOVING TRACE THALLIUM IN WATER BY USING POLYMER-BASED NANOSIZED MANGANESE OXIDE - A deep purification method for removing trace thallium in water by using polymer-based nanosized manganese oxide is disclosed. This method comprising the following steps: adjusting the pH value of the water polluted with trace thallium to 5-8.5 and filtering it, then channeling the water so treated through a packed tower of filtering bed packed with polymer-based nanosized manganese oxide so that the thallium in water can be selectively adsorbed upon the nanocomposite material, stopping the adsorption process when the thallium in water reaches the leak point, and then using mixed solution of HCl—Ca(NO | 12-26-2013 |
20140021138 | Filtration System - A filtration system and methods for using same are disclosed. The filtration system can include a frame, and a plurality of filters coupled to the frame and coupled to each other in series. A pump can provide a pressure differential that causes fluid to flow through the filters in series. The first filter can be provided as a pre-filter, and one or more additional filters can include pleated, calendared, micro-fiber filters. Another filter can be a percentage removal nano-filter that is adapted to remove sub-micron particles from the fluid. The nano-filter can include three pleated filter layers. Each pleated filter layer can be oriented approximately concentrically about a common longitudinal axis. | 01-23-2014 |
20140102986 | METHOD AND APPARATUS FOR PERFORMING SURFACE FILTRATION FOR WASTEWATER MERCURY REMOVAL - A method and treatment unit for removing particulate mercury from aqueous streams such as wastewater streams from hydrocarbon processing is disclosed. Mercury solids are removed by means of a surface filter configured in the shape of a bag. The separated solid mercury can be thickened and dewatered by removing the spent filter bag from service and allowing the water to drain and/or evaporate. The dewatered solids can then be disposed of together with the spent bag to an approved solid waste disposal facility. Coagulants, flocculants, and mercury precipitants can be injected upstream of the filter bag if required to increase removal efficiency by precipitating dissolved ionic mercury and increasing the particle size of the mercury solids. Following bag filtration, activated carbon or an alternative technology (e.g., mercury specific ion exchange resin or adsorbent) can be applied to remove any trace concentrations of dissolved elemental and organic forms of mercury if required based on local discharge requirements. | 04-17-2014 |
20140116949 | ADSORBENT COMPOSITION BY A GREEN PROCESS AND A PROCESS FOR TOXIC METAL ION REMOVAL - An adsorbent composition of a carrier coated with nanoparticles of zerovalent iron (“NZVI”) is disclosed. The NZVI are synthesized in situ using a tannin extract. Methods of making the adsorbent composition comprise providing a liquid stream; dispersing iron salts in the liquid stream to form an iron salt solution; adding a carrier to the iron salt solution to form a prepared stream; adding a tannin extract to the prepared stream to form a reaction stream; and forming the adsorbent composition in the reaction stream. Methods of reducing toxic metal ions in an aqueous stream are also disclosed. The methods comprise providing said aqueous stream; providing an adsorbent composition having a carrier coated with in situ nanoparticles of zerovalent iron (“NZVI”) therein; and contacting the aqueous stream with the adsorbent composition. | 05-01-2014 |
20140158628 | Wastewater Treatment Apparatus and Method - A clinical analyser wastewater treatment apparatus is disclosed including a carbonator section. Preferably there is also an anodic oxidation section and a UV oxidation section, as well as a heavy metal removal section. The anodic oxidation section may include a conductive diamond anode. The apparatus may include a measurement device downstream of the carbonator section and a control system to control the operation of the carbonator. The measurement device is preferably a pH sensor. | 06-12-2014 |
