Class / Patent application number | Description | Number of patent applications / Date published |
210665000 | By making an insoluble substance or accreting suspended constituents | 85 |
20080277348 | Liquid Exchange Method, Ingredient Extraction Method Using the Same, Composite Container and Autoanalyzer - A liquid exchange method of exchanging liquids present around a magnetic substance is provided. The method serves to prevent a remaining liquid from transferring to a next step and a loss of the magnetic substance. Even when the liquid exchange method is applied to an autoanalyzer, the device structure will not be complicated. A vessel | 11-13-2008 |
20080296228 | Wastewater Treatment Method Comprising Decantation and Fine Screening Stages and Device for Carrying Out Said Method - A method for removing helminth egg and other suspended solids from a wastewater stream includes directing the wastewater to a ballasted flocculation system and adding a coagulation agent, flocculation agent and a ballast into the wastewater. Sludge is settled from the wastewater in a settling tank at a rate of at least 10 meters per hour. The method further includes removing helminth egg by filtering the effluent through a fine screen having a mesh diameter of approximately 5 micrometers to approximately 25 micrometers. After passing through the fine screen, the filtered effluent has less than one helminth egg per liter. | 12-04-2008 |
20080314836 | METHODS AND DEVICES FOR DYNAMIC FILTRATION OF PHARMACEUTICAL PRODUCTS - A device for dynamic filtration of a pharmaceutical product is provided. The device includes a resin configured to selectively retain one or more components from a mixture having the pharmaceutical product, where the resin is configured to be activated by a medium of the mixture. The device further includes at least one positioning material disposed adjacent to the resin, where the positioning material is configured to provide mechanical support to the resin to at least partially retain the resin in position. In certain embodiments, the device does not require conditioning immediately prior to filtration. | 12-25-2008 |
20090026141 | EFFLUENT TREATMENT PROCESS - A process for the treatment of effluent, particularly acid mine drainage, is provided which includes the steps of a. neutralising acid; b. removing cations by ion exchange using a cation resin; c. regenerating the cation resin; d. treating the eluates of the cation ion exchange step; e. adsorbing anions from the effluent of the cation removal step using an anion exchange resin; and f. regenerating the anion exchange resin. | 01-29-2009 |
20090039026 | Separation method - A method of separating at least one phycobilino-based pigment from a sample containing a plurality of phycobilin-based pigments is provided. The method is capable of separating a specific phycobilin-based pigment with high purity by a simple operation. | 02-12-2009 |
20090173695 | Method and apparatus for removal of gas bubbles from blood - A system is disclosed for removing gas bubbles from blood during circulatory assist procedures. Such bubbles are generated, along with particulate matter, in an extracorporeal circulatory bypass system by the pump, oxygenator and other components. Filters are used in the line to remove particulates and bubbles from the blood before they are pumped back to the patient but current filters are inefficient at removing small bubbles and debris that can cause neurological defects and renal and other organ failures in the patient. An active filter apparatus and method is disclosed that forces the bubbles to the center of the system where they are removed from the blood before the blood exits the filter. The filter comprises an axially elongate cylindrical shell with a blood inlet, a blood outlet and a gas outlet. A motor driven impeller spins the blood within the shell and forces the gas toward the center by centripetal force, utilizing the buoyancy effects of the bubbles in blood, whereby the bubbles can be bled off at the center of the filter element. | 07-09-2009 |
20090194484 | Oil Filters Containing Strong Base and Methods of Their Use - Novel filter elements for sequestering acids from oil or fuel, the strong base floes that comprise the filter elements, and methods of their preparation and use are disclosed. The filter elements comprise a mechanically linked interlocking fiber matrix interspersed with strong base particle floes wherein the strong base particles constitute at least 30% by weight of the filter element. Certain filter elements may be useful for sequestering acids or neutralized acids in certain oils or fuels, for example, the acids originating in the combustion and lubrication system of an internal combustion engine or those contained in oils in an oil circulation system. Other filter elements may be useful for reducing oxidation of an oil. | 08-06-2009 |
20090261041 | Composition for Filtering and Removing Particles and/or Constituents from a Fluid - Filter-aid materials are disclosed herein, and processes, systems, and methods using such filter-aid materials for filtering and removing particles and/or constituents from a fluid, wherein the filter-aid material comprises at least one filterable composite adsorbent comprising at least one adsorbent component formed in-situ on at least one filtration component. Further disclosed herein are filter-aid materials and processes, systems, and methods using such filter-aid materials for filtering and removing particles and/or constituents from a fluid, wherein the filter-aid material comprises at least one filterable composite adsorbent comprising at least one adsorbent component formed in-situ on at least one filtration component, and wherein the filter-aid material further comprises an at least one additional filtration component mixed with the at least one filterable composite adsorbent. | 10-22-2009 |
20090277840 | Process for treating animal husbandry effluent slurry by pre-treatment and electroflotation - Described is a process for treating an animal husbandry effluent slurry, such as hog manure, containing suspended solid particles. The process includes a) providing a liquid portion of the effluent, b) diluting the liquid to a Newtonian fluid, c) assuring the pH is under 10, d) adding to the fluid i) a soluble salt of alkaline earth metal (e.g. CaCl | 11-12-2009 |
20090294365 | WATER TREATMENT SYSTEM AND METHOD OF USING SAME - A water treatment method is provided for helping to partially or completely remove sodium and methane gas from water. In the method, water is combined with a reactant that is formulated to combine with the sodium in the water and form a compound. The water and compound are then passed through a bed of media for helping to separate the compound from the water. The method also includes aerating the water to release gases contained therein by breaking the water into microdroplets by passing it through a screen. Additionally, the method may include a step wherein the water is passed through an acidic resin for facilitating a cation exchange where additional sodium is removed. A water treatment apparatus for performing the method is also provided. | 12-03-2009 |
