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.

公开(公告)号：US20220388880A1

公开(公告)日：2022-12-08

申请号：US17770185

申请日：2020-07-29

Applicant: ORGANO CORPORATION

Inventor： Keisuke SASAKI ,  Yuki NAKAMURA ,  Kazushige TAKAHASHI

IPC: C02F9/00 ,  C02F1/00 ,  B01D19/00 ,  B01D61/48 ,  B01D61/02 ,  B01D61/54 ,  B01D61/12

Abstract: A water treatment system includes: EDI having deionization chamber that deionizes water that contains boron and concentration chambers in which concentrated water flows; and a cooler to cool the water supplied to deionization chamber or the concentrated water supplied to concentration chambers. Alternatively, water treatment system includes EDI having deionization chamber that deionizes water that contains boron, concentration chambers in which concentrated water flows, and electrode chambers in which electrode water flows; a cooler that adjusts temperature of the water or temperature of the concentrated water supplied to concentration chamber; and a controller that controls the cooler such that the cooler adjusts the temperature of the water supplied to deionization chamber or the temperature of the concentrated water supplied to the concentration chambers within a range of 10-23° C., based on the temperature of the water, temperature of treated water of EDI, the temperature of the concentrated water, or temperature of the electrode water.

公开(公告)号：US20220177340A1

公开(公告)日：2022-06-09

申请号：US17437975

申请日：2020-02-13

Applicant: ORGANO CORPORATION

Inventor： Yuki NAKAMURA ,  Kazushige TAKAHASHI ,  Keisuke SASAKI

IPC: C02F9/00 ,  B01D61/02 ,  B01D61/08 ,  B01D61/48 ,  B01D61/58

Abstract: A pure-water production device including: a first reverse osmosis membrane device to which water to be treated is supplied; a second reverse osmosis membrane device to which permeated water from the first reverse osmosis membrane device is supplied; an electrodeionization device to which permeated water from the second reverse osmosis membrane device is supplied; a brine tank to which concentrated water from the first reverse osmosis membrane device is supplied; and a third reverse osmosis membrane device connected to the brine tank, wherein the second reverse osmosis membrane device is a high-pressure reverse osmosis membrane device, the brine tank is supplied with at least one concentrated water selected from the group consisting of concentrated water from the second reverse osmosis membrane device and concentrated water from the electrodeionization device, wherein permeated water from the third reverse osmosis membrane device is supplied to water to be treated, is used.

公开(公告)号：US20220162104A1

公开(公告)日：2022-05-26

申请号：US17438011

申请日：2020-02-13

Applicant: ORGANO CORPORATION

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

IPC: C02F9/00 ,  B01D61/44 ,  B01D61/02 ,  B01D61/58

Abstract: A method for efficiently treating boron from water to be treated, an apparatus for producing pure water, and a method for producing pure water. An apparatus for removing boron includes a low-pressure reverse osmosis membrane apparatus to which is supplied water to be treated, a pH adjustment apparatus to adjust a pH of permeated water from the low-pressure reverse osmosis membrane apparatus to 5.0 to 9.0, a high-pressure reverse osmosis membrane apparatus to which is supplied the water adjusted by the pH adjustment apparatus, and an electrodeionization to which is supplied permeated water from the high-pressure reverse osmosis membrane apparatus.