Methods, sorbent cartridges and cleaning devices are disclosed for refurbishing sorbent materials. In one implementation among multiple implementations, a medical fluid delivery method includes: providing a sorbent cartridge including H.sup.+ZP within a casing for a treatment; and after the treatment, refurbishing the H.sup.+ZP while maintained within the casing via (i) regenerating the non-disinfected H.sup.+ZP by flowing an acid solution through the casing, (ii) rinsing the regenerated H.sup.+ZP while maintained within the casing, (iii) disinfecting the regenerated and rinsed H.sup.+ZP by flowing a disinfecting agent through the casing, and (iv) rinsing the regenerated and disinfected H.sup.+ZP while maintained within the casing. Multiple batch sorbent refurbishing implementations are also disclosed.

Methods, sorbent cartridges and cleaning devices are disclosed for refurbishing sorbent materials. In one implementation among multiple implementations, a medical fluid delivery method includes: providing a sorbent cartridge including H.sup.+ZP within a casing for a treatment; and after the treatment, refurbishing the H.sup.+ZP while maintained within the casing via (i) regenerating the non-disinfected H.sup.+ZP by flowing an acid solution through the casing, (ii) rinsing the regenerated H.sup.+ZP while maintained within the casing, (iii) disinfecting the regenerated and rinsed H.sup.+ZP by flowing a disinfecting agent through the casing, and (iv) rinsing the regenerated and disinfected H.sup.+ZP while maintained within the casing. Multiple batch sorbent refurbishing implementations are also disclosed.

The present invention relates to a bipolar ion exchange sheet and a manufacturing method therefor, the bipolar ion exchange sheet comprising: a cation exchange film comprising a cation adsorption sheet and a cation exchange coating layer formed on one side of the cation adsorption sheet; and an anion exchange film comprising an anion adsorption sheet and an anion exchange coating layer formed on one side of the anion adsorption sheet, wherein the cation exchange film and the anion exchange film are bonded so that the cation exchange coating layer and the anion exchange coating layer face each other.

The present invention relates to recovery of lithium from liquid resources to produce lithium solutions while limiting impurity precipitation in the lithium solutions.

Provided is a resin composition comprising (a) a collection of resin beads, wherein the collection of resin beads has pH of 8 or above, and wherein the collection of resin beads has volume average diameter of 150 μm to 2,000 μm; and (b) a collection of inorganic particles, wherein the inorganic particles contain one or more alkaline earths, and wherein the collection of inorganic particles has volume average diameter of 0.5 μm to 50 μm. Also provided is a method of processing an aqueous composition using such a composition.

Provided is a resin composition comprising (a) a collection of resin beads, wherein the collection of resin beads has pH of 8 or above, and wherein the collection of resin beads has volume average diameter of 150 μm to 2,000 μm; and (b) a collection of inorganic particles, wherein the inorganic particles contain one or more alkaline earths, and wherein the collection of inorganic particles has volume average diameter of 0.5 μm to 50 μm. Also provided is a method of processing an aqueous composition using such a composition.

Provided is a particulate composition comprising a collection of resin beads and LiX.2Al(OH).sub.3.nH.sub.2O, wherein n is 0 to 10, wherein X is a halogen, wherein the resin beads contain polymer having 0.5 to 3 equivalents of amine pendant groups per liter of the particulate composition, wherein the resin beads have average pore diameter of 5 to 100 nm, wherein the collection of resin beads has harmonic mean particle diameter of 200-1000 micrometers; wherein the collection of resin beads has surface area of 20 to 150 m.sup.2/g; and wherein aluminum is present in an amount of 14.5% percent or higher, by weight of aluminum atoms based on the total weight of the particulate composition. Also provided is a method of removing lithium from brine using such a composition.

The present invention relates to recovery of lithium from liquid resources to produce lithium solutions while limiting impurity precipitation in the lithium solutions.

Process for the preparation of particles with antibacterial coating, which comprises the following steps: (a) providing an aqueous suspension containing a polyamine, a crosslinker and a porous organic or inorganic carrier material in particle form at a temperature lower than or equal to 10° C. in a mixer for coating the inorganic carrier material with the polyamine; (b) crosslinking the organic polymer in the pores of the inorganic carrier material and simultaneously removing water.

A method of producing treated ion exchange resin material includes exposing an enclosed vessel containing ion exchange resin and a pre-treatment solution to high energy radiation. The treated ion exchange resin material has reduced organic impurities or total organic carbon (TOC).