20140197107 | METHOD OF PURIFYING NUCLEIC ACIDS, METHOD OF EXTRACTING NUCLEIC ACIDS AND KIT FOR PURIFYING NUCLEIC ACIDS - [Object] To provide a method of purifying nucleic acids where the operation is simple and the nucleic acids can be extracted in a short time with high efficiency. | 07-17-2014 |
20140305872 | METHOD AND SYSTEM FOR SEPARATING AND DESTROYING SOUR AND ACID GAS - A system adapted to separate a natural gas feed stream into a sweetened gas stream and at least one gaseous waste stream, and to discharge, recover or destroy the at least one gaseous waste stream. The system includes an acid gas separation subsystem adapted to separate the natural gas feed stream into the sweetened gas stream and a first portion of the at least one gaseous waste stream, a destruction subsystem adapted to incinerate the first portion of the at least one gaseous waste stream to form a flue gas, and a scrubber reactor subsystem adapted to receive a water stream and/or an oxygen containing air stream, and to remove at least one portion of the flue gas using the water stream to form a vent gas stream and a wastewater stream, wherein the vent gas is exhausted to the atmosphere. | 10-16-2014 |
20150021270 | Pollution Containment and/or Filtration - Embodiments disclosed here include a buoyant filtration system and method including a buoyant inflatable segmented rim encircling a void and attached to a submersible bag. Some embodiments include the buoyant inflatable rim segments with an inflation/deflation valve, ballast attachment, a hose and pump to remove liquid from the void. Some embodiments include at least two filters, connected to the hose. | 01-22-2015 |
20150297821 | Therapeutic Compositions for Viral-Associated Disease States and Methods of Making and Using Same - A method comprising obtaining a bodily fluid from a subject; contacting the bodily fluid with an adsorbent material comprising a synthetic carbon particle (SCP) to produce a first filtrate having a level of disease mediators (y); contacting the first filtrate with an adsorbent material comprising the SCP and an anion exchange resin where the ratio of SCP to anion exchange resin is from about 0.1:100 to 100:0.1 to produce a second filtrate; contacting the second filtrate with an adsorbent material comprising the SCP and a cation exchange resin where the ratio of SCP to cation exchange resin is from about 1:100 to produce a third filtrate; and administering the third filtrate to the subject. | 10-22-2015 |
20160016818 | SELENIUM AND OTHER CONTAMINANTS REMOVAL PROCESS - A system for reducing a level of metallic contaminants from an aqueous stream is described, including at least one of an aluminum oxide sorption media and an ion exchange media (media | 01-21-2016 |
20160096746 | BIOCHAR TREATMENT OF CONTAMINATED WATER - The present disclosure relates generally to the treatment of water using biochar. More specifically, the treatment of flowback water from drilling operations such as hydraulic fracturing or the treatment of tailing water from tar sands production. Such treatment results in the reduction of various constituents such as metal ions, organic compounds and various metals to provide recycled water suitable for reuse or discharge. | 04-07-2016 |
20160145134 | SYSTEM AND METHOD FOR TREATING CONTAMINATED WASTEWATER - A process for treating contaminated wastewater that includes flowing the contaminated wastewater into at least one pre-pond solids filter tank comprising sand; flowing the contaminated wastewater from at least one pre-pond solids filter tank into at least one sedimentation pond; flowing the contaminated wastewater from the at least one sedimentation pond into at least one filter tank including sand and a mixture of sand and zero-valent iron; and discharging treated wastewater from the at least one filter tank. | 05-26-2016 |
20160152493 | WASTEWATER TREATMENT SYSTEM AND METHOD | 06-02-2016 |
20160185637 | PROCESS FOR INDUSTRIAL PRODUCTION OF SEA WATER BASICALLY SUITABLE FOR FOOD USE - A process for the industrial production of sea water (M | 06-30-2016 |
20160194221 | SYSTEM AND METHOD FOR REMOVING SULFATES FROM WATER | 07-07-2016 |
20160194229 | POLY-MAGNETIC FILTER DEVICE FOR HOT WATER HEATERS AND GAS WATER HEATERS | 07-07-2016 |
20170232183 | Therapeutic Compositions for Viral-Associated Disease States and Methods of Making and Using Same | 08-17-2017 |