Patent application number | Description | Published |
20080277289 | WASTEWATER AMMONIUM EXTRACTION AND ELECTROLYTIC CONVERSION TO NITROGEN GAS - A new system is disclosed for extracting ammonia from a wastewater stream, and for transferring the ammonia into the secondary water circuit, where the dissolved ammonium is electrolysed and transformed into gaseous nitrogen. The new system makes use of a membrane of gas-permeable hydrophobic material. The wastewater is raised to pH of 11, and 50° C., to make the transfer of ammonia through the membrane more efficient. | 11-13-2008 |
20100011907 | EXTRACTION OF METALS FROM SULPHIDE MINERALS - Nickel entrained in the sulphide mineral pyrrhotite is engineered to dissolve in leaching acid in a two step procedure. First, a slurry of the mineral and the acid is activated by oxidation. This is done in a time T | 01-21-2010 |
20110240472 | CAPACITIVE DEIONIZATION CELL WITH THROUGH-FLOW - The electrodes of the described CDI cell are porous and permeable. The liquid to be deionized (e.g. salt water to be desalinated) flows through the electrodes. The electrodes are arranged in a stack, alternating anode/cathode, and water being treated passes through every electrode in the whole stack. For regeneration, the cells are connected (short-circuited) together, and the ions are dislodged mainly by flushing action. The through-flow arrangement can be realized in a number of different configurations. | 10-06-2011 |
20110240474 | CAPACITIVE DEIONIZATION CELL WITH RADIAL FLOW - A water treatment apparatus comprising a stack of circular electrodes with a central through hole, the electrodes are supplied with electricity so as to form anodes and cathodes in alternating intercalation. The anodes and cathodes so arranged to lie in such close-spaced parallel face to face relationship as to form a capacitive deionization cell. Water to be treated is passed from the outside of the stack, radially inward through between the electrodes into the central through hole and then axially out of the stack. | 10-06-2011 |
20120247959 | THROUGH-FLOW CAPACITIVE DEIONIZATION CELL - The capacitive electrodes of the CDI cell are arranged to form a tube. Water to be treated flows through the tube-walls. The CDI electrodes are permeable, and form the tube-walls, whereby the flow passes through the thicknesses of the electrodes and of the spacers. The electrodes may be in the form of concentric tubes, or may be wrapped spirally. | 10-04-2012 |
20120247973 | WASTEWATER AMMONIUM EXTRACTION AND ELECTROLYTIC CONVERSION TO NITROGEN GAS - Ammonium is removed from wastewater and transferred into a secondary water circuit. There, the ammonia is oxidized to nitrogen gas in an electrolytic cell. Disclosed is a process-control procedure for minimizing the electricity supplied to the cell, and for ensuring destruction of ammonia down to desired levels. The procedure involves taking pH-readings of the secondary water, and using those pH-readings to determine ammonia levels, and to determine the need for electricity usage to be stepped up or down, and to establish relationships between pH and the progress of the ammonium disposal treatment. The procedure can be used with diverse ways of transferring the ammonia from the wastewater to the secondary water, and with continuous or batch treatment. Instruments for measuring ammonia-concentration directly are expensive, whereas pH-sensors are simple, reliable, and responsive. | 10-04-2012 |
20120298153 | WASHING APPLIANCE WITH DEDICATED WATER-SOFTENER - The softener is based on a capacitive-deionization (CDI) cell, in which the hardness ions are extracted, and disposed of still intact, in concentrated form. The softener is combined with a chelate to inhibit precipitation, in the appliance, from the concentrated effluent. The chelate being citric acid, the acidity is effective to keep the hardness ions in solution. The purify and regenerate modes of operation of the softener can be timed to coincide with the washing and rinsing cycles of the appliance, whereby the presence of the softener does not affect the speed and performance of the appliance. | 11-29-2012 |
20140069814 | FLOWPATHS IN CDI CELL - In a capacitive deionization water desalination apparatus, the waterways of the cell are physically switchable between treatment-phase and purge-phase. In treatment-phase, the waterways conduct the flow of water thickness-wise, in-series, through the whole stack of electrodes and spacers. In purge-phase, the waterways conduct the flow of purge-water into the edges of the spacers, and along the spacers parallel to the plane of the spacers. | 03-13-2014 |
Patent application number | Description | Published |
20110044901 | NOVEL COMPOUNDS - The present invention is directed to sulphated compounds comprising at least one glycosidic amine group, and polysaccharide, oligosaccharide, peptide and protein derivatives comprising such compounds, and mixtures thereof. The present invention is also directed to methods of synthesising such compounds. Such compounds may bind to a range of proteins, find application in methods of modifying, or testing for a modification in the level of a cytokine in vivo, ex vivo or in vitro, and find application in the treatment and/or prevention of inflammation, an inflammatory disorder, a proliferative disorder, an immune disorder, an angiogenesis-dependent disorder, a sensitivity disorder, an adverse endocrine reaction, a degenerative disorder, wound healing, depression, and other diseases and disorders. | 02-24-2011 |