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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...
US20130220932 METHOD FOR FILTERING WATER IN AN AQUARIUM; FILTRATION UNIT AND REPLACEMENT KIT FOR PERFORMING SAID METHOD  
A method is described that is particularly effective for the filtration of an aquarium by means of a filtration unit wherein a cartridge containing activated carbon is cyclically replaced by a...
US20150023889 FLUORIDE-RESPONSIVE RIBOSWITCHS, FLUORIDE TRANSPORTERS, AND METHODS OF USE  
Disclosed are compounds, compositions, and methods relating to fluoride aptamers, fluoride-responsive riboswitches, fluoride-regulated expression constructs, fluoride transporters, nucleic acids...
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...
US20150076072 HIGH-CAPACITY ANION EXCHANGE MATERIALS  
The present disclosure is directed to polymeric beads, methods of making the beads, and methods of using the beads as high-capacity anion exchange materials. In particular, the disclosure provides...
US20150157783 METHOD TO SELECTIVELY BIND AND EXTRACT PHOSPHATE  
The invention provides compounds, resins and electrodes comprising functionalized 1,3,5-tris[2-(3-(phenyl)thioureidophenyl]benzenes that selectively bind phosphate anions.
US20150034560 METHOD FOR SELECTIVELY BINDING AND SEPARATING PHOSPHATE ANIONS  
Disclosed is a method for selectively binding and separating phosphate anions from a liquid medium by providing a cross-linked molecularly imprinted polymer including cross-linked chitosan having...
US20130270190 Extraction Of Anions From Solutions And Mixtures Using Hyperbranched Macromolecules  
Hyperbranched macromolecules and methods are described for selectively filtering contaminants such as anions from water and non-aqueous solutions, particularly in the presence of competing...
US20110284471 ALGINATE IMPROVEMENT  
A method is described use of hydrocolloids for removal of organic and inorganic pollutants from a continuous stream of liquid where chemical composition of the water inhibits the reactants for...
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....
US20090084730 Optionally Modified And Optionally Insoluble Starches For Eliminating Natural Organic Contaminants From Liquids  
Modified and insoluble starches are utilized for eliminating natural organic substances/contaminants from liquids and in particular from liquids used for food applications, such as drinking water,...
US20140260468 Iron-Functionalized Alginate for Phosphate and Other Contaminant Removal and Recovery from Aqueous Solutions  
A biodegradable iron-crosslinked alginate is useful as a remediation agent for environmental contaminants such as phosphate. When charged with phosphate, or other nutrients, the...
US20120111796 Boron Selective Ionic Liquids and Polymeric Ionic Liquids, Methods of Making and Methods of Use Thereof  
Boron selective ionic liquids and polymeric ionic liquids, methods of making and methods of using the same are disclosed.
US20130240452 METHODS, APPARATUS AND SYSTEMS FOR POLISHING WASTEWATER UTILIZING NATURAL MEDIA FILTRATION  
Wastewater treatment systems, methods and apparatus for polishing a wastewater stream comprising a plurality of contaminants are provided. One system includes a vessel containing a plurality of...
US20090272693 Utilization of polysaccharides to eliminate anions of heavy metals from water  
Water contaminated with anions of heavy metals, e.g., arsenic values, is purified by contacting same with a composition containing at least one polysaccharide, such as starches or vegetable gums.
US20150246338 SLURRY FOR TREATMENT OF OXYANION CONTAMINATION IN WATER  
A slurry for treatment of oxyanion contamination in water including: an expandable bentonite having at least 0.50% sodium as disodium monoxide; said bentonite having or being treated to have a...
US20120024027 WATER PURIFICATION MATERIAL, WATER PURIFICATION METHOD, PHOSPHATE FERTILIZER PRECURSOR, AND METHOD FOR MANUFACTURING A PHOSPHATE FERTILIZER PRECURSOR  
There is provided a water purification material including: a composite metal hydroxide exhibiting a layered structure and including iron ions, calcium ions, and at least one of nitrogen ions and...
