Abstract: Provided is a method for producing a one-liquid stabilized hypobromous acid composition which contains substantially no bromate ions, has excellent sterilization performance, exhibits almost no corrosiveness relative to metals, and displays excellent storage stability. This method for producing the stabilized hypobromous acid composition includes a step in which a reaction is induced by adding, under an inert gas atmosphere, bromine to a mixed solution including water, an alkali hydroxide, and sulfamic acid, wherein the proportion of bromine added is not more than 25 wt % relative to the total weight of the composition.

Abstract: A monolithic organic porous body includes a continuous macropore structure that includes cellular macropores that overlap to form openings having an average diameter of 20 to 200 ?m, the monolithic organic porous body having a thickness of 1 mm or more and a total pore volume of 0.5 to 5 ml/g, an area of a skeleton observed within an SEM image of a section of the continuous macropore structure (in a dry state) being 25 to 50%. A monolithic ion exchanger is produced by introducing an ion-exchange group into the monolithic organic porous body. The monolithic organic porous body and the monolithic ion exchanger are chemically stable, have high mechanical strength, and ensure a low pressure loss when fluid passes through. The monolithic organic porous body and the monolithic ion exchanger may be used as an adsorbent having a large adsorption capacity or an ion exchanger having a large ion-exchange capacity.

Abstract: A method of purifying an alcohol, such as isopropyl alcohol, includes a first ion exchange step of performing ion exchange treatment on an alcohol-containing liquid; a step of performing dehydration treatment using a dehydration membrane on the liquid treated in the first ion exchange step; a distillation step of performing distillation on the dehydration-treated liquid; and a second ion exchange step of further performing ion exchange treatment on the liquid obtained in the distillation step to obtain a purified alcohol.

Abstract: The water outlet of a subsystem that includes an ultraviolet oxidation device and the water inlet of each substrate treatment device are connected to each other via a main pipe. A hydrogen peroxide removal device is installed between the ultraviolet oxidation device of the subsystem and a non-regenerative ion-exchange device. In addition, a carbon dioxide supply device is installed at the middle of a pipe that branches from the water outlet of the subsystem to reach the substrate treatment device. According to an aspect, the hydrogen peroxide removal device is filled with a platinum-group metal catalyst. Thus, ultrapure water passed through the ultraviolet oxidation device is used as a base to produce carbonated water in which the concentration of hydrogen peroxide dissolved therein is limited to 2 ?g/L or less and to which carbon dioxide is added to adjust resistivity to be within the range of 0.03 to 5.0 M?·cm.

Abstract: Dissolved oxygen in alcohol is efficiently removed with a simple configuration. Device for removing dissolved oxygen in alcohol has a hydrogen-occluding metal catalyst in which hydrogen is occluded, the catalyst being charged in a device. Dissolved oxygen is removed from alcohol that contains the dissolved oxygen by bringing the alcohol into contact with the hydrogen-occluding metal catalyst. A method of removing dissolved oxygen in alcohol has removing dissolved oxygen from alcohol that contains the dissolved oxygen by bringing the alcohol into contact with a hydrogen-occluding metal catalyst which occludes hydrogen.

Abstract: Treating coal gasification wastewater to remove a cyan compound, a fluorine compound, a selenium compound, ammonia nitrogen and a COD component contained in the coal gasification wastewater to achieve satisfactory quality of treated water, to reduce the content of a toxic substance in produced sludge, and disposes waste materials easily. The system is equipped with a high-temperature alkaline chlorination treatment unit for decomposing at least a cyan compound, ammonia nitrogen and a COD component by such a high-temperature alkaline chlorination treatment that an oxidizing agent is added and the reaction is carried out under warmed conditions; a fluorination treatment unit for removing at least a fluorine compound by a coagulation-sedimentation treatment and/or an adsorption treatment; and a selenium treatment unit for removing a selenium compound that the selenium compound is reduced and then the reduced selenium compound is removed and/or an adsorption treatment.

