公开(公告)号：US11860075B2

公开(公告)日：2024-01-02

申请号：US16765990

申请日：2018-10-30

申请人： ORGANO CORPORATION

发明人： Kazushige Takahashi ,  Hiroshi Sugawara ,  Fumio Sudo ,  Katsuhisa Shimada

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

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

摘要： 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：US11932555B2

公开(公告)日：2024-03-19

申请号：US16979421

申请日：2019-02-14

申请人： ORGANO CORPORATION

发明人： Nozomi Takatori ,  Hiroshi Sugawara ,  Kazushige Takahashi ,  Fumio Sudo

IPC分类号： C02F1/00 ,  B01D61/02 ,  B01D61/08 ,  B01D61/12 ,  C02F1/32 ,  C02F1/44 ,  C02F101/34 ,  C02F101/38 ,  C02F103/04

CPC分类号： C02F1/008 ,  B01D61/025 ,  B01D61/08 ,  B01D61/12 ,  C02F1/32 ,  C02F1/441 ,  B01D2311/246 ,  C02F2101/34 ,  C02F2101/38 ,  C02F2103/04 ,  C02F2209/20

摘要： A water treatment management apparatus used for monitoring and evaluating water supplied to a water treatment system such as an ultrapure water production system and performing appropriate management of operation of the water treatment system includes: a pure water production unit for evaluation to which water to be supplied to the water treatment system is supplied as target water, the pure water production unit for evaluation including a TOC removal apparatus for performing a unit operation of removing total organic carbon (TOC) components; and measuring means for measuring TOC concentration at a plurality of measurement points in the pure water production unit for evaluation, the plurality of the measurement points including an inlet and an outlet of the pure water production unit for evaluation.

公开(公告)号：US12037276B2

公开(公告)日：2024-07-16

申请号：US17438011

申请日：2020-02-13

申请人： ORGANO CORPORATION

发明人： Kazushige Takahashi ,  Fumio Sudo ,  Yuki Nakamura ,  Kenji Shibasaki ,  Keisuke Sasaki

IPC分类号： C02F1/32 ,  B01D61/02 ,  B01D61/44 ,  B01D61/58 ,  C02F1/42 ,  C02F1/44 ,  C02F1/46 ,  C02F1/66 ,  C02F9/00 ,  C02F1/469 ,  C02F101/10 ,  C02F101/30

CPC分类号： C02F9/00 ,  B01D61/025 ,  B01D61/026 ,  B01D61/44 ,  B01D61/58 ,  B01D2311/18 ,  B01D2311/2619 ,  B01D2311/2623 ,  C02F1/32 ,  C02F1/42 ,  C02F1/441 ,  C02F1/4695 ,  C02F1/66 ,  C02F2101/108 ,  C02F2101/30 ,  C02F2301/066 ,  C02F2301/08

摘要： 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.