US20080221218 Receptor  
The present invention relates to synthetic receptors, products and methods which are useful in relation to the binding of phosphates for example in water purification and renal dialysis systems.
US20110056887 REMOVAL OF OXO ANIONS FROM WATER  
The present invention relates to a process for removing oxo anions from water and aqueous solutions having a high proportion of silicate by means of a filter arrangement comprising at least one...
US20110089115 METHODS FOR PREVENTION AND REDUCTION OF SCALE FORMATION  
Disclosed herein are methods of preventing or reducing scale formation or corrosion by combining at least one scale-forming fluid comprising at least one scaling compound with at least one...
US20130175222 WATER PURIFICATION DEVICE  
A water purification device includes a housing including a first chamber in communication with a second chamber, a first filtration stage, and a second filtration stage. The first chamber has the...
US20060237365 Silicone derivatized macromolecules  
The present invention provides a silicone derivatized macromolecule that is supported on a particulate support or a separation membrane and method for making that composition. The...
US20130334140 TREATMENT OF EFFLUENTS FROM THE ELECTROPLATING INDUSTRY  
The invention relates to a process for separating fluorinated acids, in particular perfluorocarboxylic acids and perfluorosulphonic acids, or salts thereof from metal-containing, aqueous...
US20050127004 Filter system for removing contaminants from water and method of use  
A water filter device containing copper media for effectively treating water and the method of use are disclosed. The water filter device has an outer housing having an inlet and an outlet; and an...
US20120175307 Multi-layered macromolecules and methods for their use  
Multi-layered macromolecules wherein the layers are covalently bonded together and wherein the macromolecules are covalently bonded to solid particulate substrates, methods for the preparation of...
US20130168320 ORGANIC TEMPLATED NANOMETAL OXYHYDROXIDE  
Disclosed are granular composites comprising a biopolymer and one or more nanometal-oxyhydroxide/hydroxide/oxide particles, along with methods for the preparation and use thereof.
US20080047902 MEDIA FOR THE REMOVAL OF HEAVY METALS AND VOLATILE BYPRODUCTS FROM DRINKING WATER  
Water purification media contain an activated carbon having at least one of specific a particle size, surface area, and porosity; and a microcrystalline and/or amorphous titanosilicate at least...
US20110108488 BORON-SELECTIVE RESINS  
The present invention relates to boron-selective resins containing glucamide structures, a method for production thereof and also use thereof for removing boron from liquids, preferably from...
US20110049057 Metal Immobilization Using Slag Fines  
A method for immobilizing metal in soil includes blending slag fines with soil to form a media. The slag fines immobilize metal present in the media and reduce leaching of the metal into water.
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...
US20130168321 NITROGEN-CONTAINING ACTIVATED CARBON MATERIAL  
An activated carbon material for removing a contaminant from a liquid. The activated carbon material can be a plurality carbon grains that have a pore volume of approximately 0.1 milliliters per...
US20110186522 REMOVAL OF NUISANCE ANION AND ANIONIC MATERIALS USING POLYALKYLENEIMINES SUCH AS POLYETHYLENEIMINE  
The present invention features a method of removing one or more nuisance anionic materials, such as pharmaceuticals and dyes, from a solution, such as wastewater. Related aspects of the invention...
US20050000903 Method for land improvement and microorganisms therefor  
The invention relates to methods for land improvement (soil reclamation), preferably for soil remediation comprising the steps of (i) placing a material useful for improving soil, and an explosive...
US20060131240 Process for treating solvents  
The present invention provides for a process of treating organic solvents that are useful in the semiconductor industry by contacting the organic solvent with an anion exchange resin to remove...
US20140138318 TREATMENT OF WATER, PARTICULARLY FOR OBTAINING ULTRAPURE WATER  
A process is described for treating water, in particular for obtaining ultrapure water, in which a decationized water stream is passed at least through a first strong base anion exchange bed and a...
