公开(公告)号：US20240002265A1

公开(公告)日：2024-01-04

申请号：US18039628

申请日：2021-10-28

Applicant: ORGANO CORPORATION

Inventor： Yuki NAKAMURA ,  Yusuke TAKAHASHI ,  Keisuke SASAKI

IPC: C02F1/469

CPC classification number: C02F1/4695 ,  C02F2303/00 ,  C02F2201/46115 ,  C02F2101/108

Abstract: An electrodeionization device (EDI device) with improved performance for removing weak acid components such as boron includes a deionization chamber partitioned by a pair of ion exchange membranes between an anode and a cathode. A grain size of 0.1 mm or more and 0.4 mm or less is defined as small grain size, and a grain size of more than 0.4 mm is defined as large grain size. In the deionization chamber, a large grain size layer made of an ion exchange resin of large grain size and a mixed grain size layer in which an ion exchange resin of large grain size and an ion exchange resin of small grain size are mixed are arranged along a flow of water to be treated.

公开(公告)号：US20240342657A1

公开(公告)日：2024-10-17

申请号：US18703459

申请日：2022-09-09

Applicant: ORGANO CORPORATION

Inventor： Keisuke SASAKI ,  Yuki NAKAMURA ,  Ryosuke TERASHI ,  Fumio SUDO

IPC: B01D61/58 ,  B01D61/02 ,  B01D61/48 ,  C02F1/44 ,  C02F1/469 ,  C02F101/10

CPC classification number: B01D61/58 ,  C02F1/441 ,  C02F1/4695 ,  B01D61/025 ,  B01D61/48 ,  B01D2313/221 ,  C02F2101/108 ,  C02F2209/02 ,  C02F2301/046 ,  C02F2303/10

Abstract: A water treatment system includes a reverse osmosis membrane device, an electrodeionization device that is located downstream of the reverse osmosis membrane device, a first heat exchanger that is located upstream of the reverse osmosis membrane device and that adjusts the temperature of the water supplied to the reverse osmosis membrane device according to the temperature of raw water supplied to the water treatment system, and a second heat exchanger that is located between the reverse osmosis membrane device and the electrodeionization device and that cools the water supplied to the electrodeionization device. One of the first heat exchanger and the second heat exchanger is an internal heat exchanger that exchanges heat inside the water treatment system, and the other is an external heat exchanger that exchanges heat with the outside of the water treatment system.

公开(公告)号：US20240239695A1

公开(公告)日：2024-07-18

申请号：US18280737

申请日：2022-02-03

Applicant: ORGANO CORPORATION

Inventor： Keisuke SASAKI ,  Mayu ABE ,  Fumio SUDO ,  Hiroshi YAMADA ,  Tsukasa KONDO

IPC: C02F1/469 ,  B01D61/46 ,  B01D61/48 ,  C02F1/72 ,  C02F101/10

CPC classification number: C02F1/4695 ,  B01D61/463 ,  B01D61/485 ,  C02F1/725 ,  C02F2101/10

Abstract: A water treatment apparatus for removing dissolved oxygen contained in water to be treated includes: an anode; a cathode; and a dissolved oxygen removal chamber which is located between the anode and the cathode and filled with an ion exchanger. At least a portion of the ion exchanger filled in the dissolved oxygen removal chamber is an ion exchanger on which a metal catalyst is supported. The ion exchanger on which the metal catalyst is supported is filled in a single bed configuration in at least a portion of the dissolved oxygen removal chamber. A DC current is applied between the anode and the cathode.

公开(公告)号：US20230322594A1

公开(公告)日：2023-10-12

申请号：US18025272

申请日：2021-08-31

Applicant: ORGANO CORPORATION

Inventor： Yusuke TAKAHASHI ,  Keisuke SASAKI ,  Kazushige TAKAHASHI

IPC: C02F1/76 ,  C02F1/00 ,  C02F1/42

CPC classification number: C02F1/766 ,  C02F1/008 ,  C02F1/42 ,  C02F2303/185 ,  C02F2209/22 ,  C02F2101/38

Abstract: A water treatment system that can effectively remove persistent organic materials is provided. Water treatment system has: means for adding halogen oxoacid that adds halogen oxoacid to water to be treated that contains organic materials; and ion exchanger loaded apparatus that is positioned downstream of means for adding halogen oxoacid, wherein at least anion exchangers are loaded in ion exchanger loaded apparatus. The water to be treated to which the halogen oxoacid has been added is supplied to ion exchanger loaded apparatus.

公开(公告)号：US20230192515A1

公开(公告)日：2023-06-22

申请号：US18011297

申请日：2021-05-24

Applicant: ORGANO CORPORATION

Inventor： Yusuke TAKAHASHI ,  Naonori MOMOTANI ,  Keisuke SASAKI ,  Kazushige TAKAHASHI ,  Fumio SUDO

IPC: C02F1/76 ,  C02F1/32 ,  C02F1/72

CPC classification number: C02F1/766 ,  C02F1/32 ,  C02F1/722 ,  C02F2001/422

Abstract: A water treatment apparatus that can remove persistent organic materials more efficiently is provided. Water treatment apparatus has hypohalogenous acid addition means that adds hypohalogenous acid to water to be treated that contains organic materials; and ultraviolet ray radiating apparatus that is positioned downstream of hypohalogenous acid addition means and that radiates ultraviolet rays to the water to be treated to which the hypohalogenous acid has been added.

