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公开(公告)号：US20170354932A1
公开(公告)日：2017-12-14
申请号：US15540198
申请日：2016-02-15
发明人： Shin SATO , Yoichi MIYAZAKI
CPC分类号： B01D61/48 , B01D61/025 , B01D61/08 , B01D61/485 , B01D61/58 , C02F1/001 , C02F1/20 , C02F1/24 , C02F1/283 , C02F1/32 , C02F1/42 , C02F1/44 , C02F1/441 , C02F1/444 , C02F1/469 , C02F1/4695 , C02F1/52 , C02F2001/427 , C02F2101/108 , C02F2201/46115 , Y02A20/131 , Y02A20/134
摘要： An electrodeionization device having an improved boron rejection capability compared with high-performance electrodeionization devices proposed in the related art is provided. An electrodeionization device comprising a cathode; an anode; and a plurality of cation-exchange membranes and a plurality of anion-exchange membranes, the plurality of cation-exchange membranes and the plurality of anion-exchange membranes being arranged between the cathode and the anode so as to form concentrating compartments and desalting compartments, the concentrating compartments and desalting compartments being arranged alternately, the desalting compartments being filled with an ion-exchange resin, wherein the ion-exchange resin has an average particle size of 100 to 300 μm. Preferably, the ion-exchange resin has a uniformity coefficient of 1.1 or less.
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公开(公告)号：US20170253499A1
公开(公告)日：2017-09-07
申请号：US15598938
申请日：2017-05-18
发明人： Takeo FUKUI , Yoichi MIYAZAKI
CPC分类号： C02F1/325 , B01D15/363 , B01J31/28 , C02F1/32 , C02F1/42 , C02F1/444 , C02F1/722 , C02F1/725 , C02F9/00 , C02F2001/422 , C02F2103/04 , C02F2201/32 , C02F2303/18 , C02F2305/10
摘要： Provided are a method and an apparatus for producing pure water in which water that has been subjected to an ultraviolet oxidation treatment performed with an ultraviolet oxidation device is brought into contact with a platinum-group metal catalyst, the method and apparatus eliminating the likelihood of the catalyst being degraded and enabling decomposition of hydrogen peroxide to be performed for a prolonged period of time in a consistent manner. Water-to-be-treated is subjected to an ultraviolet oxidation treatment performed with an ultraviolet oxidation device and subsequently subjected to a hydrogen peroxide removal treatment performed with a hydrogen peroxide removal device including a platinum-group metal catalyst. The TOC concentration in water fed to the ultraviolet oxidation device is 5 ppb or less. An anion exchange resin tower is installed in a stage following the ultraviolet oxidation device.
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公开(公告)号：US20220212953A1
公开(公告)日：2022-07-07
申请号：US17610685
申请日：2020-02-25
发明人： Masahito TOCHINAI , Yoichi MIYAZAKI
摘要： Provided is a method for predicting particulate breakthrough time for a non-regenerative ion exchange resin device, in which a portion of water to be treated by a non-regenerative ion exchange resin device passes through each of the following that are disposed in parallel with the non-regenerative ion exchange resin device: a first path that includes a first particle counter; a second path that includes a first compact resin column, a second particle counter, a flow rate regulating valve, and a first flow meter; and a third path that includes a second compact resin column, a third particle counter, a flow rate regulating valve, and a second flow meter.
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公开(公告)号：US20190099750A1
公开(公告)日：2019-04-04
申请号：US16085998
申请日：2017-03-16
发明人： Yoichi MIYAZAKI , Hideaki IINO , Naoki FUKASAWA
IPC分类号： B01J47/022 , B01J47/028 , B01J49/08 , C02F1/42
摘要： An ion exchange device is used that includes an anion exchange tank, a cation exchange tank and a tower body side portion, in which the anion exchange tank and the cation exchange tank are allowed to communicate by communication means that is arranged around the outside of the anion exchange tank and the cation exchange tank. The ion exchange device also includes supply/discharge pipes for supplying or discharging a liquid to or from an upper portion and a lower portion of the anion exchange tank, and supply/discharge pipes for supplying or discharging a liquid to or from an upper portion and a lower portion of the cation exchange tank. A water collection/distribution member that allows water to pass but prevents passage of an ion-exchange resin is provided in a flat plate.
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公开(公告)号：US20190232229A1
公开(公告)日：2019-08-01
申请号：US16332493
申请日：2017-03-09
发明人： Yoichi MIYAZAKI , Yuichiro WADA , Kouichi NAGATA
CPC分类号： B01D61/48 , B01D61/46 , B01D2313/10 , B01D2313/12 , C02F1/469 , C02F1/4695 , Y02A20/134
摘要： Inflow branch pipes of water to be treated, which are branched from an inflow line of the water to be treated, which is provided on an upper side of desalination chambers of an electrodeionization apparatus, communicate with the desalination chambers, respectively. Both ends of the inflow line of the water to be treated are opened, and a supply pipe of the water to be treated communicates with each of the ends so that the water to be treated can be supplied from both sides. In addition, in a lower side of each of the desalination chambers, outflow pipes of treated water, communicate with each other, and these outflow pipes each join an outflow line of the treated water. In addition, both ends of the outflow line of the water to be treated are opened so that the treated water can be discharged from both sides. According to such an electrodeionization apparatus, it is possible to suppress an increase in a differential pressure during passage of water.
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公开(公告)号：US20160221841A1
公开(公告)日：2016-08-04
申请号：US15021157
申请日：2014-10-30
发明人： Takeo FUKUI , Yoichi MIYAZAKI
CPC分类号： C02F1/325 , B01D15/363 , B01J31/28 , C02F1/32 , C02F1/42 , C02F1/444 , C02F1/722 , C02F1/725 , C02F9/00 , C02F2001/422 , C02F2103/04 , C02F2201/32 , C02F2303/18 , C02F2305/10
摘要： Provided is a method and apparatus for producing pure water in which water that has been subjected to an ultraviolet oxidation treatment performed with an ultraviolet oxidation device is brought into contact with a platinum-group metal catalyst, the method and apparatus eliminating the likelihood of the catalyst being degraded and enabling decomposition of hydrogen peroxide to be performed for a prolonged period of time in a consistent manner. Water-to-be-treated is subjected to an ultraviolet oxidation treatment performed with an ultraviolet oxidation device 2 and subsequently subjected to a hydrogen peroxide removal treatment performed with a hydrogen peroxide removal device 4 including a platinum-group metal catalyst, wherein the TOC concentration in water fed to the ultraviolet oxidation device 2 is 5 ppb or less. An anion exchange resin tower 3 is installed in a stage following the ultraviolet oxidation device 2.
摘要翻译： 提供一种生产纯水的方法和装置，其中用紫外线氧化装置进行紫外线氧化处理的水与铂族金属催化剂接触，该方法和装置消除了催化剂的可能性 降解并且能够以一致的方式使过氧化氢分解长时间进行。 对待处理的水进行紫外线氧化装置2的紫外线氧化处理，然后用包含铂族金属催化剂的过氧化氢去除装置4进行过氧化氢去除处理，其中TOC浓度 在供给到紫外线氧化装置2的水中为5ppb以下。 阴离子交换树脂塔3安装在紫外线氧化装置2之后的阶段。
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