A device for purifying drinking water in multiple stages by combining orthogonal purification technologies in one module is described, where the device comprises a housing, a water inlet opening, a water outlet opening, a hollow cylinder which is filled with activated carbon, and a hollow cylinder with a semipermeable wall, wherein the hollow cylinder contains a chelating bactericidal gel or a chelating and bactericidal gel for removing heavy metals or bacteria or for removing heavy metals and bacteria.

The present invention relates to the extraction of lithium from liquid resources such as natural and synthetic brines, leachate solutions from clays and minerals, and recycled products with the assistance of an alternate phase.

The present invention relates to the extraction of lithium from liquid resources such as natural and synthetic brines, leachate solutions from clays and minerals, and recycled products with the assistance of an alternate phase.

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.

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.

A cleaning system configured to clean and regenerate resin is disclosed, including a vessel and a draw chamber having a separation screen disposed inside the bottom of the vessel. The system also includes an eductor, a plenum discharging at the top of the vessel, and a fouled/exhausted resin. The system includes a first resin regeneration chemical flowing into the vessel, and a sulfite solution circulating through the eductor into the vessel along with the resin. The system includes a scrubber module having at least one helical pathway having a conduit rotating about and propagating along an axis with a pitch. The helical pathway includes a pathway inlet in fluid communication with the bottom of the vessel and a pathway outlet in fluid communication with the top of the vessel. Resin is recirculated throughout the vessel as the separation screen and the sulfite solution work together to clean the resin.

A cleaning system configured to clean and regenerate resin is disclosed, including a vessel and a draw chamber having a separation screen disposed inside the bottom of the vessel. The system also includes an eductor, a plenum discharging at the top of the vessel, and a fouled/exhausted resin. The system includes a first resin regeneration chemical flowing into the vessel, and a sulfite solution circulating through the eductor into the vessel along with the resin. The system includes a scrubber module having at least one helical pathway having a conduit rotating about and propagating along an axis with a pitch. The helical pathway includes a pathway inlet in fluid communication with the bottom of the vessel and a pathway outlet in fluid communication with the top of the vessel. Resin is recirculated throughout the vessel as the separation screen and the sulfite solution work together to clean the resin.

An ion exchanger filter assembly to be flowed through by liquid to be filtered has at least two ion exchanger units, each provided with a housing with an inlet socket and an outlet socket. An inlet-side fluid connection and an outlet-side fluid connection connect the ion exchanger units to each other. The inlet sockets are connected in fluid communication to the inlet-side fluid connection and the outlet sockets to the outlet-side fluid connection. The ion exchanger units are arranged to provide parallel flow along a flow path. Each flow path has a section through the inlet-side fluid connection, a section through the ion exchanger unit, and a section through the outlet-side fluid connection for uniform flow therethrough. Either all flow paths have a same length or have a same flow resistance. A connection pipe for such a filter assembly.

An ion exchanger filter assembly to be flowed through by liquid to be filtered has at least two ion exchanger units, each provided with a housing with an inlet socket and an outlet socket. An inlet-side fluid connection and an outlet-side fluid connection connect the ion exchanger units to each other. The inlet sockets are connected in fluid communication to the inlet-side fluid connection and the outlet sockets to the outlet-side fluid connection. The ion exchanger units are arranged to provide parallel flow along a flow path. Each flow path has a section through the inlet-side fluid connection, a section through the ion exchanger unit, and a section through the outlet-side fluid connection for uniform flow therethrough. Either all flow paths have a same length or have a same flow resistance. A connection pipe for such a filter assembly.

Disclosed are a method for preparing a Schiff base-modified ionic framework material and use thereof in advanced purification of .sup.177Lu-containing medical wastewater, including: using a conventional sponge as a substrate material and employing the Schiff base reaction principle with an amine-based reagent as a bridge and an aldehyde-based reagent as an active excitation reaction monomer to prepare an amino acid-based metal ionic Schiff base-modified ionic framework material by a one-pot synthesis method; and packing the Schiff base-modified ionic framework material in a chromatographic column for the advanced purification of the .sup.177Lu-containing medical wastewater. The material preparation process of this disclosure is simple with stable performance, and the functionalized modified material possesses ion exchange functionality, exhibiting superior adsorption performance for metal cations. Furthermore, the combined process method of this disclosure demonstrates good treatment effects on the .sup.177Lu-containing medical wastewater.