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US20100096332 Treatment of contaminated water streams from coal-bed-methane production  
A method for treating contaminated water streams resulting from the production of coal-bed-methane.
US20140021137 SYSTEM AND METHOD FOR THE TREATMENT OF WASTEWATER  
A system and method for the treatment of wastewater. In one aspect, the invention can be a method for treating wastewater comprising: a) introducing untreated wastewater into a holding tank: b)...
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...
US20120040821 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...
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...
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...
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...
US20090039027 PURIFICATION OF WATER  
A process for providing water with a lowered salinity and which produces at least one recoverable waste stream containing a useful by-product, the process including treating raw water which...
US20140299550 WATER TREATMENT SYSTEM  
A method and apparatus for treating water including a tank having an inlet and outlet and a water treatment material or resin within the tank. A control valve assembly having multiple, separable...
US20120199536 WATER FILTRATION SYSTEM  
A water filtration system having a tank, a fluid flow interface into the interior of the tank, and a control valve. The control valve is in fluid communication with the fluid flow interface. The...
US20140061135 Water Detoxification by a Substrate-Bound Catecholamine Adsorbent  
A bio-inspired method for detoxifying contaminated water is disclosed. In the method, polydopamine, a mussel-inspired adhesive catecholamine was used as an adsorbent to effectively remove from...
US20130248452 METHOD OF TREATING TREATMENT OBJECT CONTAINING HARMFUL COMPOUND  
Disclosed is a method of treating a treatment object containing a harmful compound. The method includes: a step A of bringing a treatment object containing a harmful compound containing an element...
US20080257824 Method and Apparatus for Water Purification and Regeneration of Micro-filtration Tubules  
A method of water purification by submicron filtration deploys a 6-way valve to periodically flush or clean the tubules in a predetermined selection of cleaning steps, some of which optionally...
US20150090663 SYSTEMS AND METHODS RELATED TO PROPORTIONAL REGENERATION OF WATER TREATMENT SYSTEMS  
A method for fluid treatment that provides variable or alternative regeneration cycles within the same fluid treatment device. The duration of all stages of the regeneration cycle can be adjusted...
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...
US20140061134 WATER TREATMENT SYSTEM WITH CARBON REGENERATION CIRCUIT  
A water treatment system (50) utilizing granular activated carbon (GAC) for the removal of organic contaminants in a process water circuit (52), and including a carbon regeneration circuit (54) in...
US20090277842 METHOD FOR REGENERATING IONIC EXCHANGE RESINS USED FOR SOFTENING WATER AND DEVICE FOR SOFTENING WATER  
In a method for regenerating ionic exchange resins (3) used for softening water and a device for softening water, a flow of brine (S) is fed into a housing compartment (2) of the resins (3) at a...
US20140116952 REDUCED MAINTENANCE WATER TREATMENT APPARATUS INCORPORATING WET AIR REGENERATION  
A water treatment system (100) incorporating a solubles concentration reduction device (104) between a powdered activated carbon treatment (PACT) system (106) and a wet air regeneration (WAR)...
US20140263075 COMPOSITIONS AND METHODS FOR CLEANING WATER FILTRATION MEDIA  
Compositions and methods for removing surface deposits in situ from filtration media contained in water filtration beds may include a solid acid component, a solid oxidizer, low temperature...
US20080006582 Method for Preparing and Use of a Composition for Control of Microbial Contamination in Drinking Water  
Disclosed is a method and composition useful for controlling microbial contamination in drinking water produced from condensation. The composition comprises a zeolite which is modified to...
US20150251161 METHOD AND APPARATUS FOR ZIRCONIUM OXIDE RECHARGING  
Methods and related apparatuses for sorbent recharging are provided. The methods and related apparatuses for recharging can recharge a specific rechargeable layer of a sorbent material such as...
US20140291250 NANO-STRUCTURED COMPOSITE MATERIALS BASED ON COMPOSITIONS OF MANGANESE AND CERIUM, USABLE AS OXIDATION CATALYSTS AND/OR MOLECULAR ADSORBERS  
The present invention concerns a nano-structured composite material based on compositions of manganese and cerium, composed of aggregated composite nanospheres, ranging in size from 1 to 40 nm, of...
US20090032023 CLOSED REVERSIBLE BREATHING APPARATUS HAVING A METAL ORGANIC FRAMEWORK  
The present invention relates to methods for removing carbon dioxide and, if appropriate, water from breathing air in closed or partially closed systems using a porous metal-organic framework...
US20090261042 METHOD FOR ADSORPTION OF FLUID CONTAMINANTS AND REGENERATION OF THE ADSORBENT  
The invention provides methods for treating a fluid, particularly water, contaminated with organic compounds, organisms, toxic substances, hazardous substances, ammonia, or mixtures thereof, by...
US20100193444 WATER SOFTENER REGENERATION  
A new process for ion exchange softening of water used in Once-Through Steam Generators (OTSGs) by recovering and using the salt content of the blowdown water from the OTSG to regenerate the...
US20090200233 METHODS AND DEVICES FOR THE REMOVAL OF ORGANIC CONTAMINANTS FROM WATER  
Compositions, methods and devices for the removal of organic contaminants from fluids using hydrophobic micro-porous adsorbents, which are regenerated by advanced oxidation.
