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：US12195369B2

公开(公告)日：2025-01-14

申请号：US17040634

申请日：2019-03-05

Applicant: Mitsubishi Electric Corporation

Inventor： Yoshihiro Nakayama ,  Eiji Imamura ,  Seiji Noda

IPC: C02F1/469 ,  C02F1/00 ,  C02F101/10

Abstract: This water treatment device includes: electrode units for performing adsorption/desorption of the impurity; a treatment tank having the electrode units disposed in an inside of the treatment tank; an upstream part for guiding the water into the inside; a downstream part for guiding the water so as to be discharged, the water having been subjected to the adsorption/desorption performed by the electrode units; a circulation pipeline, the circulation pipeline being for guiding water having been guided by the downstream part, to the upstream part; and a switching unit for switching between, on the basis of at least one of a water quality of the water having been guided to the downstream part or an electric state of the treatment tank, guiding the water having been guided by the downstream part, so as to be discharged, and guiding the water to the circulation pipeline.

公开(公告)号：US12037273B2

公开(公告)日：2024-07-16

申请号：US18286395

申请日：2021-04-26

Applicant: Mitsubishi Electric Corporation

Inventor： Yoshihiro Nakayama ,  Tadashi Saito ,  Kota Kurihara ,  Seiji Noda ,  Ryuki Yoshida ,  Masaru Takada

IPC: C02F1/469

CPC classification number: C02F1/4691

Abstract: An ion removal apparatus according to this disclosure performs a desalination treatment on a liquid and includes: a first electrode guide having an inlet allowing the liquid to flow in, a first electrode holder holding a first electrode that adsorbs an ion in the liquid, and an inflow passage serving as a flow passage connecting the inlet and the first electrode holder to one another; and a second electrode guide having an outlet allowing the liquid to flow out, a second electrode holder allowing the liquid passing through the first electrode holder to flow in and holding a second electrode that adsorbs the ion in the liquid, and an outflow passage serving as a flow passage connecting the outlet and the second electrode holder to one another.

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.