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US20150027949 METHOD AND FILTER FOR REMOVING NITRATE IONS  
A method for removing nitrate ions from a solution is presented. The method includes providing a polymer comprising a protonated amine moiety and an anion derived from an acid having a pKa value...
US20080035578 Triple-tank system and method for treating water  
Disclosed is a three-tank water treatment system. In operation, water flows through each tank in succession, with each tank performing one or more treatment operations. By allocating a separate...
US20130032543 Decontamination System with Insoluble Additives  
Exemplary decontamination systems of the present disclosure may allow for removing contaminants from a fluid. In an embodiment, a decontamination system may include a filtration unit operable to...
US20140138319 Dental Amalgam Filter Including Tungsten Disulfide Nanopowder  
The present invention relates to the preparation and use of a three-dimensional polymer matrix including tungsten disulfide nanopowder coated on and embedded within a solid porous support for...
US20120261346 Raw water hardness determination in a water treatment system via the conductivity of soft or blended water  
A method of operating a water treatment system (1), having a softening device (4), in particular comprising an ion-exchange resin (7),a conductivity sensor (9),and electronic control device (13),...
US20150210565 DE-IONIZATION TREATMENT DEVICE AND METHOD FOR OPERATING DE-IONIZATION TREATMENT DEVICE  
A de-ionization treatment device includes a capacitive de-ionization treatment unit. In a de-ionization step before a regeneration step, the de-ionization treatment device injects a scale...
US20080116134 Brine-Conserving Nanofiltration Water Softener System  
A brine recycling apparatus and process form a part of a water softening system (10). The water softening system (10) has a brine tank (43) for receiving brine solution that has passed through a...
US20100300977 OPERATIONS OF SELENIUM REMOVAL SORBENT BEDS  
Methods and apparatus relate to removing selenium from a fluid. The fluid includes non-selenium constituents that are insoluble at a pH in which the fluid is passed through a sorbent bed in order...
US20110030967 METHOD FOR GENERATING SOFTENED INJECTION WATER  
A method for generating a softened injection water comprising: (A) generating the softened injection water by (i) introducing a source water having a total dissolved solids content of up to 15,000...
US20140305873 Systems and Methods For Separating Mine Tailings From Water-Absorbing Polymers and Regenerating the Separated Water-Absorbing Polymers  
Systems and methods for separating mine tailings from water-absorbing polymers and regenerating the separated water-absorbing polymers. The systems and methods include a separation assembly that...
US20130134098 WATER TREATMENT PROCESSES FOR NORM REMOVAL  
Methods for treating water to remove radium include contacting the water with a magnetic adsorbent comprising manganese oxide(s), and applying a magnetic field to separate the magnetic adsorbent...
US20130174622 Capture, Control or Removal of Nutrient Laden Effluent, Run-Off or Agricultural, Industrial, Commercial or Domestic Waste Flow  
A treatment medium has a particulate natural substrate saturated, suffused and/or coated with hydrous iron oxide. The particulate substrate can be wood based, such as wood chips, bark, sawdust,...
US20140374357 METHODS FOR DECREASING AQUEOUS HALIDE AND ORGANOHALIDE LEVELS USING PLANT BIOMASS  
Disclosed are processes to treat water having halide ions and organohalides. The process comprises contacting a plant biomass with an alkaline solution to give an alkaline plant biomass, and...
US20110062084 METHOD FOR REMOVING PHOSPHORUS  
A method for removing phosphorus includes at least the steps of: 1) placing lanthanum hydroxide (absorbent) into a device for removing phosphorus, and allowing sewage having a phosphorus content...
US20120175308 METHOD FOR REMOVING ALKALINITY, HARDNESS, AND DISSOLVED SOLIDS FROM WASTE WATER  
A highly efficient method for treating contaminated water streams from any source where alkanlinity, hardness, or dissolved solids need to be removed before the water is discharged to the...
US20130192637 UREA SULFATE AND SODIUM CHLORIDE BLEND FOR REGENERATION OF CATION EXCHANGE RESINS  
Methods and systems for acid regeneration of ion exchange resins are disclosed. Acid resins designed for use in a variety of cleaning application using a water source use a treated, softened,...
US20050006311 Automatic sensing of valid regeneration signal  
A water softening method and corresponding apparatus in which a determination is made whether a valid regeneration in an operational cycle has occurred, including the steps of providing a...
