公开(公告)号：US10941056B2

公开(公告)日：2021-03-09

申请号：US15774045

申请日：2016-12-26

Applicant: Mitsubishi Electric Corporation

Inventor： Tokiko Yamauchi ,  Yoshihiro Nakayama ,  Eiji Imamura ,  Nozomu Yasunaga

IPC: C02F1/461 ,  C02F1/469 ,  C02F103/08

Abstract: A water treatment device in which a treatment target water introduction portion is provided in an upper portion of a receptacle, and the water treatment device has a space in which conductive porous members are not disposed between the conductive porous members and the treatment target water introduction portion in the receptacle. When a backwashing fluid is introduced from a lower portion of the receptacle in a desorption, the conductive porous members flow and are agitated owing to the backwashing fluid, because of which a desorption of ions adsorbed to the conductive porous members is promoted. Grains of the agitated conductive porous members collide with other grains of the conductive porous members or with electrodes or a separator, whereby scale and a biofilm appearing on surfaces of the grains of the conductive porous members, the electrodes, or the separator can be removed, and desalination efficiency can be maintained.

公开(公告)号：US20190352201A1

公开(公告)日：2019-11-21

申请号：US16531945

申请日：2019-08-05

Applicant: Mitsubishi Electric Corporation

Inventor： Yoshihiro NAKAYAMA ,  Tokiko Yamauchi ,  Nozomu Yasunaga ,  Seiji Noda

IPC: C02F1/461 ,  C02F1/46 ,  B01D35/16 ,  C02F1/48

Abstract: A water treatment apparatus includes: a first granular electrode member and a second granular electrode member stored in a water treatment unit and provided so as to be separated from each other; a power supply unit which applies voltage between the first granular electrode member and the second granular electrode member so that ions contained in treatment target water supplied from one side of the water treatment unit are adsorbed to the first granular electrode member and the second granular electrode member; and a washing water supply pump which causes washing water to flow from the other side of the water treatment unit to the one side of the water treatment unit, thereby washing the first granular electrode member and the second granular electrode member, wherein the first granular electrode member and the second granular electrode member each include a plurality of flowable granular electrode members.

公开(公告)号：US10259731B2

公开(公告)日：2019-04-16

申请号：US15122335

申请日：2015-04-10

Applicant: Mitsubishi Electric Corporation

Inventor： Tokiko Yamauchi ,  Makoto Takata ,  Hiroshi Kuroki ,  Nozomu Yasunaga ,  Seiji Furukawa

IPC: C02F3/00 ,  B01F5/04 ,  C02F3/12 ,  C02F11/06 ,  B01F15/00 ,  B01F15/02 ,  B01J7/00 ,  C01B13/10 ,  B01F3/04 ,  C02F101/10 ,  C02F103/00 ,  C02F1/66 ,  C02F1/78 ,  C02F11/12

Abstract: An ozone treatment apparatus includes: an ozone gas generator that generates ozone gas from raw material gas; a sludge pump that pressurizes sludge to be treated; an ejector in which the sludge to be treated, which is pressurized by the sludge pump, is injected; and a valve provided between the ozone gas generator and the ejector. The valve becomes in an open state when pressure on the former stage side is larger than pressure on the latter stage side by a specified value or higher. An ozone gas storage facility may be provided between the ozone gas generator and the valve. A sludge mixing tank installed in the latter stage of the ejector and a sludge circulation pump that connects an upper part of the sludge mixing tank and the latter stage of the sludge pump may be provided.

公开(公告)号：US09957170B2

公开(公告)日：2018-05-01

申请号：US14438805

申请日：2013-11-07

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Yasuhiro Nakamura ,  Yasutaka Inanaga ,  Akira Morikawa ,  Tokiko Yamauchi ,  Takao Tsurimoto ,  Hirotaka Muto ,  Gaku Oinuma ,  Masakazu Taki

IPC: C02F1/46 ,  C02F1/74 ,  C02F101/30 ,  C02F1/461

CPC classification number: C02F1/4608 ,  C02F1/74 ,  C02F2001/46171 ,  C02F2101/30 ,  C02F2201/003 ,  C02F2201/46175 ,  C02F2201/4619 ,  C02F2201/48 ,  C02F2305/023

Abstract: A water treatment device generates a bubble in water to be treated inside a treatment tank, and treats the water to be treated through use of radicals that are generated by bubble electric discharge caused via the bubble. The water treatment device includes main electrodes for forming a main discharge area between a first main electrode and a second main electrode, auxiliary electrodes for forming a preliminary discharge area between a first auxiliary electrode and a second auxiliary electrode, and a bubble generator generating a bubble in water to be treated through use of an externally supplied gas. When a bubble generated by the bubble generator passes through the preliminary discharge area, discharge is caused via the bubble, and, when the bubble in an excited state subsequently passes through the main discharge area, the bubble causes discharge again to generate radicals.

