公开(公告)号：US20250109049A1

公开(公告)日：2025-04-03

申请号：US18833432

申请日：2023-01-25

Applicant: ORGANO CORPORATION

Inventor： Yudai SUZUKI ,  Yasuhide TAKUMA ,  Hiro YOSHIKAWA ,  Chiharu ARAKI

IPC: C02F1/44 ,  C02F1/50

Abstract: A water treatment method includes: supplying water to be treated to a reverse osmosis membrane to be separated into permeate water and concentrate water; and intermittently adding a biocide to water to be treated that is to supplied to the reverse osmosis membrane, the biocide being a bromine-based oxidant, a stabilized hypobromous acid composition containing bromine and a sulfamic acid compound, an iodine-based oxidant, or 2,2-dibromo-3-nitrilopropionamide (DBNPA), wherein the intermittently adding the biocide includes: evaluating a degree of biological contamination of the reverse osmosis membrane; and adjusting, based on the evaluated degree of biological contamination, an amount of the biocide to be added to the water to be treated per a predetermined period to an extent that an oxidation-reduction potential and/or total chlorine concentration of the water to be treated after adding the biocide does not exceed a preset predetermined value.

公开(公告)号：US20240246834A1

公开(公告)日：2024-07-25

申请号：US18289910

申请日：2022-01-28

Applicant: ORGANO CORPORATION

Inventor： Yusuke TAKAHASHI ,  Kazushige TAKAHASHI

IPC: C02F1/00 ,  C02F1/20 ,  C02F1/28 ,  C02F1/32 ,  C02F1/42 ,  C02F1/44 ,  C02F1/72 ,  C02F9/00 ,  C02F101/10 ,  C02F101/30

CPC classification number: C02F1/008 ,  C02F9/00 ,  C02F1/20 ,  C02F1/283 ,  C02F1/32 ,  C02F1/42 ,  C02F2001/422 ,  C02F2001/425 ,  C02F1/441 ,  C02F1/727 ,  C02F2101/10 ,  C02F2101/30 ,  C02F2209/20 ,  C02F2209/22

Abstract: A pure water production apparatus has a ultraviolet ray radiation apparatus that irradiates water to be treated with ultraviolet rays; a TOC acquisition unit and a dissolved oxygen concentration acquisition unit that are provided upstream of the ultraviolet ray radiation apparatus; and a control means that controls concentration of dissolved oxygen in the water to be treated that is supplied to the ultraviolet ray radiation apparatus such that a mass ratio of the concentration of dissolved oxygen in the water to be treated that is acquired by the dissolved oxygen concentration acquisition unit to TOC in the water to be treated that is acquired by the TOC acquisition unit is 1 or more and 7 or less.

公开(公告)号：US20240198324A1

公开(公告)日：2024-06-20

申请号：US18286672

申请日：2022-01-21

Applicant: ORGANO CORPORATION

Inventor： Shinji NAKAMURA ,  Hitoshi TAKADA

IPC: B01J37/30 ,  B01J23/40 ,  B01J35/56 ,  B01J37/06 ,  B01J41/07 ,  B01J41/09 ,  C07F5/02

CPC classification number: B01J37/30 ,  B01J23/40 ,  B01J35/56 ,  B01J37/06 ,  B01J41/07 ,  B01J41/09 ,  C07F5/027

Abstract: In a platinum group metal supported catalyst column, a platinum group metal supported catalyst is a catalyst in which at least one of platinum group metal nanoparticles, platinum group metal ions, and platinum group metal complex ions is supported on an ion exchanger, wherein the exchanger is composed of a continuous skeleton phase and a continuous pore phase, the thickness of the continuous skeleton is 1-100 μm, the average diameter of the continuous pore is 1-1000 μm, the total pore volume is 0.5-50 mL/g, the ion exchange capacity per weight in a dry state is 1-9 mg equivalent/g, and the ion exchanger is non-particulate organic porous ion exchanger in which the ion exchange groups are distributed in the ion exchanger, the amount of platinum group metal nanoparticles, etc., supported is 0.004-20 wt % in a dry state, and a platinum group metal scavenger is provided at the backward stage catalyst.