20100025332 | Titanium composition for water treatment and method - A personally portable water purification compound prepared in unit dosage form such as tablets, packages and the like and having titanium dioxide (TiO | 02-04-2010 |
20100044315 | PHOSPHORUS REMOVAL SYSTEM AND PROCESS - A phosphorus removal system is operable to remove phosphorus from an influent. The system includes a first section receiving the influent and discharging a first flow. A first coagulant inlet is positioned upstream of the first section and is in fluid communication with the influent to introduce a first coagulant selected to precipitate phosphorus. A second section receives the first flow and discharges a second flow, and a third section receives the second flow and discharges an effluent. A second coagulant inlet is positioned downstream of the first section and upstream of the third section to introduce a second coagulant selected to precipitate phosphorus. | 02-25-2010 |
20100051555 | Process of removal of arsenic from water - An arsenic removal process where arsenic 3 is oxidized to arsenic 5 where the water is passed upflow through a bed of manganese dioxide (MnO | 03-04-2010 |
20100065502 | Method and Apparatus for Removing Metal From Waste Water - The present invention has an object to provide a method and an apparatus for removing metals in waste water, such as thallium contained in waste water generated by rinsing waste containing chlorine, ash obtained by burning garbage, fly ash, etc. and reduces the concentration of metals in the waste water to a discharge standard, and the present invention provides a method for removing metals comprising applying direct-current electricity by an electrolyzer | 03-18-2010 |
20100096331 | Filtration of a hydrocarbon from a fluid - An apparatus for, method of, and system for treatment of industrial waste water and/or marine vessel bilge waste water before discharge into rivers, lakes, streams and oceans, said waste water having hydrocarbon and non-hydrocarbon liquid chemical emulsions containing organics and fine suspended particulate matter, said treatment utilizing a hydrocarbon sorbing media together with filter structural elements to first coalesce then bifurcate the hydrocarbon elements from the non-hydrocarbon elements in the emulsion, then the remaining liquid entering the second stage of filtration wherein a positively charged nano-fiber material removes the remaining organics and other fine particulate in the submicron sized range, providing a highly clarified and oil free effluent at high flow rates and with substantially reduced filter system maintenance. The apparatus, method and system may further contain a third stage utilizing another layer of hydrocarbon sorbing materials. It may be combined into a larger oily water separation system. | 04-22-2010 |
20100187178 | Process for removing and sequestering contaminants from aqueous streams - Contaminants, including arsenic, are removed from water and other aqueous feeds preferably by (1) treating the feed with a compound containing a rare earth (e.g., cerium in the +4 oxidation state, preferably cerium dioxide), to oxidize contaminants in the +3 oxidation state to arsenic in the +5 oxidation state and (2) removing the contaminants in the +5 oxidation state from the aqueous phase, normally by contacting the treated feed with a rare earth-containing precipitating agent. | 07-29-2010 |
20100243570 | METHOD, INSTALLATION AND SYSTEM FOR MEASURING AND/OR TREATING CONTAMINATING COMPOUNDS DISSOLVED IN A LIQUID - The present invention relates to a method, device and system for measuring and/or treating contaminating components dissolved in a liquid in a liquid flow, such as in a water treatment, the method comprising the steps of: —carrying at least a part of the liquid from the liquid flow with contaminating components present therein into a container or a conduit; —causing precipitation of at least a part of the dissolved contaminating components, wherein solid particles are formed, and/or treating the quantity of process liquid; optionally followed by: —measuring the presence and/or the quantity of solid particles formed. | 09-30-2010 |
20100264088 | APPARATUS AND METHOD FOR SEPARATION OF PHASES IN A MULTIPHASE FLOW - A device is disclosed for the separation of liquid-liquid phase and/or a liquid-gas phase where one or more of the phases is suspended in water and has a bubble/drop/particle size in the sub micron and micron range, and/or fine particular organic or inorganic material is present in one or more of the phases. There is also disclosed a method and use for the device. | 10-21-2010 |
20100294722 | BORON ADSORBENT AND BORON REMOVAL METHOD UTILIZING SUGAR AMIDE DERIVATIVE - Disclosed is a boron adsorbent having an excellent adsorbing ability against boron contained in a solution, which is inexpensive and has high general versatility. Also disclosed is a boron removal method which can remove boron efficiently in a simple manner. An amide derivative represented by the general formula (1) is added to a boron-containing water under alkaline conditions to cause the adsorption of boron to the amide derivative. Then, a cation source having two or more valencies is added to the water to cause the aggregation of the amide body. The aggregated amide body is removed from the water. In the general formula (1), m represents 1 or 2; X represents —CH | 11-25-2010 |
20100300974 | Continuous Batch Reactor, System, and Process for Treatment of Metal-Contaminated Fluids - A fluid treatment device, system, and process are described that provide a filtered, metal-depleted (treated) fluid. The system includes two pairs of tanks that are piped and valved to allow one pair to fill/react while the other pair decants/discharges, which provides a continuous flow of metal-depleted (treated) fluid. Power requirements are minimal since fluid is pumped at a low head pressure. The design has applications in the potable water, industrial, mining, chemical and environmental sectors. | 12-02-2010 |
20110163037 | Filtration of a hydrocarbon from a fluid - An apparatus, method, and system for treatment of industrial waste water and/or marine vessel bilge water before discharge into waterways, said waste water having hydrocarbon, and synthetic oils, chemical or surfactant based hydrocarbon emulsions, and water soluble hydrocarbons, containing hydrocarbon coated organics and fine suspended particulate matter, said treatment utilizing a hydrocarbon sorbing pre-filter media together with filter structural elements to first remove hydrocarbon contaminated organics and particulate, coalesce then bifurcate and adsorb heavier hydrocarbon elements; the remaining liquid entering the second stage of filtration wherein a cryogenically pulverized recycled tire powder material removes the remaining hydrocarbons, synthetic oils, hydrocarbon emulsions, and water soluble hydrocarbons, providing a highly clarified and oil free effluent at high flow rates and with substantially reduced filter system maintenance. Said invention may further contain a third stage utilizing another layer of hydrocarbon sorbing materials. It may be combined into an oily water separation system. | 07-07-2011 |
