Abstract:
Method implementing resins for treating organic compounds in industrial wastewaters, said method comprising the steps of: during treatment cycles, pumping an industrial wastewater into a reactor containing an ion-exchange resin, letting said organic compounds being captured onto said resin and obtaining a treated wastewater at an outlet of said reactor; during regeneration cycles for restoring removal capacity of said resin, stopping said pumping of said industrial wastewater into said reactor, pumping a regeneration liquid into said reactor, letting said regeneration liquid desorb the organic compounds captured onto the resin, and obtaining an eluate containing said desorbed organic matter; recycling said eluate for using it as said regeneration liquid, characterized in that said resin is a strong base anionic ion exchange resin, and said regeneration liquid is an hypersaline solution.
Abstract:
Metal organic resins, composite materials composed of the metal organic resins, and anion exchange columns packed with the composite materials are provided. Also provided are methods of using the composite materials to remove metal anions from a sample, methods of using the metal organic resins as fluorescence sensors for detecting metal anions in a sample, and methods of making the metal organic resins and the composite materials. The metal organic resins are amine-functionalized metal organic frameworks and their associated counter anions. The composite materials are composed of metal organic resin particles coated with organic polymers, such as alginic acid polymers.
Abstract:
A two-step chromatography purification scheme is described which selectively captures and isolates the genome-containing rAAV vector particles from the clarified, concentrated supernatant of a rAAV production cell culture. The process utilizes an affinity capture method performed at a high salt concentration followed by an anion exchange resin method performed at high pH to provide rAAV vector particles which are substantially free of rAAV intermediates.
Abstract:
Methods for the removal of ionic contaminants from a hydrophilic organic solvent by a mixed bed of ion exchange resins are described. A mixed bed of ion exchange resins with gel-type strong-acid cationic ion exchange resin with a specific moisture holding capacity and gel-type anionic ion exchange resin is used in some embodiments of such methods.
Abstract:
A method as described herein may include contacting a fluid with a single resin to cause the single resin to bond to nitrates and perchlorates contained in the fluid. The method may regenerate the single resin by a regeneration process comprising contacting the single resin with a salt solution, wherein regenerating removes a substantial portion of the nitrates contained within the single resin but does not remove a substantial portion of the perchlorates contained within the single resin, wherein the single resin comprises a nitrate-specific resin and does not comprise a perchlorate-specific resin.