公开(公告)号：US20240130903A1

公开(公告)日：2024-04-25

申请号：US18269649

申请日：2021-12-15

Applicant: ORGANO CORPORATION

Inventor： Hitoshi TAKADA ,  Ryouta IWAURA

IPC: A61F13/53

CPC classification number: A61F13/53 ,  A61F2013/530226 ,  A61F2013/530481 ,  A61F2013/53089

Abstract: A composite absorber for absorbing liquid, the composite absorber having: a polymer absorbent having a hydrophilic continuous skeleton and continuous pores; and a highly absorbent polymer, wherein the polymer absorbent contains at least a —COOH group and —COONa group as an ion exchange group, and the total ion exchange capacity of the —COOH group and —COONa group per mass in a dry state is at least 4.0 mg equivalent/g.

公开(公告)号：US20240076260A1

公开(公告)日：2024-03-07

申请号：US18269654

申请日：2021-09-22

Applicant: ORGANO CORPORATION

Inventor： Shinji NAKAMURA ,  Hitoshi TAKADA ,  Hironao SAJIKI ,  Tsuyoshi YAMADA ,  Kwihwan PARK

IPC: C07C45/65 ,  B01J31/08 ,  B01J31/28 ,  B01J35/10 ,  B01J37/02 ,  C07C253/30

CPC classification number: C07C45/65 ,  B01J31/08 ,  B01J31/28 ,  B01J35/1042 ,  B01J35/1047 ,  B01J35/1071 ,  B01J35/1076 ,  B01J37/0201 ,  C07C253/30 ,  B01J2231/4211 ,  B01J2231/4266

Abstract: A platinum group metal ion-supported catalyst in which platinum group metal ions or platinum group metal complex ions are supported on a non-particulate organic porous ion exchanger, wherein the non-particulate organic porous ion exchanger is formed of a continuous framework phase and a continuous pore phase; has a thickness of a continuous framework of 1 to 100 μm, an average diameter of continuous pores of 1 to 1000 μm, and a total pore volume of 0.5 to 50 ml/g; has an ion exchange capacity per weight in a dry state of 1 to 9 mg equivalent/g; and has ion exchange groups wherein the ion exchange groups are uniformly distributed in the organic porous ion exchanger.

公开(公告)号：US11897790B2

公开(公告)日：2024-02-13

申请号：US17053259

申请日：2019-05-15

Applicant: ORGANO CORPORATION

Inventor： Kyohei Tsutano ,  Hitoshi Takada

IPC: C02F1/42 ,  B01J41/04 ,  B01J47/028 ,  B01J41/14 ,  B01J47/022 ,  C02F101/10 ,  C02F101/20 ,  C02F101/22 ,  C02F103/04 ,  C02F103/34

CPC classification number: C02F1/42 ,  B01J41/04 ,  B01J41/14 ,  B01J47/022 ,  B01J47/028 ,  C02F2001/422 ,  C02F2001/425 ,  C02F2101/103 ,  C02F2101/108 ,  C02F2101/20 ,  C02F2101/203 ,  C02F2101/22 ,  C02F2103/04 ,  C02F2103/346 ,  C02F2201/006

Abstract: Provided is a method for producing ultrapure water to supply, to a use point, ultrapure water obtained by treating raw material water for ultrapure water production in an ultrapure water production apparatus, wherein the raw material water for ultrapure water production contains at least one or more elements selected from B, As, Al, Ti, Cr, Fe, Cu, Zn, Sn, V, Ga, and Pb, and wherein an ion exchanger-filled module filled with at least a monolithic organic porous anion exchanger is installed in a treatment path of the ultrapure water production apparatus or in a transfer path from the ultrapure water production apparatus to the use point, and water to be treated is passed through the ion exchanger-filled module for treatment.

