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WO/2007/050221A1 |
Disclosed are methods for using chlorine dioxide, e.g., pure chlorine dioxide solutions, for cleaning, regenerating and/or sterilizing chromatographic media. Such methods may be carried out in situ, e.g., without removing the media from ...
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WO/2007/043278A1 |
A method of regenerating a basic anion-exchange resin by removing a fluorinated emulsifying agent from the basic anion-exchange resin having the fluorinated emulsifying agent adsorbed thereon. It does not necessitate the safety device/re...
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WO/2007/040266A1 |
The invention provides a multiple-bed process and equipment for demineralizing condensate which make it possible to reduce remarkably the reverse regeneration rate in regenerating resins and improve the quality of treated water in ammoni...
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WO/2006/126223A1 |
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 determined velocity and subsequently a first ...
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WO/2006/112960A2 |
The present disclosure generally relates to methods, systems, and devices for electrically purifying liquids containing species such as minerals, salts, ions, organics, and the like. One aspect of the invention provides methods of regene...
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WO/2006/110574A1 |
A method of regenerating N-Methyl-D-glucamine-functional resin that has been used for boron-removal uses a closed recirculating loop for treating the conjugate acid salt of the N-Methyl-D-glucamine functionality of the resin. The new met...
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WO/2006/097762A2 |
In a method and apparatus for operating and regenerating ion exchange material a wash fluid or elution solution for rinsing the ion exchange material (1) is prepared, there is collected as a by-product of said preparation a first waste s...
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WO/2006/099227A1 |
The invention provides a method for recovery of an anionic fluorinated surfactant from a basic anion exchange resin having quaternary ammonium groups, the method comprising eluting the anion exchange resin with a composition comprising a...
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WO/2006/096041A1 |
The inventive method for reconditioning a household ion-exchange cassette for filtering a drinking water and device for removing nitrates from drinking water relate to water filter cleaning and to cleaning, regenerating and disinfecting ...
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WO/2006/071256A2 |
Systems and methods for removing perchlorate load from ion exchange resin regeneration brines.
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WO/2006/066365A1 |
Device for treating water with a supply ( 3 ) ; a treatment tank (4) ; a drain (9) ; a regulator (13) ; and a bypass (22) which connects the supply (3) to the drain (9) , characterised in that in the main canalisation (2) , on either sid...
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WO/2006/063404A1 |
The invention provides a system and process for separating residual magnetic resin from a liquid stream by passing the stream through or over permanent magnets (30) located within the stream wherein the process also includes a means for ...
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WO/2006/049916A1 |
A water treatment system includes a tank that contains a particle bed for removing minerals from water flowing through the tank. The regeneration of the particle bed is conducted in response to measuring its conductivity. A probe is prov...
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WO/2006/042702A1 |
The invention relates to a method and corresponding plant for the hygienic operation of an ion exchanger (10), in particular, in water treatment, whereby the ion exchanger (10) is regenerated by a regenerating agent solution (14) during ...
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WO/2006/031768A1 |
An improved system of resins comprising a combination of a sulfate-specific strongly basic anion exchange resin and a heterogenous hybrid thermally regenerable salt sorbent (TRSS) resin is provided. The anion exchange resin contains trie...
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WO/2006/029478A2 |
A process for the treatment of an effluent stream from a pulp mill having one or more liquor streams and one or more recovery processes for recovering useful components from spent liquor, wherein the effluent stream is contacted with ani...
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WO2006006892A9 |
The invention relates to the chemical industry and can be used for extracting perchlorate ion form a highly concentrated processing solution having a complex nitrate-chloride-sulphate-iodate composition. The inventive method for extracti...
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WO/2006/010216A1 |
A process for the regeneration of loaded ion-exchange resin comprising (a) providing loaded resin for regeneration; (b) providing first stage and third stage regenerant suitable for regenerating loaded resin; (c) providing a plurality of...
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WO/2006/004269A1 |
Disclosed is a soft water washer capable of automatically regenerating ion exchange resin, said soft water washer comprising: a water supply tube for supplying water to the washer; a water supply valve for controlling water flow through ...
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WO/2005/105677A1 |
The invention relates to a process for the continuous regeneration of ion-exchange resin loaded with dissolved organic carbon ('DOC'), the process comprising providing a plurality of sequentially connected cells including a first cell an...
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WO2005080276B1 |
Biological nutrient removal (BNR) in municipal wastewater treatment to remove carbonaceous substrates, nutrients and phosphorus, has recently become increasingly popular worldwide due to increasingly stringent regulations. Biological flu...
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WO/2005/094994A1 |
This invention relates to an ion exchange resin reactor (10) and process to facilitate the continuous treatment of a solution containing target species ions by removing or recovering those ions from the solution onto ion exchange resin b...
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WO/2005/093410A1 |
Optical measuring equipment is provided for measuring concentration at a higher accuracy by providing an ion-exchange resin for pretreatment of a sample. The optical measuring equipment is provided with the ion-exchange resin and an opti...
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WO/2005/077535A2 |
A method and apparatus for purifying contaminated liquid. The apparatus includes an input line for receiving the contaminated water and a purifying material adapted to combine with undesirable components in the contaminated liquid so as ...
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WO/2005/078078A1 |
A process for producing lactoperoxidase, comprising the steps of (1) bringing a raw milk into contact with a cation exchanger having weakly acidic groups as ion exchange groups to thereby effect adsorption treatment; (2) washing the cati...