US20150217288 Particle for Recovering an Anion from an Aqueous Solution  
The invention concerns a particle for recovering an anion from an aqueous solution comprising a magnetic material associated with a silica based layer forming a magnetic microparticle with a...
US20100294723 DETECTION OF NEGATIVELY CHARGED POLYMERS USING WATER-SOLUBLE, CATIONIC, POLYTHIOPHENE DERIVATIVES  
Novel methods allowing for the simple optical and electrochemical detection of double-stranded oligonucleotides are disclosed. The methods are rapid, selective and versatile. Advantageously, they...
US20120152759 PERCHLORATE REMOVAL FROM CONCENTRATED SALT SOLUTIONS USING AMPHOTERIC ION-EXCHANGE RESINS  
A process for reducing the concentration of perchlorate in an aqueous concentrated multi-component salt solution comprising treating the salt solution with an amphoteric ion-exchange resin to...
US20060237370 Method of removing arsenic from potable water  
A method for removing arsenic from drinking water using a flexible modular absorption system. Modules containing adsorption media may be connected through a modular header system in various...
US20050269269 Perchlorate removal process  
Systems and methods for removing perchlorate load from ion exchange resin regeneration brines.
US20140151296 PRODUCED WATER TREATMENT TO REMOVE ORGANIC COMPOUNDS  
Systems and methods for removing organic contaminants from water may be used, for example, to treat produced water from a steam assisted heavy oil recovery operation. The treated produced water...
US20070056911 Selective removal of toxic compounds like arsenic from drinking water using a polymeric ligand exchanger  
A method of removing toxic compounds from water comprises the steps of providing a polymeric ligand exchanger having a chelating resin containing nitrogen electron donor atoms and a transition...
US20150251927 Cerium (IV) Oxide with Exceptional Arsenic Removal Properties  
A cerium (IV) oxide composition having unexpectedly greater arsenic loading capacities than oxides of cerium (IV) of the prior art are disclosed. The arsenic loading capacities are greater at low...
US20120261347 NON-METAL-CONTAINING OXYANION REMOVAL FROM WATERS USING RARE EARTHS  
The present disclosure is directed to the use of rare earth-containing additives, particularly rare earth-containing additives comprising rare earths of plural oxidation states, to remove...
US20140158630 High Capacity Perchlorate-Selective Resins From Hyperbranched Macromolecules  
A resin is provided for selectively binding to perchloride and related anions (e.g., TcO4āˆ’, ReO4āˆ’ and Iāˆ’) in aqueous solution. The resin may take the form of microparticles or beads. The beads are...
US20080169242 METHODS FOR SEPARATING AND ANALYZING ANIONIC COMPOUNDS  
Systems, methods and compositions for the purification, separation and analysis of anionic compounds, including polyanionic compounds are disclosed.
US20120199538 SULPHUR REMOVAL  
A process for desulfurizing a process fluid includes contacting a sulphur compound containing feed stream with an absorbent including an iron, copper or nickel compound capable of forming a metal...
US20120189513 IONIC IMPURITIES REJECTION AND CHROMATOGRAPHIC PURIFICATION USING ION EXCHANGE  
The invention covers the combination of utilizing the selectivity of an adsorbent to remove species from a liquid containing mixtures of ions and then subjecting the loaded resin to a...
US20100181257 Extraction Of Anions From Solutions And Mixtures Using Hyperbranched Macromolecules  
Hyperbranched macromolecules and methods are described for selectively filtering contaminants such as anions from water and non-aqueous solutions, particularly in the presence of competing...
US20120145639 MODIFIED CLAY SORBENTS  
The present invention relates to modified clay sorbents which may be used as sorbents for chemical compounds. In addition, the present invention also relates to the use of modified clay sorbents...

Matches 1 - 50 out of 99 1 2 >