A reclaiming method is disclosed including conducting evaporation by introducing a part of the absorbent to recover CO.sub.2 or H.sub.2S in a gas in a closed system recovery unit and separating a degraded substance contained in the absorbent from the absorbent to be introduced into an evaporator and obtain recovery steam containing an absorbent and CO.sub.2 or H.sub.2S by a heating section that is provided on a circulation line that circulates in the evaporator; and removing ionic degraded substance by cooling the concentrate obtained in the evaporation and removing an ionic degraded substance in the concentrate after the cooling, wherein a purified concentrate from which the ionic degraded substance has been removed is reused as a purified absorbent.

A reclaiming method is disclosed including conducting evaporation by introducing a part of the absorbent to recover CO.sub.2 or H.sub.2S in a gas in a closed system recovery unit and separating a degraded substance contained in the absorbent from the absorbent to be introduced into an evaporator and obtain recovery steam containing an absorbent and CO.sub.2 or H.sub.2S by a heating section that is provided on a circulation line that circulates in the evaporator; and removing ionic degraded substance by cooling the concentrate obtained in the evaporation and removing an ionic degraded substance in the concentrate after the cooling, wherein a purified concentrate from which the ionic degraded substance has been removed is reused as a purified absorbent.

A method for removing a contaminant from a fluid is provided. A positively charged layered double hydroxide is combined with a negatively charged clay material to form adsorption material. The adsorption material is contacted with an aqueous solution containing the contaminant to adsorb the contaminant onto the adsorption material.

A magnet positioning system for positioning magnets inside pipes includes a first stackable paddle that includes slots for accepting magnets and a second stackable paddle that includes a metal component for attracting the magnets and securing the magnets in the slots when the paddles are stacked together. Once stacked together, the paddles are inserted into position inside a pipe and the metal component is removed to release the magnets which move toward, and attach to, the inside wall of the pipe. A fluid conduit is positioned between the magnets using a spacer and a fixing agent permanently secures the magnets, fluid conduit, and spacer in place.

An ion exchange filter assembly includes an ion exchange filter cartridge and a housing. The ion exchange filter cartridge includes an ion exchange filter for filtering a coolant. The housing includes a first section receiving the ion exchange filter cartridge and a second section for degassing the coolant. The first section is in fluid communication with the second section.

An ion exchange filter assembly includes an ion exchange filter cartridge and a housing. The ion exchange filter cartridge includes an ion exchange filter for filtering a coolant. The housing includes a first section receiving the ion exchange filter cartridge and a second section for degassing the coolant. The first section is in fluid communication with the second section.

A method of producing an ion-conducting membrane containing a polymer having an ionic group, involves multiple liquid treatment steps in which a precursor membrane is brought into contact with an acid treatment solution or an alkali treatment solution, the precursor membrane containing a polymer in a state in which the aforementioned ionic group forms a salt with an impurity ion, wherein the liquid treatment time in the second and subsequent liquid treatment steps of the multiple liquid treatment steps is shorter than the liquid treatment time in the initial liquid treatment step.

A method of producing an ion-conducting membrane containing a polymer having an ionic group, involves multiple liquid treatment steps in which a precursor membrane is brought into contact with an acid treatment solution or an alkali treatment solution, the precursor membrane containing a polymer in a state in which the aforementioned ionic group forms a salt with an impurity ion, wherein the liquid treatment time in the second and subsequent liquid treatment steps of the multiple liquid treatment steps is shorter than the liquid treatment time in the initial liquid treatment step.

A metal ion generator for fluids includes a pipe having an insertion aperture positioned between the fluid inlet and fluid exit, and a conductive member configured to be removably secured in the insertion aperture. The conductive member includes a rigid non-conductive extension and a metal bar. When secured in the insertion aperture, the rigid non-conductive extension positions the metal bar into the direct flow of fluid between the fluid inlet and the fluid exit. A power source applies a voltage to the conductive member causing the metal bar to function as an anode and generate metal ions that are transferred into the fluid. The power supply also connects to a cathode such as the pipe or a second conductive member secured in the insertion aperture.

A method of producing an ion-conducting membrane containing a polymer having an ionic group, involves multiple liquid treatment steps in which a precursor membrane is brought into contact with an acid treatment solution or an alkali treatment solution, the precursor membrane containing a polymer in a state in which the aforementioned ionic group forms a salt with an impurity ion, wherein the liquid treatment time in the second and subsequent liquid treatment steps of the multiple liquid treatment steps is shorter than the liquid treatment time in the initial liquid treatment step.