20110180482 | METHODS AND DEVICES FOR DYNAMIC FILTRATION OF PHARMACEUTICAL PRODUCTS - A device for dynamic filtration of a pharmaceutical product is provided. The device includes a resin configured to selectively retain one or more components from a mixture having the pharmaceutical product, where the resin is configured to be activated by a medium of the mixture. The device further includes at least one positioning material disposed adjacent to the resin, where the positioning material is configured to provide mechanical support to the resin to at least partially retain the resin in position. In certain embodiments, the device does not require conditioning immediately prior to filtration. | 07-28-2011 |
20120024794 | Method and system for treating water used for industrial purposes - A low cost method and system for treating water, which will be used in an industrial process, is provided. A system of the invention generally includes at least one containing means, at least one coordination means, at least one chemical application means, at least one mobile suction means, and at least one filtration means. The coordination means can control the necessary processes depending on the system needs (e.g., water quality or purity). The method and system of the invention purifies the water and eliminates suspended solids without the need of filtering the totality of the water volume, but only filtering a small fraction of up to 200 times less than the flow filtered by a conventional water treatment filtration system. | 02-02-2012 |
20120080383 | WASTE TREATMENT PROCESS - A process for treating waste includes reacting a feedstock in a reactor to form an effluent. The feedstock is part of a reaction mixture that includes sulfuric and nitric acid. The effluent is separated into a liquid fraction and a solid fraction. Heavy metals such as arsenic, cadmium, cobalt, mercury, molybdenum, and/or selenium are removed from the liquid fraction to form a cleaned liquid fraction. The reaction mixture, excluding solids, includes no more than 7.5 wt % of the total of the first oxidizing acid and the nitric acid. | 04-05-2012 |
20120103909 | PARTICULATE CERIUM DIOXIDE AND AN IN SITU METHOD FOR MAKING AND USING THE SAME - This disclosure relates generally to methods and compositions for removing contaminants from streams and is particularly concerned with methods and compositions for removing contaminants from municipal wastewaters, municipal drinking waters and recreational waters. The present disclosure is to particulate cerium, more particularly to particulate cerium (IV) formed by an in situ oxidative process and to a method for removing target materials from a target material-containing stream using particulate cerium formed in situ. | 05-03-2012 |
20120175309 | OIL FILTERS CONTAINING STRONG BASE AND METHODS OF THEIR USE - Novel filter elements for sequestering acids from oil or fuel, the strong base flocs that comprise the filter elements, and methods of their preparation and use are disclosed. The filter elements comprise a mechanically linked interlocking fiber matrix interspersed with strong base particle flocs wherein the strong base particles constitute at least 30% by weight of the filter element. Certain filter elements may be useful for sequestering acids or neutralized acids in certain oils or fuels, for example, the acids originating in the combustion and lubrication system of an internal combustion engine or those contained in oils in an oil circulation system. Other filter elements may be useful for reducing oxidation of an oil. | 07-12-2012 |
20120211426 | METHOD AND SYSTEM FOR TREATING A CONTAMINATED FLUID - The present invention provides an integrated method and system for treating a contaminated fluid. The integrated system and method is configured to simultaneously perform multiple functions, for example, transportation, mixing, treatment and separation. The contaminated fluid and treating agents are pumped simultaneously into a processing tank and vigorously mixed by at least one pump-mixer. The at least one pump-mixer is configured to simultaneously perform combined functions such as fluid transportation, rapid and vigorous mixing and treatment. The rapid and vigorous mixing by at least one pump-mixer enhances the processing rates considerably. The contaminants and the disaggregated particles undergo treatment as a result of their reactions with the treating agents. The process residuals, usually in the form of sludge, are separated from the treated fluid. The separation system is also configured to simultaneously perform multiple functions. | 08-23-2012 |
20120241381 | Method and apparatus for removal of selenium from water - A method of treating selenium contaminated water to reduce the concentration of selenium in the water to levels below 5 μg/L uses a first stage treatment by an iron co-precipitation process to remove a bulk concentration of selenium from the water, followed by a second stage treatment wherein the water from the first stage is treated by either a hydride generation process or an ion-exchange media, or a combination thereof, to achieve a selenium concentration level below 5 μg/L. | 09-27-2012 |
20120241382 | COMPOSITIONS AND METHODS FOR RETARDING THE FORMATION OF INSOLUBLE BYPRODUCTS IN WATER SOFTENERS - Novel water softening products and methods of treating hard water are provided. The products comprise a chloride-free, organic salt and a chelating agent. The products are useful for regenerating ion exchange material in a water softening system and providing softened water containing both sodium and potassium ions, while avoiding the formation of undesirable precipitates (e.g., low Ksp byproducts). | 09-27-2012 |
20120255912 | Process for Treating Water to be Treated by Clarification Comprising an Adsorption of a Portion of Clarified Water and a Clarification of a Mixture of Adsorbed Clarified Water and Water to be Treated - Process for treating water to be treated by clarification comprising an adsorption of a portion of clarified water and a clarification of a mixture of adsorbed clarified water and water to be treated The invention pertains to a process for treating water to be treated comprising:
| 10-11-2012 |