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WO/2005/075355A2 |
The present invention relates to a process for removal of ammonium from an ammonium-containing aqueous solution obtained by regenerating an ammonium-loaded ion exchange material (1) with an eluant liquid (2) comprising a chloride-contain...
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WO/2005/075359A1 |
An apparatus for forming ion-exchanged water which comprises an anode (1) and a cathode (2), and, between the anode (1) and the cathode (2), in the following order from the anode (1) side, an anode chamber (8), an anion exchange resin ch...
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WO/2005/075061A1 |
A brine recycling process forms a part of a water softening system. The water softening system has a brine tank (43) for receiving brine solution that has passed through the softening tank (19) of the system, preferably using pump (5), t...
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WO/2005/072482A2 |
A method for removing fluorine gas from a selected environment comprises contacting the fluorine gas with water to generate a solution of hydrofluoric acid and contacting the solution of hydrofluoric acid with an ion exchange resin havin...
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WO/2005/065265A2 |
A process of fluoride removal from wastewater streams produced during industrial operation for further industrial use or to comply with environmental regulations. The process segregates the removal of fluoride and fluorosilicate ions, fr...
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WO/2005/061082A1 |
A method for treating a fluid by providing raw fluid to a process tank, adding an ion exchange resin to the process tank to form a raw fluid/ion exchange resin mixture, removing treated fluid from the process tank through a membrane filt...
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WO/2005/044736A1 |
Disclosed is an automatic regenerable cold/hot water softener comprising a water softening tank having ion exchange resin and a regenerating tank filled with regenerating substance of the ion exchange resin. The water softener controls w...
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WO2005012192B1 |
Systems and methods for removing perchlorate load off of ion exchange resins are disclosed. The systems and methods rely upon direct contact between the resin and a liquid product formed by the culturing of perchlorate-destroying microor...
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WO/2005/016831A1 |
An apparatus (20) treats an influent solution (70) comprising ions to obtain a selectable ion concentration in an effluent solution (80). The apparatus (20) comprises an electrochemical cell (22) comprising a housing (25) comprising firs...
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WO/2005/009578A2 |
A method for the recovery of acids and other materials from hydrometallurgic process solutions comprising processing said solutions utilizing a simulated moving bed chromatographic method to produce at least two product streams.
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WO/2005/007582A1 |
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 reference cell (Rr) in a water tank (12) and a sp...
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WO/2005/005323A1 |
A method of reclaiming brine waste in a water softener having an inlet, a service water outlet, a wastewater outlet, and having a brine/rinse cycle in which brine solution is directed through a resin bed and to a drain, includes measurin...
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WO2002014850A9 |
An electrolytic process and apparatus are disclosed for continuously producing the cation conductivity, anion conductivity, and temperature data required for continuous monitoring of the pH of high-purity aqueous solution flows. The cati...
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WO/2004/103545A2 |
A processs for recycling waste regenerant (1) from a softening procedure in which a waste having monovalent cations and halide anions is provided. The waste regenaerant is passed through a column (2) of an ion exchange resin saturated wi...
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WO/2004/101443A1 |
The invention relates to a device for softening water. This device comprises a reservoir containing exchange resin. One reservoir area is subjected to a prestressing. If the content of the exchange resin changes, the change in volume is ...
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WO/2004/101147A1 |
According to the invention, cation exchangers that have been used to harden water are regenerated by means of an alkali metal salt selected from sodium acetate, potassium acetate, sodium dihydrogenphosphate, potassium dihydrogenphosphate...
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WO/2004/101148A1 |
A process for the regeneration of a deionisation substance is described. It comprises the steps of: providing a regenerant flow across the substance; providing a water rinse across the substance; providing at least one further regenerant...
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WO/2004/098776A1 |
The present invention relates to a method and apparatus for the continuous countercurrent desorption of targeted materials including metals, non-metals and inorganic and/or organic compounds of thereof, wherein the desorption method is d...
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WO/2004/094035A1 |
Disclosed is a water softener capable of producing soft water at various temperatures and facilitating the regeneration of an ion exchange resin thereof. The water softener includes a water softening tank in which an internal region cont...
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WO/2004/087586A1 |
A process for removing DOC (dissolved organic carbon) from a concentrated salt solution containing DOC by contacting the salt solution with a coagulant/flocculant such that the DOC becomes insoluble and removing the insoluble DOC from th...
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WO/2004/080900A1 |
An ion exchange process for removing arsenic from drinking water is disclosed which uses a mixed ion regenerant and generates minimal levels of waste.
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WO/2004/069369A2 |
A portable point-of-use water softener (101). Settings of a valve (119) put the water softener into three different modes: an “off” mode that excludes water from the water softener, a water softening mode, and a regeneration mode. In...
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WO/2004/067449A1 |
The RTB BOR-Majdanpek mine has been exploited for more than one hundred years so today we have a mine with extremely low concentration of copper (below 0,6 % per tonne). What we also have is 1500 km?2¿ of degraded area. Our wish is to f...
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WO/2004/058854A1 |
Acid impurities, such as carboxylic acid-terminated polymers, are removed from macrocyclic oligoesters with ion exchange resins, resulting in macrocyclic oligoesters that are substantially free of acid impurities. The ion exchange resins...
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WO/2004/056712A1 |
The present invention relates to a method for removing and recovering metal ions from various kinds of waste water to be treated. The method comprises an oxidizing agent removing apparatus for decomposing and removing an oxidizing agent ...
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