公开(公告)号：US20240150200A1

公开(公告)日：2024-05-09

申请号：US18280583

申请日：2022-01-07

Applicant: ORGANO CORPORATION

Inventor： Keisuke SASAKI ,  Kazushige TAKAHASHI ,  Yusuke TAKAHASHI ,  Fumio SUDO

IPC: C02F1/32 ,  C02F1/20 ,  C02F1/461 ,  C02F1/68 ,  C02F101/30

CPC classification number: C02F1/32 ,  C02F1/20 ,  C02F1/461 ,  C02F1/68 ,  C02F2101/30 ,  C02F2209/22 ,  C02F2305/02

Abstract: A water treatment apparatus for decomposing and removing organic substances in water to be treated includes: a hydrogen peroxide source for storing hydrogen peroxide which is added to the water to be treated; an ultraviolet oxidation device for irradiating ultraviolet light to the water to be treated to which hydrogen peroxide has been added; and a hydrogen peroxide removal device for removing hydrogen peroxide contained in the outlet water from the ultraviolet oxidation device. The hydrogen peroxide removal device includes: an anode and a cathode; and a hydrogen peroxide removal chamber disposed between the anode and the cathode and provided with a metal catalyst with ability of decomposing hydrogen peroxide. A DC current is applied between the anode and cathode.

公开(公告)号：US20230331593A1

公开(公告)日：2023-10-19

申请号：US18029955

申请日：2021-09-02

Applicant: ORGANO CORPORATION

Inventor： Yuki NAKAMURA ,  Keisuke SASAKI ,  Fumio SUDO

IPC: C02F1/44 ,  C02F1/469

CPC classification number: C02F1/441 ,  C02F1/469 ,  C02F2101/108

Abstract: A pure water production system includes a reverse osmosis membrane device; an electric deionized water production device that is disposed downstream of the reverse osmosis membrane device; and a control device that controls a processing condition of the reverse osmosis membrane device. The control device controls a processing condition of the reverse osmosis membrane device such that a removal rate of a specific substance of the electric deionized water production device is equal to or lower than a threshold value, and concentration of the specific substance in the treated water of the electric deionized water production device is equal to or lower than a prescribed value and specific resistance of the treated water of the electric deionized water production device is equal to or higher than a prescribed value.

公开(公告)号：US20230264985A1

公开(公告)日：2023-08-24

申请号：US18011322

申请日：2021-05-24

Applicant: ORGANO CORPORATION

Inventor： Yusuke TAKAHASHI ,  Keisuke SASAKI ,  Kazushige TAKAHASHI ,  Fumio SUDO

IPC: C02F1/42 ,  C02F1/58

CPC classification number: C02F1/42 ,  C02F1/58 ,  C02F2001/422 ,  C02F2303/16 ,  C02F2103/04

Abstract: A water treatment apparatus that can enhance the efficiency of removing hydrogen peroxide is provided. A water treatment apparatus (pure water production apparatus) has anion removing means that removes anions from water to be treated that contains hydrogen peroxide and the anions; and platinum group catalyst carriers (catalyst tower) that are positioned downstream of anion removing means.

公开(公告)号：US20230249992A1

公开(公告)日：2023-08-10

申请号：US18011305

申请日：2021-05-24

Applicant: ORGANO CORPORATION

Inventor： Keisuke SASAKI ,  Fumio SUDO ,  Kazushige TAKAHASHI ,  Tsukasa KONDO ,  Kenji SHIBASAKI ,  Mayu ABE

IPC: C02F1/42 ,  C02F1/469 ,  C02F1/32 ,  C02F1/58 ,  B01J31/30

CPC classification number: C02F1/42 ,  C02F1/4695 ,  C02F1/32 ,  C02F1/58 ,  B01J31/30 ,  C02F2103/04

Abstract: A hydrogen peroxide removing apparatus for removing hydrogen peroxide contained in water to be processed includes: anode and cathode; and hydrogen peroxide removal chamber provided between anode and cathode and at least partially filled with a metal catalyst with hydrogen peroxide decomposition ability, wherein a DC voltage is applied between anode and cathode.

公开(公告)号：US20230183115A1

公开(公告)日：2023-06-15

申请号：US17925052

申请日：2021-03-30

Applicant: ORGANO CORPORATION

Inventor： Kazushige TAKAHASHI ,  Fumio SUDO ,  Yuki NAKAMURA ,  Kenji SHIBASAKI ,  Keisuke SASAKI

IPC: C02F9/00 ,  B01D61/58

CPC classification number: C02F9/00 ,  B01D61/58 ,  C02F1/4695

Abstract: Provided are an apparatus for removing boron and a method for removing boron for reducing the boron concentration in water to be treated, and an apparatus and a method for producing pure water wherein the boron concentration is reduced. An apparatus for removing boron includes: a first electrodeionization device to which water to be treated is supplied; an ultraviolet oxidation device to which the water treated by the first electrodeionization device is supplied; an oxide removal device to which the water treated by the ultraviolet oxidation device is supplied; and a second electrodeionization device to which the water treated by the oxide removal device is supplied. A method for removing boron using the apparatus is provided. The oxide removal device is equipped with a platinum group metal catalyst, and the water that has been treated by the oxide removal device has a hydrogen peroxide concentration of less than 1 ppb.