20130032542 | PERSONAL PORTABLE WATER PURIFICATION DEVICE - The emergency personal portable water purifying apparatus can be used by individuals to purify water that has become contaminated by natural or man-made disasters. The apparatus is lightweight, self-contained, fits on most standard bottlenecks by using an expanding sealing collar integrated into the purifier and needs to extra power supply. The water is forced through the filter by pressure on the sides of the bottle or suction from the mouthpiece. The water purifier has a water inlet with a residue collection area and quick fitting changeable mouthpiece valve on the water outlet. Water is flocculated and large particles, residue and sediments are contained in the particular residue collection area. Water then passes through the micron net to remove remaining particles and is forced through the active carbon chamber via the spiral form to the water outlet. | 02-07-2013 |
20130068694 | OIL FILTERS CONTAINING STRONG BASE AND METHODS OF THEIR USE - Novel filter elements for sequestering acids from oil or fuel, the strong base flocs that comprise the filter elements, and methods of their preparation and use are disclosed. The filter elements comprise a mechanically linked interlocking fiber matrix interspersed with strong base particle flocs wherein the strong base particles constitute at least 30% by weight of the filter element. Certain filter elements may be useful for sequestering acids or neutralized acids in certain oils or fuels, for example, the acids originating in the combustion and lubrication system of an internal combustion engine or those contained in oils in an oil circulation system. Other filter elements may be useful for reducing oxidation of an oil. | 03-21-2013 |
20130153506 | METHOD TO IMPROVE CLARIFICATION PERFORMANCE IN WASTEWATER TREATMENT APPLICATIONS - Disclosed is a cost effective method of clarifying wastewater. The method comprises the steps of providing wastewater and adding a substance to the wastewater. The substance comprises a porous particulate material. The porous particulate material may be perlite, and the substance may additionally comprise a coagulant. | 06-20-2013 |
20130161259 | Method for Continuously Breaking a Water-In-Oil Emulsion and Corresponding Device - A device and method for continuously breaking an initial emulsion of the water-in-oil type includes a first step of mixing the initial emulsion with a superheated washing water so as to obtain an intermediate emulsion of the water-in-oil type that comprises a hydrophilic phase and a hydrophobic phase, and that has a number-average diameter of the droplets less than or equal to 50 μm, and a temperature above 100° C. and below the boiling point of the hydrophilic phase at the pressure of the intermediate emulsion. A second step includes destruction of the intermediate emulsion by a liquid-liquid separator so as to obtain a separated hydrophilic phase and a separated hydrophobic phase. | 06-27-2013 |
20130240450 | METHOD FOR TREATING HIGHLY CONCENTRATED RESIN-DESORPTION LIQUID GENERATED FROM WASTEWATER DEEP PURIFICATION - A method for treating highly concentrated resin-desorption liquid generated from wastewater deep purification, including channeling the highly concentrated desorption liquid generated from anion exchange resin treatment through a nanofiltration membrane, the liquid being separated into nanofiltration permeate that can be reused as the desorption agent and highly concentrated nanofiltration retentate; adding a coagulating agent to the highly concentrated nanofiltration retentate to generate coagulation-precipitation; subjecting the supernatant formed after the coagulation-precipitation process to Fenton oxidation or ozone oxidation; after the reaction, adding to the liquid an alkali solution for further coagulation-precipitation; then channeling the liquid so treated back to the biochemical system of biochemical effluent treatment for further biodegradation is provided. The recycled treatment of the highly concentrated desorption liquid consequently reduces the treatment cost and prevents secondary pollution by realizing innocuous treatment and reclamation of resin-desorption liquid as well as reduction of its total volume. | 09-19-2013 |
20130292336 | METHOD FOR TREATING A VARIETY OF WASTEWATER STREAMS - The present invention is a wastewater treatment method using dried BOF slag and hydrogen peroxide, wherein hydrogen peroxide is oxidized to generate hydroxyl radicals that reacts with soluble metal contaminants in the sludge such that these contaminants can be adsorb on the catalyst particles and/or eliminated from the wastewater stream by separation techniques. The process can use catalytic oxidation for soluble metals removal. In addition, catalytic oxidation can produce a filtered water saturated with Oxygen and higher in pH resulting in enhanced precipitation of soluble metals when softening agents, such as Sodium Carbonate, are added in a subsequent processing step. Another embodiment of the present invention is a method using ferrous sulfate for removing soluble metals in wastewater, followed by Catalytic Oxidation to remove soluble Fe without addition of metal salts, and removing sulfates by adding Barium Carbonate. | 11-07-2013 |
20130319947 | Process and Apparatus for Purifying Water - The invention relates to a process and apparatus that treats waste water, in particular waste water containing surfactants and including grey water, for local reuse. According to the invention, the process comprises a) collecting waste water in a reservoir; b) injecting gas into waste water from the reservoir to form bubbles in the waste water; c) separating the bubbles, and any entrained contaminants, from the waste water; d) drying the separated bubbles and returning any water recovered from the dried bubbles to the waste water undergoing treatment; e) optionally repeating steps b) to d) to achieve the desired purification of the waste water; and f) collecting the purified waste water. The invention provides a robust process and a mechanically simple apparatus that does not require regular replacement of chemicals or filters, yet is capable of treating waste water locally, and in particular grey water for household reuse | 12-05-2013 |
20140048488 | FILTRATION OF A HYDROCARBON FROM A FLUID - An apparatus, method, and system for treatment of industrial waste water and/or marine vessel bilge water before discharge into waterways, said waste water having hydrocarbon, and synthetic oils, chemical or surfactant based hydrocarbon emulsions, and water soluble hydrocarbons, containing hydrocarbon coated organics and fine suspended particulate matter, said treatment utilizing a hydrocarbon sorbing pre-filter media together with filter structural elements to first remove hydrocarbon contaminated organics and particulate, coalesce then bifurcate and adsorb heavier hydrocarbon elements; the remaining liquid entering the second stage of filtration wherein a cryogenically pulverized recycled tire powder material removes the remaining hydrocarbons, synthetic oils, hydrocarbon emulsions, and water soluble hydrocarbons, providing a highly clarified and oil free effluent at high flow rates and with substantially reduced filter system maintenance. Said invention may further contain a third stage utilizing another layer of hydrocarbon sorbing materials. It may be combined into an oily water separation system. | 02-20-2014 |
