Abstract:
A system and method for water purification by capture of contaminants in an aqueous mixture is described herein. A system and method for regenerating the capture system is also described. An integrated capture and regeneration system and method is also described including a separation vessel that houses a capture bed and optionally an electrode in electrical contact with the bed with a power source for applying a voltage to the electrode. The applied voltage enhances capture of the contaminant from aqueous liquid on the capture bed and modulation of the applied voltage enhances release of contaminant on the capture bed into aqueous wash liquid to regenerate the bed. The aqueous wash liquid may contain a counter ion that binds to the contaminant forming an aggregate contaminant phase that separates from the aqueous wash liquid.
Abstract:
Described herein are processes and apparatus for the high purity and high concentration recovery of multivalent products via continuous ion exchange from aqueous solutions for further down-stream purification.
Abstract:
A fluid treatment device includes a tank containing a fluid treatment medium and a fluid. A distributor plate is received in the tank and separates the bed from a lower end portion of the tank. A baffle is positioned beneath the distributor plate and is configured to direct fluid exiting a riser tube of the fluid treatment device toward the peripheral of the tank to thereby provide a more evenly-distributed flow through the radius of the distributor plate and through the fluid treatment medium. The baffle may have a downwardly facing concave surface that traps air bubbles generated during a brine draw operation.
Abstract:
A filtration and demineralization apparatus 10 including a vessel 20 in a form of a body of revolution; a hollow columnar body 40 that is located in an internal space of the vessel 20, one end 40a of the columnar body being connected to an inner surface of the vessel 20 along an entire circumference of the end, and the other end 40b of the columnar body forming an opening; and a partition plate 44 that is connected to the other end 40b of the hollow columnar body along an entire circumference of the other end 40b, the partition plate being configured to separate an inside space or an outside space of the hollow columnar body 40 as an independent space in the vessel. The partition plate 44 has a circulation port 43 that allows water that is to be treated to pass therethrough. The independent space in the vessel that is separated by the partition plate functions as a filtration chamber 41 in which filter elements are loaded, and the inside space or the outside space of the hollow columnar body that is not separated as the independent space by the partition plate functions as a demineralization chamber 22, the water that was treated in the filtration chamber being adapted to enter the demineralization chamber through the circulation port 43.
Abstract:
A quick, economical and environmentally friendly, “green”, process for the continuous purification of biodiesel (fatty acid alkyl esters (FAAE)) is described using a powdered, granulated or extruded adsorbent. The adsorbent is contained in a column system and is regenerated for reuse multiple times. The process employs an adsorbent such as, but not limited to, carbon, silica, clay, zeolite or a metal silicate contained in a column to remove the impurities from fatty acid alkyl esters (FAAE) or crude biodiesel in a continuous process. The process utilizes the adsorbent column system for the purification of biodiesel, rather than water or filtration, to remove soaps and other impurities entrained in a crude biodiesel. The crude biodiesel is contacted with an adsorbent packed into a column, or multiple columns in series, for a sufficient amount of time to remove impurities such as, but not limited to, soaps, metals, free glycerin, sterol glucosides and many of the other impurities that reduce the stability of biodiesel. The resulting finished biodiesel exiting the column(s) is ready for the methanol recovery process. Once the adsorbent no longer removes the desired amount of impurities, it is regenerated for reuse. The solvent used for the regeneration process is reclaimed and reused by recycling it back to the transesterification reaction.
Abstract:
The present invention relates to a liquid distribution or collection device for a vessel containing material to which the liquid is to be delivered, the device having a plurality of conduits extending from a liquid transport channel, in which at least one said conduit comprises a proximal end in communication with the liquid transport channel, a distal end remote from the liquid transport channel and, between said proximal and distal ends, a multiplicity of spaced apertures for passage of liquid, wherein a distal region of the conduit has a cross-sectional area d2 that is smaller than the cross-section area d1 in a proximal region of the conduit. The present invention also relates to an ion exchange or filtration vessel comprising said device and a method of distributing a fluid onto a substrate in a vessel using said device.
Abstract:
The disclosed invention is a fixed bed ion exchange water purification system. It employs a combination of electronically controlled process steps and specific systems configurations to duplicate the effects of moving resin beds from one operating position to another as is required in moving bed ion exchange water purification systems. The invention combines features of single fixed bed ion exchange systems with those of a moving bed system. The invention applies to the treatment of water having typical industrial and drinking water concentrations of various ions.
Abstract:
The disclosed invention is a fixed bed ion exchange water purification system. It employs a combination of electronically controlled process steps and specific systems configurations to duplicate the effects of moving resin beds from one operating position to another as is required in moving bed ion exchange water purification systems. The intention combines features of single fixed bed ion exchange systems with those of a moving bed system. The invention applies to the treatment of water having typical industrial and drinking water concentrations of various ions.
Abstract:
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 regenerating media within an electrical purification device, for example, exposing the media to one or more eluting solutions, and/or selectively desorbing ions, organics, and/or other species from the media by exposing the media to certain eluting conditions. In yet another aspect, methods of selectively removing one or more ions, organics, and/or other species from a liquid to be purified are provided, e.g., by selective removal of one or more ions, or organics, and the like from solution that can easily precipitate, and/or cause scaling or fouling to occur. In still another aspect, the invention provides a method of treating a solution containing ions, organics, and/or other species using an electrical purification apparatus in a continuous or semi-continuous fashion, while also performing regeneration of media contained within the apparatus.
Abstract:
The disclosed invention is a fixed bed ion exchange water purification system. It employs a combination of electronically controlled process steps and specific systems configurations to duplicate the effects of moving resin beds from one operating position to another as is required in moving bed ion exchange water purification systems. The intention combines features of single fixed bed ion exchange systems with those of a moving bed system. The invention applies to the treatment of water having typical industrial and drinking water concentrations of various ions.