US20140319060 METHOD FOR REMOVING AMMONIUM NITROGEN FROM ORGANIC WASTE WATER  
The invention relates to a method for removing ammonium nitrogen from organic waste water, which method comprises the steps of applying waste water with a content of ammonium to an organic,...
US20100051556 Methods of purifiying water using waste brines to regenerate ion-exchange resins  
Water is purified by ion-exchange. The ion-exchange resins are regenerated by contacting the resins with waste brines previously discarded, thus to improve the economics of discarding the waste...
US20060021944 Ion exchange regeneration and upw treatment system  
An improved process for regenerating ion exchange resin, includes a regeneration step of displacing captured ions from the resin to regenerate its ion-capture functionality, followed by one or...
US20090026141 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....
US20120211427 REGENERATIVE PURIFICATION OF A PRETREATED BIOMASS STREAM  
It is disclosed a process for removing at least a portion of the furfural and acetic acid in a first stream comprised of water, at least one compound selected from the group consisting of furfural...
US20090236288 METHOD FOR SEPARATING MULTIVALENT METAL IONS  
A method and apparatus are described for removing iron cations and/or zinc cations from an autodeposition coating bath by passing a limited number of bed volumes through a column containing a gel...
US20130292337 POLYMERIC IRON CHELATING AGENT  
Disclosed is a water-insoluble polymeric iron chelating agent having a polymer backbone and an aromatic ring attached to the polymer backbone through an —NH—CH2— bond, wherein the aromatic ring...
US20080053918 Systems and methods for controlling resistivity and pH levels in a coolant delivery system  
Systems and methods for controlling resistivity and pH levels in a coolant delivery system are provided. The coolant delivery system can employ a first ion introduction element that introduces...
US20080110834 Method for Hygienic Operation of an Ion Exchanger and Ion Exchanger System  
The invention relates to a method and corresponding plant for the hygienic operation of an ion exchanger, in particular, in water treatment, whereby the ion exchanger is regenerated by a...
US20090310733 DEMINERALIZER OF PRIMARY COOLANT SYSTEM IN PRESSURIZED-WATER REACTOR POWER PLANT AND METHOD FOR PURIFYING PRIMARY COOLING WATER IN PRESSURIZED-WATER REACTOR POWER PLANT  
By using a boric acid-resistant anion exchange resin as the anion exchange resin used in a demineralizer that purifies the primary cooling water in a pressurized-water reactor power plant, even...
US20090101585 Chromatographic methods  
The current invention comprises a method for the regeneration of a cation exchange chromatography column.
US20080156732 Ion exchange process  
A method is described that relates to reducing amounts of regenerant waste or increasing the concentration of regenerant waste from ion exchange processes. A method is described that may allow a...
US20080148784 Water reuse method in cleaning device and washing machine  
There disclosed a water reuse method in which a surfactant is easily removed from surfactant-including for-treatment water in a cleaning device, whereby water can be reused, and an adsorbent can...
US20080078722 Method For Purifying Aqueous Alkaline Solution  
A method for purifying an aqueous alkaline solution, which comprises: bringing a fibrous activated carbon into contact with an aqueous alkaline solution-to remove a metal component other than...
US20100163489 SYSTEM AND METHOD FOR WASTEWATER TREATMENT  
The present disclosure is directed towards systems and methods for the treatment of wastewater. A system in accordance with one particular embodiment may include at least one resin tank including...
US20080041789 Method for Cleaning Ion Exchange Resins Using an Oxidizing Agent  
A method is provided for reducing natural organic fouling levels in contaminated ion exchange resins by contacting the resins with an oxidizing agent solution.
US20050127006 Method and apparatus for increasing the capacity of ion exchange resins  
The ion exchange capacity of resin in an ion exchange column can be increased by applying a magnetic field to the resin while the ion exchange procedure takes place. The magnetic field may be...
US20100224564 METHOD FOR REMOVING ORGANIC CONTAMINANTS FROM RESINS  
The disclosure describes a novel method for operating a resin treatment system and a novel organic polisher. The method for operating the resin treatment system is efficient and cost effective.
US20170129785 METHOD FOR WATER TREATMENT BY ADSORPTION AND FILTRATION ON A GRANULAR MATERIAL BED  
Method for treating water by filtration on a bed of granular material in order to reduce its content in contaminants, said method comprising the steps for: making said water travel in transit in a...
US20170096348 AMMONIA ADSORBENT  
The object of the invention is to provide an adsorbent that can adsorb ammonia with no large volume change between absorption and desorption, that has a high ammonia and/or ammonium ion adsorption...
US20160318774 Water Detoxification by a Substrate-Bound Catecholamine Adsorbent  
A bio-inspired method for detoxifying contaminated water is disclosed. In the method, polydopamine, a mussel-inspired adhesive catecholamine was used as an adsorbent to effectively remove from...
US20160257580 AMELIORATION OF ACID MINE DRAINAGE  
A process for the amelioration of acid mine drainage useful in shale hydrolyic fracturing operations for the production of natural gas involving the exchange of sulfate and chloride ions by an ion...
US20160229711 RESIN REGENERATION METHOD FOR REDUCING ORGANIC CONTAMINANTS  
The present invention relates generally to regeneration of ion exchange resins and more particularly to regeneration using low concentrations of brine to remove organic contaminants from the resin.

Matches 1 - 50 out of 61 1 2 >