20140116947 | MIXED HYDROPHILIC/HYDROPHOBIC FIBER MEDIA FOR LIQUID-LIQUID COALESCENCE - An immiscible lipophilic or hydrophilic liquid phase separated respectively from a continuous hydrophilic phase or a lipophilic phase liquid. Fibers having hydrophilic and hydrophobic properties are formed into a filter. The separation mechanism involves capture of small droplets of the immiscible phase, coalescence of the small droplets into larger droplets as the immiscible liquid flows through the fiber filter, and release of the large immiscible droplets from the filter. Regarding separation of a hydrophilic immiscible fluid such as water in a lipophilic continuous fluid such as oil, the hydrophobic fibers cause small water droplets to migrate towards the hydrophilic fibers whereby large droplets form on hydrophilic surface. The large droplets stay on hydrophilic fiber surface for extended periods of time and continue to coalescence until they are so large that they can no longer be maintained by the hydrophilic fibers and are released and drained off of the filter. | 05-01-2014 |
20140263070 | METHODS AND SYSTEMS FOR THE FILTERLESS REDUCTION OF LEUKOCYTES IN A BIOLOGICAL FLUID - Methods and systems for removing leukocytes from a biological fluid are disclosed. The methods and systems include a device that has a magnetic substrate coated with one or more polymeric materials that have an adhesion or adsorption affinity for leukocytes. | 09-18-2014 |
20140346114 | TECHNIQUE FOR REMOVAL OF ORGANICS AND DISSOLVED SOLIDS FROM AQUEOUS MEDIAS VIA SUPERCRITICAL TREATMENT - Flow and product waste water from fracturing can be cleaned and reused utilizing a precipitation methodology incorporating, in part, a super critical reactor | 11-27-2014 |
20150034558 | Three phase elctrocoagulation effluent treatment apparatus and methods - Electrocoagulation effluent treatment apparatus and methods are disclosed, the apparatus including a primary electrocoagulation reactor chamber having treatment electrodes maintained therein and an effluent inlet and treated effluent outlet. An integrated flotation chamber is located above the reaction chamber, a vacuum device connectable with a vacuum source being received in the flotation chamber and including a foam intake and an output. A sludge chamber is defined below and integrated with the primary reaction chamber and has a settled sludge output. | 02-05-2015 |
20150136704 | METHOD AND APPARATUS FOR TREATING WASTEWATER CONTAINING RADIOACTIVE STRONTIUM - Radioactive strontium is efficiently removed from wastewater containing radioactive strontium. In a treatment method for radioactive strontium-containing wastewater, wastewater containing radioactive strontium and a powdery alkali metal titanate are mixed in a stirrer-equipped reaction tank by stirring such that radioactive strontium in the wastewater is adsorbed on the powdery alkali metal titanate, followed by subjecting the powdery alkali metal titanate having radioactive strontium adsorbed thereon to solid-liquid separation. The radiation dose of treated water can be effectively reduced in such a manner that a powder of an alkali metal titanate is directly added to radioactive strontium-containing wastewater and is dispersed therein and therefore radioactive strontium is efficiently removed by adsorption. | 05-21-2015 |
20150353400 | SYSTEM AND METHOD FOR TREATING WASTE WATER BY MEANS OF PASSIVE PHOSPHORUS CAPTURE - The invention relates to a system and a method for treating waste water using a passive phosphorus-capture filter lined with wood activated by the impregnation of a metal in the form of hydroxide, more specifically aluminum hydroxide or iron hydroxide. This system demonstrates phosphorus removal performances which are very closely linked to the release of iron and which support the observation that iron releases follow a cyclical trend. The method according to the invention also clearly demonstrates the cyclical nature of the reduction of phosphorus, directly linked to the same cycle of iron release at the outlet. When the medium is aerobic, it can precipitate the released iron in the form of hydroxide and thereby limit the release of iron into the outflow water and consequently its residual phosphorus. This model thus allows the service life of the system to be extended, while simultaneously taking advantage of the precipitation/solubilisation cycle of the iron observed in the medium under reducing conditions. | 12-10-2015 |
20160046506 | METHOD FOR REMOVING FLUORINATED ORGANIC COMPOUNDS FROM CONTAMINATED FLUIDS, AND ADSORBENT COMPONENT AND ADSORBENT KIT USED THEREFOR - A method may be provided for removing fluorinated organic compounds from contaminated fluids by means of a kit that comprises a first and a second adsorbent component, or only by means of the first adsorbent component alone. The second adsorbent component is a solid adsorbent; the first adsorbent component is a chemical compound that contains a lipophilic group and a hydrophilic group, or contains such a compound in dissolved form, wherein the hydrophilic group contains at least one cationic group and wherein the lipophilic group is selected from alkyl groups that comprise at least one octylene unit, from aryl groups, and from aralkyl groups. The contaminated fluid may be brought in contact with the first adsorbent component, and optionally the fluid is also brought in contact with the second adsorbent component. The adsorbent component(s) may be removed from the fluid together with the adsorbed fluorinated organic compounds. | 02-18-2016 |
20160107902 | SYSTEM AND METHOD FOR THE TREATMENT OF WASTEWATER - A system and method for backwashing a sand filter in a wastewater treatment system. In one aspect, the invention can be a system for backwashing a sand filter comprising: a sand filter configured to remove solids from an untreated wastewater; a container storing chlorine fluidly coupled to the sand filter by a chlorine supply manifold; a flow control mechanism positioned on the chlorine supply manifold between the container and the sand filter, the flow control mechanism alterable between a first position whereby chlorine cannot flow from the container to the sand filter and a second position whereby chlorine flows from the container to the sand filter, the flow control mechanism being biased into the first position; and a processor operably coupled to the flow control mechanism and configured to automatically actuate the flow control mechanism into the second position upon detecting that the sand filter is being backwashed. | 04-21-2016 |
20160137538 | METHODS AND APPARATUS FOR CONTROLLING WATER HARDNESS - The present invention is related to methods, apparatuses, and compositions for controlling water hardness. The methods, apparatuses and compositions also reduce scale formation. The present invention includes substantially water insoluble resin materials. The resin materials may be loaded with a plurality of cations. | 05-19-2016 |
