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公开(公告)号：US20220212961A1
公开(公告)日：2022-07-07
申请号：US17603613
申请日：2020-08-03
Applicant: ORGANO CORPORATION
Inventor： Yuki NAKAMURA
Abstract: A water treatment system including: a reverse osmosis membrane device A for treating a water to be treated; a reverse osmosis membrane device E for treating permeated water from device A; a reverse osmosis membrane device B for treating concentrated water from device A or E; a reverse osmosis membrane device C for treating concentrated water from device E or A; and each of water flow lines through which the concentrated water and permeated water from devices A to E respectively flow downstream, wherein the connections of each of the water flow lines are switchable so that while the concentrated water from device E flows to device B to wash device B, the concentrated water from device A is treatable by device C, and while the concentrated water from device E flows to device C to wash device C, the concentrated water from device A is treatable by device B.
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2.发明申请公开(公告)号：US20190321786A1
公开(公告)日：2019-10-24
申请号：US16461946
申请日：2017-11-16
Applicant: ORGANO CORPORATION
Inventor： Yuki NAKAMURA , Akihiro TAKADA
Abstract: A reverse osmosis membrane treatment system is provided with a first reverse osmosis membrane treatment device wherein water to be treated is passed through a first reverse osmosis membrane to obtain first permeate water and first concentrated water, and at least a second reverse osmosis membrane treatment device, wherein the first permeate water is passed through a second reverse osmosis membrane to obtain second permeate water and second concentrated water. The permeation flux per 1 MPa of effective pressure for the second reverse osmosis membrane is lower than the permeation flux per 1 MPa of effective pressure for the first reverse osmosis membrane, and the permeation flux per 1 MPa of effective pressure for the second reverse osmosis membrane is 0.5 m3/m2/d or less.
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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.
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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
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.
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公开(公告)号：US20240262730A1
公开(公告)日：2024-08-08
申请号：US18567086
申请日：2022-01-31
Applicant: ORGANO CORPORATION
Inventor： Yusuke TAKAHASHI , Kazushige TAKAHASHI , Yuki NAKAMURA
CPC classification number: C02F9/00 , C02F1/32 , C02F1/42 , C02F1/441 , C02F1/685 , C02F1/722 , C02F2101/30 , C02F2209/20 , C02F2303/18 , C02F2305/023
Abstract: A pure water production apparatus that is economical and that can easily ensure good water quality of treated water is provided. Pure water production apparatus has: sulfur compound addition means for adding a sulfur compound containing a peroxide group to water to be treated that contains organic materials; ultraviolet ray radiation apparatus that irradiates with ultraviolet rays the water to be treated to which the sulfur compound was added; reverse osmosis membrane apparatus through which passes the water to be treated that was irradiated with the ultraviolet rays; and ion exchange resin-filled apparatus through which passes the water to be treated that was treated by reverse osmosis membrane apparatus.
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Patent Agency Ranking
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
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.
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7.发明公开公开(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
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.
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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
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.
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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
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.
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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
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.
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