公开(公告)号：US11860075B2

公开(公告)日：2024-01-02

申请号：US16765990

申请日：2018-10-30

Applicant: ORGANO CORPORATION

Inventor： Kazushige Takahashi ,  Hiroshi Sugawara ,  Fumio Sudo ,  Katsuhisa Shimada

IPC: G01N1/40 ,  B01D15/36 ,  B01D61/02 ,  C02F1/42 ,  C02F1/44 ,  G01N21/78 ,  G01N1/10 ,  C02F101/38

CPC classification number: G01N1/4005 ,  B01D15/361 ,  B01D61/025 ,  C02F1/42 ,  C02F1/441 ,  G01N1/10 ,  G01N21/78 ,  B01D2311/2623 ,  C02F2101/38 ,  G01N2001/4011 ,  G01N2001/4016

Abstract: The analyzing method for quantifying urea in a sample solution includes: a pretreatment step of pretreating the sample solution with at least one of a membrane device including a reverse osmosis membrane and an ion exchange device including an ion exchanger; and an analyzing step of analyzing a target substance in the pretreated sample solution. The analyzing step is based on, for example, flow injection analysis (FIA), and includes a step of quantifying the target substance by measuring the absorbance of a liquid containing a substance generated by reacting the target substance with a reagent.

公开(公告)号：US20230312372A1

公开(公告)日：2023-10-05

申请号：US18024844

申请日：2021-08-20

Applicant: ORGANO CORPORATION

Inventor： Masaharu KAMATA ,  Daisaku YANO ,  Akihiro MOTOMIYA ,  Fumio SUDO

IPC: C02F1/00

CPC classification number: C02F1/008 ,  C02F2209/20 ,  C02F2209/006 ,  C02F2103/04

Abstract: Water treatment apparatuses for removing impurities from supplied water and an information processing device are provided. The information processing device, based on the removal rates for removing impurities in the water treatment apparatuses, calculates a predicted value of the concentration of impurities contained in the water supplied from the water to be treatment apparatuses when water currently being supplied is treated by the water treatment apparatuses.

公开(公告)号：US11634345B2

公开(公告)日：2023-04-25

申请号：US16349739

申请日：2017-08-07

Applicant: ORGANO CORPORATION

Inventor： Rintarou Maeda ,  Yuichirou Toba

IPC: C02F1/56 ,  C02F1/52 ,  B01D21/00 ,  B01D21/01 ,  C02F1/00 ,  B03D3/02 ,  B03D3/06

Abstract: In an insoluble material-generating apparatus, an iron salt and/or an aluminum salt, and a cationic polymer flocculant, are added to waste water containing dissolved substances to generate insoluble material. To the insoluble material-containing waste water, an anionic polymer flocculant is added, after which the waste water containing the anionic polymer flocculant and the insoluble material is stirred in a granulating flocculation precipitation tank, the insoluble material is granulated, and solid-liquid separation of the generated granulated material is performed to obtain treated water. The amount of the iron salt or the aluminum salt added is an iron or aluminum concentration of at least 0.4 mmol/L, and the cationic polymer flocculant and the anionic polymer flocculant are added so that the product of the cationic polymer flocculant concentration and the cationic group percentage is equal to or less than the product of the anionic polymer flocculant concentration and the anionic group percentage.

公开(公告)号：US20220387987A1

公开(公告)日：2022-12-08

申请号：US17771673

申请日：2020-11-24

Applicant: ORGANO CORPORATION

Inventor： Yui SHIOYA ,  Miwa ITO ,  Noriko TAKADA ,  Kaoru NUKUI

IPC: B01J39/05 ,  B01J47/04

Abstract: A method for purifying a non-aqueous solvent includes: pretreating by passing a non-aqueous solvent for dehydration treatment through a packed bed of an ion exchange resin that is not yet subjected to dehydration treatment, to remove water in the ion exchange resin; and purifying by passing a non-aqueous solvent to be purified through the packed bed of the ion exchange resin from which water is removed during the pretreating, to purify the non-aqueous solvent to be purified, in which the harmonic-mean particle size of the ion exchange resin is 0.20 to 0.50 mm. According to the present application, a method for purifying a non-aqueous solvent can be provided, the method includes pretreating by removing water in a water-containing ion exchange resin by passing therethrough a non-aqueous solvent for dehydration treatment, in which the amount of the non-aqueous solvent for dehydration treatment used during the pretreating is small.