20160167998 | Method for the treatment of water comprising a step of adsorption on ion-exchanging resin and a step of ballasted coagulation/flocculation and of separation, and corresponding plant | 06-16-2016 |
20160200604 | METHOD OF ADVANCED REMOVAL OF PERSISTENT ORGANIC POLLUTANTS AND HEAVY METALS IN WATER BODY | 07-14-2016 |
210666000 | Utilizing organic agent | 20 |
20090008334 | METHOD FOR TREATMENT OF HIGH pH/SILICA BRINES - A method for neutralizing brines that contain high levels of silica accompanied with a high pH. Brine is processed through a reactor in which the pH is lowered and the resultant silica precipitate is adsorbed onto a sacrificial crystal structure. The resultant stream is then processed through a solids removal zone wherein the solids are removed and recovered for reuse. The neutralized solids-free brine is then suitable for down-hole injection in the heavy oil industry or further treatment by common water treatment methods if further adjustment is required for other industries. | 01-08-2009 |
20090211982 | PROCESS FOR TREATING EFFLUENT LIQUID FRACTION FROM POST ANAEROBIC DIGESTION - A process for treating a liquid fraction of effluent wastewater from post anaerobic digestion containing fine solids having a size less than about 25 microns is disclosed. A metal salt flocculant is added to the liquid fraction in an amount ranging from about 50 to 500 ppm in the liquid fraction. The metal salt flocculant is selected from inorganic iron and aluminum flocculent compounds having a +2 or +3 valence. A cationic organic polymer is added to the liquid fraction in an amount ranging from about 10 to about 150 ppm in the liquid fraction. The cationic organic polymer has a molecular weight greater than about 3,000,000 and cationicity in the range form 1.25 mole % to 30 mole %. The metal salt flocculent and the cationic organic polymer produce a separable solid fraction which is recovered. Pre-treatment with a small amount of the cationic organic polymer provides improved results. | 08-27-2009 |
20100025333 | APPARATUS AND PROCESS FOR WATER CONDITIONING - Conditioning processes and equipment for removing hardness from water circulated in a system. A sidestream is routed to a reactor and back. A buffer is added to the circulated water, in some embodiments in a sidestream exiting the reaction chamber, forming soluble metal complexes with metal ions of the type that cause scaling. A conditioner is added to the sidestream water which breaks the soluble metal ion-buffer complexes and precipitates and accumulates the released metal ion as a solid for accumulation and disposal. In some embodiments a polymer is added, a corrosion inhibitor blend is added and/or pre-mixed with the buffer, and a chlorine generator removes sodium chloride from the buffered sidestream, and makes chlorine gas, hydrogen gas, and sodium hydroxide for use in the process or for disposal. | 02-04-2010 |
20100200508 | Perchlorate Ion Trapping Agent - The invention provides a heterocycle-substituted aromatic compound represented by the following Formula (I). In Formula (I), one of R | 08-12-2010 |
20100282683 | SLUDGE CONCENTRATION AND DEHYDRATION METHOD - A sludge concentration and dehydration method is provided, which comprises the following steps: (1) add an organic agent (polyacrylamide) to the sludge for initial conditioning, then concentrate the sludge; (2) add an inorganic agent (a compound containing Fe and Ca) to the sludge for further conditioning, then transport the sludge to a dehydrator for dehydration; (3) dispose the dehydrated sludge correspondingly when it satisfies the requirements for final disposal. | 11-11-2010 |
20110000854 | USE OF A DUAL POLYMER SYSTEM FOR ENHANCED WATER RECOVERY AND IMPROVED SEPARATION OF SUSPENDED SOLIDS AND OTHER SUBSTANCES FROM AN AQUEOUS MEDIA - A method uses anionic and cationic polymers added in, any order or simultaneously, to aqueous media for the removal of substances. The sequential addition of the two biopolymers, anionic xanthan, followed by cationic chitosan, causes the rapid formation of very large and cohesive fibrillar aggregates that may exhibit high solids to liquid ratios and that quickly settle out from the aqueous media. The aqueous media can be easily separated from the large fibrillar aggregates by settling under gravity or by filtration through a porous containment device, such as a synthetic or non-synthetic woven or non-woven fabric including a geotextile fabric or a solid containment device containing a solid mesh screen. | 01-06-2011 |
20110094968 | Flocculant Composition For Dewatering Solids Laden Slurries - Flocculant compositions containing a cellulosic compound, a superabsorbant polymer, and a flocculant, are useful for preventing the formation of an aqueous phase during the shipping of fly ash slurries. | 04-28-2011 |
20120061321 | REMOVAL OF CONTAMINANTS FROM WASTE STREAMS USING POLYMERIC ADDITIVES - Systems and methods are presented for removing an ionic material from a fluid using a capture polymer that sequesters the ionic material and an anchor particle bearing a tethering polymer. The tethering polymer complexes with the capture polymer after the capture polymer has sequestered the ionic material, thereby affixing a complex of capture polymer and ionic material to the anchor particle to form a removable complex. The removable material can be segregated from the fluid via a removal system, thereby removing the ionic material from the fluid. | 03-15-2012 |
20120067824 | SYSTEMS, METHODS, PROCESSES AND APPARATUS FOR REMOVING FINELY DISPERSED PARTICULATE MATTER FROM A FLUID STREAM - Disclosed herein are systems for removing particulate matter from a fluid, comprising a particle functionalized by attachment of at least one activating group or amine functional group, wherein the modified particle complexes with the particulate matter within the fluid to form a removable complex therein. The particulate matter has preferably been contacted, complexed or reacted with a tethering agent. The system is particularly advantageous to removing particulate matter from a tailing solution. | 03-22-2012 |
20120145637 | MAGNETIC EXTRACTANTS, METHOD OF MAKING AND USING THE SAME - A water treatment composition capable of effectively adsorbing pollutants from water is described. The composition includes magnetic extractants, which comprise magnetite nanoparticles containing functional groups. The composition is used to remove from water and aqueous streams oils and other contaminants. A process for removing contaminants from water and apparatus used in the process are also described. | 06-14-2012 |
20130168318 | Method for Treating Water by Ballasted Flocculation Implementing a Natural Flocculent - Method for treating water by ballasted flocculation comprising a step for injecting into said water at least a flocculent, a step for injecting into said water at least one particulate material that is denser than water, and a step for retrieving treated water, characterised in that said ballasted flocculation is performed under agitating at a mean speed gradient between 100 and 1400 s | 07-04-2013 |