Abstract: By using a boric acid-resistant anion exchange resin as the anion exchange resin used in a demineralizer that purifies the primary cooling water in a pressurized-water reactor power plant, even when a boric acid-containing primary cooling water is brought into contact with the anion exchange resin disposed in the demineralizer, the generation of breaking or cracking in the anion exchange resin can be prevented.

Abstract: The present invention aims at limiting the pressure loss and smoothly discharging water treated by ion exchangers to the outside of the apparatus. Ion exchanging apparatus 1 has outer vessel 3 that has inner space 2; and ion exchanger support 4 that separates at least a part of inner space 2 into upper space 2a and lower space 2b and that can support ion exchangers to be loaded in upper space 2a. At least a part of an upper surface of the ion exchanger support is made from at least one screen which supports the ion exchangers and which has a flow path allowing water treated by the ion exchangers to flow into the lower space 2b.

Abstract: A non-particulate organic porous material with optical resolution capability, the non-particulate organic porous material having a continuous pore structure, which comprises macropores and mesopores, the macropores being interconnected forming mesopores with a radius of 0.01-100 ?m in the interconnected parts, and optically active groups uniformly introduced therein possesses high physical stability, can be used under wide separating conditions, and has a large capacity for separating optically active substances (enantiometers).

Abstract: The present invention provides an electric device for producing deionized water comprising: desalting chamber (4) defined by at least two ion-exchange membranes (1, 2) and filled with an ion exchanger; first concentration chamber (5a) positioned adjacent to one side of the desalting chamber with one of the ion-exchange membranes therebetween; second concentration chamber (5b) positioned adjacent to the other side of the desalting chamber with another of the ion-exchange membranes therebetween; and a pair of electrode chambers (6a, 6b) with one electrode chamber being disposed at the outer side of first concentration chamber (5a) and the other electrode chamber being disposed at the outer side of second concentration chamber (5b), wherein the electric device for producing deionized water is provided with: main body part (20) formed to include desalting chamber (4), concentration chambers (5a, 5b), and electrode chambers (6a, 6b); a pair of fixing plates (9a, 9b) disposed in such a way that main body part (20)

Abstract: Provided are a supply apparatus and a supply method for supplying fluid carbon dioxide that are energy-saving and efficient. The supply apparatus for supplying fluid carbon dioxide includes: a circulation system including a purifying unit that removes impurities and contaminants from the carbon dioxide, a storage unit that includes a condenser for changing gaseous carbon dioxide passed through the purifying unit into liquid carbon dioxide, a supply unit that includes a first pump for supplying the liquid carbon dioxide in the storage unit to a use point, and a return line through which excess carbon dioxide supplied from the supply unit but not used at the use point is returned to the storage unit; and a carbon dioxide introduction unit that introduces carbon dioxide, as a starting material or recovered gas, to the circulation system.

Abstract: A filter that filters carbon dioxide in the gaseous, liquid or supercritical state is efficiently purified. The carbon dioxide is used to at least clean or dry an object to be treated, or to clean or dry the object to be treated. A method of purifying a filter for filtering carbon dioxide in a gaseous, liquid or supercritical state is provided. The carbon dioxide is used to at least clean or dry the object to be treated, or to clean and dry the object to be treated. According to the method, the filter 13 is purified before the carbon dioxide is filtered in the gaseous, liquid or supercritical state by the filter 13. The filter 13 is purified by allowing carbon dioxide to pass through the filter.

Abstract: An electrodeionization apparatus for producing deionized water comprises a deionization treatment unit including deionization chamber D and a pair of concentration chambers C1 and C2 placed adjacent to deionization chamber D on opposite sides thereof and those concentration chambers are filled with anion exchangers. The deionization chamber D is partitioned by an ion exchange membrane into first small deionization chamber D-1 adjacent to concentration chamber C1 and second small deionization chamber D-2 adjacent to concentration chamber C2. First small deionization chamber D-1 is filled with an anion exchanger. Second small deionization chamber D-2 is filled with an anion exchanger and a cation exchanger in a sequence such that the ion exchanger, through which water that is to be treated finally passes, is the anion exchanger.

