摘要:
A filtration and demineralization apparatus that is capable of reducing the cost of the apparatus and building cost by using an apparatus whose height is limited, and that is also capable of ensuring sufficient treatment capacity, as well as good operability, is provided. A filtration and demineralization apparatus 10 comprises 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. The independent space in the vessel that is separated by the partition plate functions as a filtration chamber 41 in which filter elements are loaded, and the inside space or the outside space of the hollow columnar body that is not separated as the independent space by the partition plate functions as a demineralization chamber 22, the water that was treated in the filtration chamber being adapted to enter the demineralization chamber through the circulation port 43.
摘要:
A unit for separating an exhaust gas containing PFC gases including CF4 and C2F6 generated in a production process, wherein the exhaust gas is concentrated in a concentration device, and then separated chromatographically in a chromatographic separation device using nitrogen as a carrier gas. The chromatographic separation device is packed with molecular sieve 13X or F-9 or the like. The unit is capable of effectively separating CF4 and C2F6.
摘要:
There is provided a gas separation apparatus for separating a specified gas from a gas to be treated containing a plurality of gases. The gas separation apparatus includes a plurality of serially-connected separation units that separate the specified gas from other gases by using a column, and a suction unit that controls an inside of the column to a reduced pressure. At least two of the plurality of separation units differ from each other in at least one separation condition.
摘要:
A porous ion exchanger includes an open cell structure including interconnected macropores and mesopores whose average diameter is in a range of 1 to 1000 μm existing on walls of the macropores. Moreover, a total pore volume is in a range of 1 to 50 ml/g, ion exchange groups are uniformly distributed, and an ion exchange capacity is not less than 0.5 mg equivalent/g of dry porous ion exchanger. The porous ion exchanger can be used as an ion exchanger filled into a deionization module of an electrodeionization water purification device, solid acid catalyst, adsorbent, and filler for chromatography.
摘要:
A method and apparatus for treating an effluent containing radioactive materials: wherein an oxidizing agent is added to an effluent containing radioactive materials, and the effluent including the oxidizing agent is filtered with a filtration film to obtain filtrated water; and the filtrated water is filtered through activated carbon; and the filtered water filtered by the activated carbon is filtered through at least one of an ion-exchanger and reverse osmosis membrane.
摘要:
A chemical filter, characterized in that it uses, as an adsorption layer, an organic porous ion exchanger which has an open pore structure wherein a meso pore having an average diameter of 5 to 1,000 μm is formed in the wall between a macro pore and a macro pore connected with each other, has a total pore volume of 1 to 50 ml/g, has ion-exchange groups being uniformly distributed, and has an ion-exchange capacity of 3.0 mg equivalent/g-dry porous material or more. The chemical filter can maintain the capacity of adsorbing and removing a gaseous contaminant even at an enhanced gas transmission rate, and can remove also a trace amount of a gaseous contaminant.
摘要:
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 μm 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).
摘要:
An organic porous material having a continuous pore structure, which comprises interconnected macropores and mesopores with a radius of 0.01 to 100 μm in the walls of the macropores, having a total pore volume of 1 to 50 ml/g and having pore distribution curve characteristics wherein the value obtained by dividing the half-width of the pore distribution curve at the main peak by the radius at the main peak is 0.5 or less. The organic porous material is useful as an adsorbent having high physical strength and excelling in adsorption amount and adsorption speed, an ion exchanger excelling in durability against swelling and shrinkage, and a filler for chromatography exhibiting high separation capability.
摘要:
A porous ion exchanger includes an open cell structure including interconnected macropores and mesopores whose average diameter is in a range of 1 to 1000 μm existing on walls of the macropores. Moreover, a total pore volume is in a range of 1 to 50 ml/g, ion exchange groups are uniformly distributed, and an ion exchange capacity is not less than 0.5 mg equivalent/g of dry porous ion exchanger. The porous ion exchanger can be used as an ion exchanger filled into a deionization module of an electrodeionization water purification device, solid acid catalyst, adsorbent, and filler for chromatography.
摘要:
Abstract of DisclosureA specific monocarboxylic acid with even-numbered carbon atoms, sebacic acid, or a salt thereof is used as a corrosion inhibitor. Alternatively, a specific aliphatic monocarboxylic acid, sebacic acid, or a salt thereof is blended with a specific aliphatic oxycarboxylic acid, a specific polycarboxylic acid, or a salt thereof to prepare a corrosion inhibitor. These corrosion inhibitors can be used in a cooling water system using low-hardness water and in water systems wherein a water flow velocity above a given level cannot always be secured, whereby a high corrosion control performance can be exhibited without imposing unfriendly loads on the environment.