A sorbent cartridge device and a dialysis system comprising a dialysate generation machine dialysate generation machine, a pump adapted to move fluid through the dialysate generation machine, and a sorbent cartridge are described. The sorbent cartridge device fluidically connected to the dialysate generation machine. The sorbent cartridge device includes a housing defining a housing interior, a fluid coupling attached to the housing and configured to fluidically connect at least one fluid line to the housing interior, a baffle attached to a bottom of the housing interior and fluidically connected to the housing interior, the baffle configured to direct fluid flow entering the baffle radially and circumferentially, and a fluid accumulation module attached at the top of the housing and fluidically connected to the housing interior, the fluid accumulation module configured to direct fluid flow entering the fluid accumulation module from a bottom surface of the fluid accumulation module towards a center port of the module.

Methods and devices for providing dialysis treatment are provided. The device comprises a cartridge for providing regenerative dialysis, the cartridge comprising: a body having an inlet and an outlet and defining an interior, the interior including at least a layer comprising urease, a layer comprising zirconium oxide, a layer comprising zirconium phosphate, and a layer comprising carbon, wherein at least two of the layers are blended together to provide a gradient of the two materials.

Methods and devices for providing dialysis treatment are provided. The device comprises a cartridge for providing regenerative dialysis, the cartridge comprising: a body having an inlet and an outlet and defining an interior, the interior including at least a layer comprising urease, a layer comprising zirconium oxide, a layer comprising zirconium phosphate, and a layer comprising carbon, wherein at least two of the layers are blended together to provide a gradient of the two materials.

An ultra-thin anion exchange membrane incorporates functional additives to provide improved water management. Without the functional additives the ultra-thin membrane may have high cross-over and not be effective for many applications. A composite anion exchange membrane includes a porous scaffold support such as a porous polymer. The anion exchange polymer may be coupled to the porous scaffold, such as by being imbibed into the pores of the porous scaffold. The functional additives may contribute to increase water production, water retention, back-diffusion and reduce the gas crossover. A functional additive may include a reactive species, including a catalyst that reacts with oxygen or hydrogen, a plasticizer, a hygroscopic material and/or a radical scavenger.

An ultra-thin anion exchange membrane incorporates functional additives to provide improved water management. Without the functional additives the ultra-thin membrane may have high cross-over and not be effective for many applications. A composite anion exchange membrane includes a porous scaffold support such as a porous polymer. The anion exchange polymer may be coupled to the porous scaffold, such as by being imbibed into the pores of the porous scaffold. The functional additives may contribute to increase water production, water retention, back-diffusion and reduce the gas crossover. A functional additive may include a reactive species, including a catalyst that reacts with oxygen or hydrogen, a plasticizer, a hygroscopic material and/or a radical scavenger.

In one aspect, separation media are described herein operable for removing one or more water contaminants, including NOM, fluorinated chemicals, and/or derivatives thereof. Briefly, a separation medium comprises a silica-containing granular support; and an oligomeric stationary phase forming a film on individual grains of the granular support. In some embodiments, the oligomeric stationary phase comprises oligomeric chains covalently bound to the individual grains.

In one aspect, separation media are described herein operable for removing one or more water contaminants, including NOM, fluorinated chemicals, and/or derivatives thereof. Briefly, a separation medium comprises a silica-containing granular support; and an oligomeric stationary phase forming a film on individual grains of the granular support. In some embodiments, the oligomeric stationary phase comprises oligomeric chains covalently bound to the individual grains.

A magnetic strong base anion exchange resin with high mechanical strength and a preparation method thereof, belonging to the field of resin materials. The preparation method comprises steps of: adding a conventional strong base anion exchange resin to a mixture of trivalent iron salt and divalent iron salt, and then mixing the resin adsorbed with the iron salt with aqueous ammonia so that Fe.sub.3O.sub.4 nanoparticles are contained in the resin structure. Then, the resin containing Fe.sub.3O.sub.4 nanoparticles is added to alcoholic solution dissolved with silane coupling agent to form a dense SiO.sub.2 coating on the surface of the resin, so as to obtain magnetic strong base anion exchange resin with high mechanical strength.

A magnetic strong base anion exchange resin with high mechanical strength and a preparation method thereof, belonging to the field of resin materials. The preparation method comprises steps of: adding a conventional strong base anion exchange resin to a mixture of trivalent iron salt and divalent iron salt, and then mixing the resin adsorbed with the iron salt with aqueous ammonia so that Fe.sub.3O.sub.4 nanoparticles are contained in the resin structure. Then, the resin containing Fe.sub.3O.sub.4 nanoparticles is added to alcoholic solution dissolved with silane coupling agent to form a dense SiO.sub.2 coating on the surface of the resin, so as to obtain magnetic strong base anion exchange resin with high mechanical strength.

Provided is a method of treating water comprising bringing water that contains dissolved chromium (VI) into contact with an anion exchange composition comprising (a) polymeric beads having covalently bound amine groups, and (b) tin (II) oxide.