A swirler includes a base and one or more fins coupled to the base. The swirler also includes a distribution member configured to divert or guide fluid. In some implementations, the distribution member includes an annular member coupled to the base and positioned at least partially around the longitudinal axis. The swirler may be included in an adsorption column.

A system and method configured to restore ion exchange kinetic properties and purify resin is described. Degraded ion exchange kinetic properties of anion resin will eventually result in impurity slippage through resin charges. This system and method employs an acid catalyst in combination with sulfite cleaning solution to remove organic material and to protonate iron oxides for deconstruction and removal from anion resins. The cleaning solution, when applied via a cleaning vessel utilizing an eductor(s)/plenum and wedge-wire screen draw chamber, while controlling all phases of cleaning by electronic monitoring, yields complete restoration of ion exchange kinetics on usable resin. As such, the system and method provides a safe, effective, and vastly improved method for restoring anion resin kinetics and improving regeneration quality, for improved resin performance and minimizing resin replacement costs.

An ion exchanger includes a housing, a tube member, and an ion exchange resin. The housing includes an inlet port and an outlet port. The tube member is arranged inside the housing. The ion exchange resin is arranged between the tube member and the housing. A first flow passage and a second flow passage are formed in the housing. The first flow passage is configured to cause the coolant that has flowed in through the inlet port to flow directly to the outlet port. The second flow passage is configured to cause the coolant that has flowed in through the inlet port and passed through the ion exchange resin to flow to the outlet port. The first flow passage and the second flow passage are formed to join together in a state of being oriented in a same direction toward the outlet port.

An apparatus for pretreating an ion exchange resin includes at least a stock solution tank for storing a non-aqueous solvent, an ion exchange resin container accommodating an ion exchange resin, and a moisture removal apparatus for removing moisture in the non-aqueous solvent, and at least one solution feed pipe selected from: a circulating solution feed pipe for returning, to the stock solution tank, the non-aqueous solvent that has passed through the ion exchange resin container and the moisture removal apparatus in this order from the stock solution tank; and a circulating solution feed pipe for returning, to the stock solution tank, the non-aqueous solvent that has passed through the moisture removal apparatus and the ion exchange resin container in this order from the stock solution tank.

A water softener apparatus comprises two water softener tanks one of which is always operating, valves controlling the flow of water and a flow-meter, wherein, after a set volume of water has passed through one tank, water is passed through the other tank. The apparatus uses ion-exchange tanks which may be regenerated by brine when not softening hard water. The flow-meter preferably comprises an actuator which moves in a cyclic movement in response to the flow of a set quantity of water and actuates two service valves which send pressured water signals to a drain shuttle valve. The drain shuttle valve then diverts hard water from one tank to another and initiates regeneration of the first tank. A regeneration meter terminates the alternate regeneration of the two tanks. The regeneration meter is positioned in the apparatus of a point where brine for regeneration of the two water softener components is received into the apparatus.

An ion-exchange resin module and a deionization apparatus using same are proposed. An ion-exchange resin module may have the inside filled with ion-exchange resin and may be configured to have a pressing plate such that fluid in the ion-exchange resin is discharged. Multiple ion-exchange resin modules may be installed by being stacked in an inner space defined inside a tank of the deionization apparatus. A discharge pipe which passes through the lower end of the tank and extends to the upper end thereof may be installed in the inner space, the discharge pipe being located in a through duct which passes through the centers of the ion-exchange resin modules.

An ion-exchange resin module and a deionization apparatus using same are proposed. An ion-exchange resin module may have the inside filled with ion-exchange resin and may be configured to have a pressing plate such that fluid in the ion-exchange resin is discharged. Multiple ion-exchange resin modules may be installed by being stacked in an inner space defined inside a tank of the deionization apparatus. A discharge pipe which passes through the lower end of the tank and extends to the upper end thereof may be installed in the inner space, the discharge pipe being located in a through duct which passes through the centers of the ion-exchange resin modules.

In one embodiment, a system of PFAS (Per-Poly-fluorinated alkyl substances) effluent liquid treatment includes: a pump to pump a liquid received via an intake; a sediment filter to filter sediment from the liquid; a granular activated carbon (GAC) device, disposed downstream of the sediment filter, to remove organic contaminants from the liquid; one (preferably two) or more ion exchange resin columns, disposed downstream of the GAC device, to remove PFAS constituents from the liquid; and a plurality of control valves being controlled to direct the liquid to flow along one or more liquid flow paths through the ion exchange resin columns so as to adjust a rate of processing the liquid by the one or more ion exchange resin columns. The system is disposed in a shipping container to be transported to a destination and is set up in the container onsite at the destination.

In one embodiment, a system of PFAS (Per-Poly-fluorinated alkyl substances) effluent liquid treatment includes: a pump to pump a liquid received via an intake; a sediment filter to filter sediment from the liquid; a granular activated carbon (GAC) device, disposed downstream of the sediment filter, to remove organic contaminants from the liquid; one (preferably two) or more ion exchange resin columns, disposed downstream of the GAC device, to remove PFAS constituents from the liquid; and a plurality of control valves being controlled to direct the liquid to flow along one or more liquid flow paths through the ion exchange resin columns so as to adjust a rate of processing the liquid by the ion exchange resin columns. Directing the flow takes into consideration factors including any minimum rate of processing, any maximum amount of waste generation, and any target remaining PFAS contamination in the liquid after processing.

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.