Patent application number | Description | Published |
20100133115 | DEVICES AND METHODS FOR ACID AND BASE GENERATION - Electrochemical devices and methods for acid and base generation are disclosed. A source of purified water is fluidly connected to at least one compartment of the device. A source of an ionic species, such as an acid or base precursor, is also provided to at least one compartment of the device. An applied electrical field promotes ion transport across selective membranes which at least partially define the compartments. The purified water may be dissociated into hydronium and hydroxyl ions in an electrolyzing compartment of the device. Acid and/or base product streams may be recovered as desired at outlets of the various compartments. In some embodiments, a bipolar membrane may be used to split water in place of the electrolyzing compartment. | 06-03-2010 |
20100213066 | LOW SCALE POTENTIAL WATER TREATMENT - An electrochemical treating device having low scale potential is disclosed. The device has a variety of configurations directed to the layering of the anionic exchange and cationic exchange. The treatment device can also comprise unevenly sized ion exchange resin beads and/or have at least one compartment that provides a dominating resistance that results in a uniform current distribution throughout the apparatus. | 08-26-2010 |
20110162964 | SYSTEMS AND METHODS FOR WATER TREATMENT - Electrochemical devices and methods for water treatment are disclosed. An electrodeionization device ( | 07-07-2011 |
20120117789 | Methods of Making a Cell Stack for an Electrical Purification Apparatus - An electrical purification apparatus and methods of making same are disclosed. The electrical purification apparatus may provide for increases in operation efficiencies, for example, with respect to current efficiencies and membrane utilization. | 05-17-2012 |
20120118728 | ELECTRICAL PURIFICATION APPARATUS HAVING A BLOCKING SPACER - An electrical purification apparatus and methods of making same are disclosed. The electrical purification apparatus may provide for increases in operation efficiencies, for example, with respect to current efficiencies and membrane utilization. | 05-17-2012 |
20120118743 | ELECTRICAL PURIFICATION APPARATUS - An electrical purification apparatus and methods of making same are disclosed. The electrical purification apparatus may provide for increases in operation efficiencies, for example, with respect to current efficiencies and membrane utilization. | 05-17-2012 |
20130008858 | Systems and Methods for Process Stream Treatment - Systems and methods for process stream treatment. The treatment system may generally include an oxidation unit coupled to a downstream demineralization unit. The oxidation unit may oxidize organic and reduced sulfur contaminants in the process stream to facilitate downstream treatment. The demineralization unit may convert a product of the oxidation unit to generate a mineral stream. In some examples, the process stream may be a spent caustic stream from an industrial operation, such as an ethylene production facility or a petroleum refinery. A fresh caustic stream, such as a sodium hydroxide stream, may be isolated in the demineralization step and returned to the industrial operation for use. | 01-10-2013 |
20130126355 | LOW SCALE POTENTIAL WATER TREATMENT - An electrochemical treating device having low scale potential is disclosed. The device has a variety of configurations directed to the layering of the anionic exchange and cationic exchange. The treatment device can also comprise unevenly sized ion exchange resin beads and/or have at least one compartment that provides a dominating resistance that results in a uniform current distribution throughout the apparatus. | 05-23-2013 |
20130264208 | SYSTEMS AND METHODS FOR WATER TREATMENT - Electrochemical devices and methods for water treatment are disclosed. An electrodeionization device ( | 10-10-2013 |
20140115877 | METHODS OF MAKING A CELL STACK FOR AN ELECTRICAL PURIFICATION APPARATUS - An electrical purification apparatus and methods of making same are disclosed. The electrical purification apparatus may provide for increases in operation efficiencies, for example, with respect to current efficiencies and membrane utilization. | 05-01-2014 |
20140183045 | Electrodesalination System and Method - Systems and methods for the desalination of seawater or brackish water for the purpose of obtaining potable water. Systems may include a combination of electrodialysis and electrodeionization modules. The system configuration and process controls may achieve low energy consumption and stable operation. | 07-03-2014 |