Abstract: A non-particulate organic porous material with optical resolution capability, the non-particulate organic porous material having a continuous pore structure, which comprises macropores and mesopores, the macropores being interconnected forming mesopores with a radius of 0.01-100 ?m in the interconnected parts, and optically active groups uniformly introduced therein possesses high physical stability, can be used under wide separating conditions, and has a large capacity for separating optically active substances (enantiometers).

Abstract: Provided is an electrodeionization apparatus for producing deionized water, capable of removing or reducing a biased flow of electric current in a deionization chamber. In the electrodeionization apparatus for producing deionized water, at least one deionization treatment unit including the deionization chamber and a pair of concentration chambers adjacent to both sides of the deionization chamber is disposed between a cathode and an anode. In the deionization chamber, anion exchanger layers and cation exchanger layers are stacked in an order in which a last ion exchanger layer through which water to be treated passes is an anion exchanger layer. A bipolar membrane is formed on the cathode side of the anion exchanger layer in the deionization chamber. The anion exchange membrane of the bipolar membrane is in contact with the anion exchanger layer.

Abstract: A non-particulate organic porous material with optical resolution capability, the non-particulate organic porous material having a continuous pore structure, which comprises macropores and mesopores, the macropores being interconnected forming mesopores with a radius of 0.01-100 ?m in the interconnected parts, and optically active groups uniformly introduced therein possesses high physical stability, can be used under wide separating conditions, and has a large capacity for separating optically active substances (enantiometers).

Abstract: A method of purifying an alcohol, such as isopropyl alcohol, includes a first ion exchange step of performing ion exchange treatment on an alcohol-containing liquid; a step of performing dehydration treatment using a dehydration membrane on the liquid treated in the first ion exchange step; a distillation step of performing distillation on the dehydration-treated liquid; and a second ion exchange step of further performing ion exchange treatment on the liquid obtained in the distillation step to obtain a purified alcohol.

Abstract: A liquefied carbon dioxide producing apparatus that can generate high-purity liquid CO2 free from moisture and organic matter such as oil includes: a recirculating system that carries out a recirculating treatment on CO2; and an introduction device that introduces CO2 from an external source of CO2 into the recirculating system. The recirculating system includes at least an evaporator that vaporizes CO2, a condenser that condenses CO2 from an outlet of the evaporator, and a storage tank that stores liquid CO2 generated by the condenser. The liquid CO2 in the storage tank is fed to a point-of-use and to the evaporator. An adsorption device that removes moisture and organic matter (oil) is provided on a line from the external source of CO2 to the condenser at a position where CO2 gas flows.

Abstract: A filtration and demineralization apparatus 10 including a vessel 20 in a form of a body of revolution; a hollow columnar body 40 that is located in an internal space of the vessel 20, one end 40a of the columnar body being connected to an inner surface of the vessel 20 along an entire circumference of the end, and the other end 40b of the columnar body forming an opening; and a partition plate 44 that is connected to the other end 40b of the hollow columnar body along an entire circumference of the other end 40b, the partition plate being configured to separate an inside space or an outside space of the hollow columnar body 40 as an independent space in the vessel. The partition plate 44 has a circulation port 43 that allows water that is to be treated to pass therethrough.

Abstract: A filter that filters carbon dioxide in the gaseous, liquid or supercritical state is efficiently purified. The carbon dioxide is used to at least clean or dry an object to be treated, or to clean or dry the object to be treated. A method of purifying a filter for filtering carbon dioxide in a gaseous, liquid or supercritical state is provided. The carbon dioxide is used to at least clean or dry the object to be treated, or to clean and dry the object to be treated. According to the method, the filter 13 is purified before the carbon dioxide is filtered in the gaseous, liquid or supercritical state by the filter 13. The filter 13 is purified by allowing carbon dioxide to pass through the filter.