US20150031908 METALLATED METAL-ORGANIC FRAMEWORKS  
Porous metal-organic frameworks (MOFs) and metallated porous MOFs are provided. Also provided are methods of metallating porous MOFs using atomic layer deposition and methods of using the...
US20110278230 PROCESS FOR IN-SITU CLEANING OF DRINKING WATER FILTRATION MEDIA  
The present invention provides a process to clean water filtration media in a filtration bed. The process includes applying a granular cleaner to the water filtration media and applying an...
US20150068565 WATER SOFTENING APPARATUS, DISHWASHER HAVING THE SAME AND CONTROL METHOD THEREOF  
A water softening apparatus having an improved structure to provide a function of an air brake, a dishwasher including the same and a control method thereof, the water softening apparatus having...
US20120241383 REGENERABLE FILTER UNIT FOR REMOVING METAL, REGENERABLE FILTER SYSTEM INCLUDING THE SAME, AND METHOD OF OPERATING REGENERABLE FILTER SYSTEM  
A filter unit may include a water permeable first electrode, a second electrode arranged so as to be spaced apart from and opposite to the first electrode, and a non-water permeable separator that...
US20120318743 Water Desalination and Treatment System and Method  
The invention comprises water desalination methods and a system for such, which includes treatment of water in cation and anion ion exchange columns, and regenerating the columns after treatment...
US20150068291 MICRO-SOLID PHASE EXTRACTION OF HALOACETIC ACIDS  
The micro-solid phase extraction of haloacetic acids is a procedure that extracts haloacetic acids from aqueous solution using iron-modified rice husk silica as the stationary phase or sorbent....
US20130220935 REMOVAL OF 1,4-DIOXANE FROM WATER USING CARBONACEOUS ADSORBENTS  
The present invention relates to the use of a carbonaceous adsorbent for the removal of a recalcitrant compound (1,4-dioxane) from contaminated water. The adsorbent is able to reduce the...
US20140263055 Ion Sequestration for Scale Prevention in High-Recovery Desalination Systems  
Cations that can precipitate from an aqueous composition to produce scaling are sequestered by adding a multi-dentate ligand to the aqueous composition. The multi-dentate ligand bonds with the...
US20130192638 UREA SULFATE AND SODIUM CHLORIDE BLEND FOR REGENERATION OF CATION EXCHANGE RESINS  
Methods and systems for an integrated acid regeneration of ion exchange resins are disclosed for use in cleaning applications. Acid resins designed for use in a variety of cleaning application...
US20110174739 LITHIUM RECOVERY DEVICE USING SEPARATOR RESERVOIR, LITHIUM RECOVERY METHOD AND LITHIUM ADSORPTION/DESORPTION SYSTEM USING THE SAME  
The present invention relates to a lithium recovery device comprising a separator reservoir and manganese oxide, a lithium recovery method using the same, and a lithium adsorption/desorption...
US20110006010 Interlayer Ion Replacing Method for Hydrotalcite-Like Substance, Regenerating Method, and Interlayer Ion Replacing Apparatus  
There are provided an interlayer ion replacing method and an interlayer ion replacing apparatus which can efficiently replace the interlayer negative ions of hydrotalcite-like substances. The...
US20150136706 METHOD FOR REMOVING CHROMIUM FROM WATER USING WEAK BASE ANION EXCHANGE RESIN AT NEAR-NEUTRAL PH  
A method of removing chromium from water using a weak base anion exchange resin at a pH above about 5 includes the step of periodically reducing a flow of the water through the ion exchange resin...
US20120103286 ADSORBENT STRUCTURES FOR REMOVAL OF WATER AND FUEL CONTAMINANTS IN ENGINE OIL  
Devices and methods for removal of condensed, blow-by contaminants with small molecular dimensions from the circulating lubricating engine oil of internal combustion engines, including automotive...
US20140001125 NANOSTRUCTURE MATERIAL SUPPORTING ARSENIC ION ADSORPTION COMPOUND AND METHOD TO REMOVE ARSENIC ION USING THE SAME  
Means for reducing an arsenic ion concentration in the solution to the degree of ultra trace amount are provided. Ammonium molybdate is supported by a nanostructure material by mixing the...
US20130001167 PROCESS FOR WATER SOFTENING  
A method is described for removing hard water components from water wherein the removed ions are not replaced by sodium ions. The method includes the steps of passing water having dissolved hard...
US20120125855 METHOD FOR TREATING LIQUID CONTAINING PERCHLORATE ION  
The present invention provides a novel and practical method for treating a perchlorate ion-containing liquid. The perchlorate ion-containing liquid is brought into contact with a weak base anion...