20140014586 | TREATMENT OF WASTEWATER - The present invention provides systems and methods for removing an oxidizable target contaminant from a fluid, and methods for their use. In embodiments, these systems and methods include an oxidizing agent, wherein adding the oxidizing agent to the oxidizable target contaminant forms an oxidized species that precipitates as an insoluble precipitate in the fluid; a substrate that forms a removable complex with the insoluble precipitate, thereby sequestering the oxidizable contaminant, and a removal system for removing the removable complex from the fluid. | 01-16-2014 |
20140158627 | CATION ADSORBENT AND TREATMENT METHOD FOR SOLUTION USING THE SAME - A cation adsorbent of an embodiment includes tungsten oxide particles having a BET specific surface area in a range of 0.82 m | 06-12-2014 |
20140263071 | METHOD FOR COLLECTING METALS - A method for collecting metals from a solution, in which method solid insoluble or sparingly soluble bisphoshonate of formula I | 09-18-2014 |
20150008186 | PROCESS FOR REMOVAL OF RADIOACTIVE CONTAMINATION FROM WASTEWATER - A process removes radioactive contamination from wastewater obtained in the decontamination of a cooling circuit of nuclear reactors or of parts thereof or in the course of operation of a nuclear reactor. A MnO | 01-08-2015 |
20150076070 | ADVANCED TREATMENT METHOD FOR BIOCHEMICAL TAIL WATER OF COKING WASTEWATER - The present invention discloses a method for advanced treatment of bio-treated coking wastewater, belonging to the field of advanced treatment and recycled use of wastewater. It adopts polymeric ferric sulfate (PFS) and polyacrylamide (PAM) as the flocculant for pre-treatment of bio-treated effluent. After the process of precipitation and filtration, the effluent is guided through an adsorption column filled with environmentally-friendly nano-composites whereby the advanced treatment of the bio-treated coking wastewater is achieved. When the absorption process reaches the breakthrough point, the adsorption operation will be stopped and sodium hydroxide solution is used as the desorption reagent for regenerating the nano-composites; the high-concentrated component of the desorption liquid is sent out for incineration or production of coal water slurry, meanwhile the low-concentrated component of the desorption liquid is used to prepare sodium hydroxid solution for the adsorption process of the next batch. The present invention features simple operating procedures and comparatively lower cost, and can be widely used in advanced treatment and comprehensive utilization of coking wastewater. It embodies not only significant environmental benefits but also promising market potential. | 03-19-2015 |
20150096939 | METHOD FOR REMOVAL OF DISSOLVED METAL CATIONS FROM AQUEOUS FLUIDS USING MODIFIED CAPTURE POLYMERS AND TETHER POLYMER BEARING ANCHOR PARTICLES - Systems and methods are presented for removing an ionic material from a fluid using a capture polymer that sequesters the ionic material and an anchor particle bearing a tethering polymer. The tethering polymer complexes with the capture polymer after the capture polymer has sequestered the ionic material, thereby affixing a complex of capture polymer and ionic material to the anchor particle to form a removable complex. The removable material can be segregated from the fluid via a removal system, thereby removing the ionic material from the fluid. | 04-09-2015 |
20160008532 | SYSTEM AND METHOD FOR BLOOD SEPARATION BY MICROFLUIDIC ACOUSTIC FOCUSING | 01-14-2016 |
20160145133 | METHOD AND APPARATUS FOR REMOVING UNWANTED DISSOLVED CHEMICALS FROM LIQUIDS - The invention discloses and claims various methods for the treatment of various wastewater streams of varying chemical composition using sonication in combination with a variety of other methods, including nucleation, ozonation, flocculation, clarification, adsorption, polishing, and filtration. The methods disclosed and claimed are useful in the treatment of industrial wastewater, brackish water, seawater, and for the treatment of oil and gas-well water as well as wastewater from hydraulic gas-fracturing processes for the production of oil and natural gas. | 05-26-2016 |
20180023200 | Carbon Formation Reactor and Method of Using Same | 01-25-2018 |
210667000 | Utilizing aluminum, calcium, or iron containing agent | 16 |
20100133195 | SURFACE-REACTED CALCIUM CARBONATE IN COMBINATION WITH HYDROPHOBIC ADSORBENT FOR WATER TREATMENT - The present invention relates to a process for reducing the amount of organic components in water, wherein a surface-reacted naturalcalcium carbonate and a hydrophobic adsorbent, selected from the group consisting of talc, hydrophobised calcium carbonate, hydrophobised bentonite, hydrophobised kaolinite, hydrophobised glass, or any mixture thereof, are brought into contact with the water to be purified, the surface-reacted natural calcium carbonate being the reaction product of a naturalcalcium carbonate with an acid and carbon dioxide, which is formed in situ by the acid treatment and/or supplied externally, and the surface-reacted natural calcium carbonate being prepared as an aqueous suspension having a pH of greater than 6.0, measured at 20° C. | 06-03-2010 |
20110100918 | WATER PURIFIER DIRECTLY CONNECTED TO FAUCET - The present invention relates to a water purifier of tap water. According to the present invention, a metal having a higher ionization tendency is ionized by exposing the metal to water to be purified. The metal having a higher ionization tendency is selected based on iron (Fe) and limited to metals having a higher ionization tendency as compared with iron (Fe). Electrons generated when a metal is ionized into water react with heavy metal ions that have already existed in the water to reduce the heavy metal ions. The heavy metal ions react with the electrons and are converted into heavy metal components. The heavy metals are pulled by magnets with a strong magnetism and removed from the water safely. When using a water purifier according to the present invention, users can drink water useful to the human body safely and hygienically since mineral components dissolved into water are not removed at all while removing the heavy metals although small quantities of heavy metals are dissolved into water. | 05-05-2011 |