公开(公告)号：US11667551B2

公开(公告)日：2023-06-06

申请号：US16492479

申请日：2018-01-22

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Yoshihiro Nakayama ,  Seiji Noda ,  Tokiko Yamauchi ,  Nozomu Yasunaga ,  Kenro Mitsuda

IPC: C25B9/19 ,  C25B1/04 ,  C25B13/00 ,  C02F1/469 ,  C02F1/461 ,  C02F1/48

CPC classification number: C02F1/4695 ,  C02F1/46109 ,  C02F1/48 ,  C02F2201/002 ,  C02F2201/46105

Abstract: Provided is a water treatment device configured to perform a deionization treatment for the water to be treated, and the water treatment device includes a pressing member, a treatment container configured to store the water to be treated, a first electrode and a second electrode accommodated in the treatment container, a separator arranged between the first electrode and the second electrode, and a pair of collectors, which are accommodated in the treatment container, and are configured to apply a voltage to the first electrode and the second electrode. The pressing member is configured to press the first electrode and the second electrode in the treatment container.

公开(公告)号：US10961135B2

公开(公告)日：2021-03-30

申请号：US16531945

申请日：2019-08-05

Applicant: Mitsubishi Electric Corporation

Inventor： Yoshihiro Nakayama ,  Tokiko Yamauchi ,  Nozomu Yasunaga ,  Seiji Noda

IPC: C02F1/461 ,  C02F1/46 ,  C02F1/48 ,  B01D35/16

Abstract: A water treatment apparatus includes: a first granular electrode member and a second granular electrode member stored in a water treatment unit and provided so as to be separated from each other; a power supply unit which applies voltage between the first granular electrode member and the second granular electrode member so that ions contained in treatment target water supplied from one side of the water treatment unit are adsorbed to the first granular electrode member and the second granular electrode member; and a washing water supply pump which causes washing water to flow from the other side of the water treatment unit to the one side of the water treatment unit, thereby washing the first granular electrode member and the second granular electrode member, wherein the first granular electrode member and the second granular electrode member each include a plurality of flowable granular electrode members.

公开(公告)号：US20150251933A1

公开(公告)日：2015-09-10

申请号：US14438805

申请日：2013-11-07

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Yasuhiro Nakamura ,  Yasutaka Inanaga ,  Akira Morikawa ,  Tokiko Yamauchi ,  Takao Tsurimoto ,  Hirotaka Muto ,  Gaku Oinuma ,  Masakazu Taki

IPC: C02F1/46

CPC classification number: C02F1/4608 ,  C02F1/74 ,  C02F2001/46171 ,  C02F2101/30 ,  C02F2201/003 ,  C02F2201/46175 ,  C02F2201/4619 ,  C02F2201/48 ,  C02F2305/023

Abstract: A water treatment device generates a bubble in water to be treated inside a treatment tank, and treats the water to be treated through use of radicals that are generated by bubble electric discharge caused via the bubble. The water treatment device includes main electrodes for forming a main discharge area between a first main electrode and a second main electrode, auxiliary electrodes for forming a preliminary discharge area between a first auxiliary electrode and a second auxiliary electrode, and a bubble generator generating a bubble in water to be treated through use of an externally supplied gas. When a bubble generated by the bubble generator passes through the preliminary discharge area, discharge is caused via the bubble, and, when the bubble in an excited state subsequently passes through the main discharge area, the bubble causes discharge again to generate radicals.

Abstract translation: 水处理装置在处理槽内处理的水中产生气泡，并通过使用通过气泡产生的气泡放电产生的自由基来处理待处理的水。 水处理装置包括用于在第一主电极和第二主电极之间形成主放电区域的主电极，用于在第一辅助电极和第二辅助电极之间形成初步放电区域的辅助电极和产生气泡的气泡发生器 在通过使用外部供应气体处理的水中。 当由气泡发生器产生的气泡通过预备放电区域时，通过气泡产生放电，并且当激发态的气泡随后经过主放电区域时，气泡再次导致放电。