US20110147315 METHOD OF WATER DISCHARGE MANAGEMENT  
A method of water discharge management in a water processing system is provided. The method includes providing a supply of a first solution, providing a supply of a second solution, and...
US20110158872 Method and System for Adsorbing Pollutants and/or Contaminants  
The present invention relates to a method and a multi-component system for adsorbing contaminants and/or pollutants from a contaminated hot fluid by using a turbulent air stream, to adiabatically...
US20090277841 METHOD FOR MINIMIZING CORROSION, SCALE, AND WATER CONSUMPTION IN COOLING TOWER SYSTEMS  
This invention is an improved process for operation of evaporative recirculating cooling systems. In addition to reducing the scaling and corrosive tendencies of the water, the method eliminates...
US20140231354 HEAVY METAL REMOVAL METHODS AND SYSTEMS  
A support impregnated with selenium and capable of effectively removing a heavy metal from a process stream that is at an ambient temperature or is at an elevated temperature.
US20100043633 SORPTION METHOD, DEVICE, AND SYSTEM  
Methods, devices, and systems, and devices for carrying out sorption (adsorption and absorption) for separating and/or purifying fluid mixtures are disclosed. Medical oxygen generators,...
US20150203364 INTEGRAL MEDIA RECONDITIONING AND RECOVERY SYSTEM  
The present technology is directed generally to media reconditioning and/or recovery systems for use in fluid filtration. In some embodiments, a reconditioning system includes an additive source...
US20140008303 IN-SITU SELECTIVE CONTAMINANT ADSORPTION IN URINALS AND TOILETS  
An absorption device for use with a waterless urinal comprises an exchange container containing at least one ion exchange resin. The exchange container comprises a housing and at least one resin...
US20150225260 SOFTENING APPARATUS  
A softening apparatus in which resistance applied between electrodes is decreased to reduce power consumption. The softening apparatus includes a regeneration unit and a softening unit. The...
US20130012379 MODIFIED SOL-GEL DERIVED SORBENT MATERIAL AND METHOD FOR USING THE SAME  
Disclosed is a swellable, sorbent material formed of a sol-gel derived composition having a porous matrix and a sorbent property modifier intermixed with at least a portion of the porous matrix....
US20150203372 METHOD FOR TREATING ALKALINE WASTEWATER  
The invention provides a method for the treatment of alkaline wastewater comprising sodium ions and organic impurities, the method comprising the steps of a) contacting part of the wastewater with...
US20150251928 ION EXCHANGE METHODS FOR TREATING WATER HARDNESS  
The present invention includes a novel salt-free water softening method that utilizes an exchange medium (such as a gel exchange polymer, a macroporous exchange polymer, or an inorganic cation...
US20130048567 METHOD FOR REMOVING CONTAMINANTS FROM WATER USING THIOL-MODIFIED SURFACES CONTAINING ESTER LINKAGES  
The method manipulates the chemical mechanism of the toxicity of arsenic in humans, which involves the binding of arsenic by thiols on proteins and peptides, to remove arsenic from water. PET...
US20110011803 SORBENT FIBER COMPOSITIONS AND METHODS OF USING THE SAME  
The various embodiments of the present invention relate generally to sorbent fiber compositions. More particularly, various embodiments of the present invention are directed towards sorbent fibers...
US20150096940 WATER TREATMENT PROCESS  
The present invention relates to water treatment, in particular to a process for the removal of contaminants in a raw water source where the contaminants consist of organic species and inorganic...
US20080203030 Method of Extracting Organic Chemicals from Water or Air Using Polar Polyurethane as a Solid Extraction Medium  
A method of extracting sparingly soluble organic contaminants from a water or gas stream is provided. Contaminants are removed from a contaminant stream by passing the stream through hydrophilic...
US20090020478 PROCESSES FOR THE REGENERATION OF AN ANION EXCHANGER LOADED WITH HEXACHLOROSTANNATE  
Processes comprising: providing an anion exchanger at least partially loaded with hexachlorostannate; and contacting the at least partially loaded anion exchanger with a 1 to 10 wt. % hydrochloric...
US20110210073 POLYMERIC SORBENTS FOR REMOVING LOW LEVEL CONTAMINANTS  
The present invention relates to functionalized polymeric sorbents and processes of employing them to remove low level contaminants from fluid streams. Poly(glycidyl...

Matches 1 - 50 out of 185 1 2 3 4 >