Class / Patent application number | Description | Number of patent applications / Date published |
210677000 | Using conserved or recirculated fluid | 7 |
20090020478 | 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 acid solution to regenerate the anion exchanger. | 01-22-2009 |
20090071906 | REGENERATION OF WATER TREATMENT SUBSTRATES - In a method and apparatus for operating and regenerating ion exchange material a wash fluid or elution solution for rinsing the ion exchange material ( | 03-19-2009 |
20130175221 | ELECTRICALLY REGENERABLE WATER SOFTENING APPARATUSES AND METHODS OF OPERATING THE SAME - Electrically regenerable water softening apparatuses, and methods of operating the same, include a first electrode and a second electrode facing each other; a first electrolyte chamber, a first cation exchange membrane, an ion exchange chamber, a second cation exchange membrane, and a second electrolyte chamber which are interposed between the first electrode and the second electrode; an inflow water flow channel configured to introduce inflow water to the ion exchange chamber; a first treated water flow channel configured to discharge treated water softened in the ion exchange chamber; a second treated water flow channel connecting at least one chamber selected from the first electrolyte chamber and the second electrolyte chamber with an ion exchange chamber; and a current applier configured to apply current to the first electrode and the second electrode. The ion exchange chamber is filled with a cation exchanger. | 07-11-2013 |
20140076817 | Method and System for Treating Produced Water - Embodiments of the present invention provide systems and methods for purifying produced water, comprising a closed loop cation exchange unit, a closed loop anion exchange unit, and an intermediate degasifier. | 03-20-2014 |
20150096940 | 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 species. | 04-09-2015 |
20150315038 | ELECTROCHEMICAL CELLS FOR SUPPLY OF ACID WATER - Provided are water treatment systems where acid water from electrochemical devices are provided to waste streams of ion reduction devices. Specifically, electro-chemical cells having strong acid cation resins are operated to produce acid water that is supplied to the waste stream of an aqueous separation unit, for example an ion reduction device that includes, but it not limited to: deionization systems, conntinuous or batch-wise, and reverse-osmosis systems. | 11-05-2015 |
20150360974 | BROMIDE RECOVERY FROM AQUEOUS STREAMS - The invention relates to a process for recovering bromide from a halide-containing aqueous stream, comprising the steps of: providing a feed of halide-containing aqueous stream; contacting an anion-exchange resin with said feed, to form halide-loaded resin; treating said halide-loaded resin with a regenerant and subsequently with a rinse to produce, in succession, a chloride-rich solution, a mixed chloride/bromide solution, a bromide-rich solution and an essentially halide-free solution; directing said mixed chloride/bromide solution to said feed; processing said bromide-rich solution to recover one or more bromide products; and utilizing said essentially halide-free solution for regenerant dilution and/or rinsing of said resin. An apparatus for carrying out the process is also disclosed. | 12-17-2015 |