20110127220 | Method for Treating Water by Advanced Oxidation and Ballasted Flocculation, and Corresponding Treatment Plant - The invention relates to a method for treating water charged with colloidal impurities, either dissolved or suspended, in a treatment plant, wherein said method comprises: the step of contacting said water, in an advanced oxidation area, with hydrogen peroxide in the presence of at least one transition-metal salt; a flocculation step that comprises contacting said water, in a flocculation area, with at least one flocculation additive and with at least one ballast comprising at least one non-soluble granular material denser than water and used as a biomass carrier; the step of feeding the water and floc mixture thus obtained into a settling area; the step of separating the treated water at the upper portion of said settling area from a mixture of sludge and ballast resulting from the settling of said flocs; the step of extracting the sludge and ballast mixture at the lower portion of said settling area; and the step of recycling at least a portion of the sludge into said advanced oxidation area. | 06-02-2011 |
20120018383 | METHOD FOR DISPERSING AND AGGREGATING COMPONENTS OF MINERAL SLURRIES - The disclosure relates generally to the use of zeolite to assist in dispersion of components in aqueous mineral slurries to release and separate individual components of the slurry, which may then be recovered from the slurry and, in particular, to the use of zeolite in the recovery of bitumen from an oil sands slurry, water recovery from the slurry, and the subsequent consolidation of residual mineral solids. | 01-26-2012 |
20120097614 | NORM REMOVAL FROM FRAC WATER - A method for treating low barium frac water includes contacting a frac water stream with a radium selective complexing resin to produce a low radium stream, passing the low radium stream through a thermal brine concentrator to produce a concentrated brine; and passing the concentrated brine through a thermal crystallizer to yield road salt. | 04-26-2012 |
20120193293 | WASTEWATER TREATMENT METHOD - Disclosed is a wastewater treatment method such that, after iron tetrachloride is added to wastewater containing arsenic and vanadium so as to make the molar ratio of the iron to arsenic in this wastewater 20 and iron tetrachloride is added to this wastewater so as to make the molar ratio of iron to vanadium 10-80, the pH is adjusted to 5.8-8.6, and solid-liquid separation is carried out. | 08-02-2012 |
20130118985 | HEAVY METAL REMOVAL FROM WASTE STREAMS - A method for removing heavy metals from contaminated water, comprising collecting metal salt precipitates from a water softening process, drying said precipitates, contacting water having a concentration of one or more heavy metals with said precipitates, and collecting water having a reduced concentration of said heavy metal(s). | 05-16-2013 |
20140069872 | METHOD FOR REMOVING MOLYBDATE FROM WATER USING AN ACTIVATED IRON TREATMENT SYSTEM - Method for removing molybdate from a fluid comprising contacting a fluid containing molybdate with a first reactive solid comprising zero-valent iron and one or more iron oxide minerals in contact therewith; a secondary reagent in contact with the reactive solid, wherein the secondary reagent is ferrous ion; and an added secondary solid, wherein the secondary solid comprises an iron oxide mineral. | 03-13-2014 |
20140116948 | Systems and Methods for Purification and Recovery of Fracking Water - The present disclosure relates, according to some embodiments, to systems and methods for removal of contaminants from water including, but not limited to, industrial wastewater, brackish water, municipal wastewater, drinking waters, and particularly waters obtained from fracking operations. For example, a method for purifying a feed water composition may comprise (a) contacting the feed water composition with soluble permanganate ions (MnO | 05-01-2014 |
20140124447 | FORMULATIONS AND METHODS FOR REMOVING HEAVY METALS FROM WASTE SOLUTIONS CONTAINING CHELATING AGENTS - Described are chemical formulations that remove heavy metals from waste solutions containing a chelating agent. Also disclosed are methods for removing heavy metals from waste solutions utilizing such chemical formulations. | 05-08-2014 |
20140175015 | WATER PURIFICATION METHOD - A water purification method comprising adding a purification agent to water having a contaminant concentration of 1 μg/L to 10 g/L, the purification agent containing an adsorbent having an average particle size of 100 nm to 500 μm, an iron-based flocculant, and an alkaline substance; causing the adsorbent to adsorb at least a part of the contaminants in water; settling the adsorbent with the adsorbed contaminants by the iron-based flocculant; and removing the sediment from water, wherein the purification agent is added in an amount of 0.01 g to 20 g per liter of water, can purify contaminated water conveniently and efficiently. | 06-26-2014 |
20140251914 | METHOD FOR TREATING ACID MINE DRAINAGE - A process for treating acid mine drainage containing heavy and base metals and soluble contaminants is provided. In one embodiment, at least a metal cation is added to the acid mine drainage at a pre-select pH to form insoluble heavy and base metal complexes. After the removal of the heavy and base metal complexes, the pH is raised to the alkaline range. Following removal of base metal hydroxides and gypsum, membrane filtration is employed to generate a treated membrane permeate having a reduced concentration of heavy and base metals and soluble contaminants, and a membrane reject stream containing a concentrated brine. The concentrated brine is further treated with additional lime and at least an aluminum salt to remove remaining soluble contaminants, thus producing a treated water stream with reduced levels of contaminants. Carbonation with CO | 09-11-2014 |
20140263072 | PROCESS AND PLANT FOR TREATING WATER - A process for removing suspended particles and at least one ionic species from a feed water stream to produce a product water stream, the process includes the steps of forming agglomerates of the suspended particles in the feed water stream; passing the feed water stream containing agglomerated particles through a bed of particulate sorbent material so as to sorb the ionic species from the feed water onto the sorbent to provide a loaded sorbent and filter the agglomerated particles from the feed water using the bed of particulate sorbent material as a filtration medium to load the bed with the agglomerated particles, and thereby produce the product water stream; removing the filtered particles and the ionic species from the filtration medium; and re-using the regenerated sorbent in step b). | 09-18-2014 |
20150053619 | Process for Hardness and Boron Removal - Both the hardness and boron content of wastewater may be reduced by contacting the wastewater with liquid sodium silicate (LSS) in an effective amount for such reductions followed by one or both of two additional procedures. The additional procedure may be contacting the wastewater with an Al( | 02-26-2015 |
20160145132 | WATER TREATMENT DEVICE AND WATER TREATMENT METHOD - The present invention is to provide a water treatment device and a water treatment method that can efficiently remove soluble silica in water to be treated. A water treatment device | 05-26-2016 |
20160251241 | WASTEWATER TREATMENT METHOD AND WASTEWATER TREATMENT APPARATUS | 09-01-2016 |