Mitsubishi Electric Corporation

Eiji Imamura

Nozomu Yasunaga

Seiji Noda

Yoshihiro Nakayama

Takumi Suda

Wataru Yoshida

Yuki Sato

Yohei Ueno

Tokiko Yamauchi

Yoshifumi Hayashi

Go Wakamatsu

Takushi Kawada

Natsumi Hatta

Kenta Shimoda

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.

Water treatment device

A water treatment plant which performs water treatment using a water treatment device includes an imaging device, a processing device, and a control device. The imaging device images a water treatment environment of the water treatment device and outputs image data obtained by imaging. The processing device causes an arithmetic device which performs an arithmetic operation using one or more calculation models generated by machine learning to execute the arithmetic operation employing the image data output from the imaging device as input data of the one or more calculation models. The control device controls the water treatment device on the basis of output information output from the arithmetic device by executing the arithmetic operation.

Water treatment plant and method for operating water treatment plant

An operation support device includes a computation unit that: calculates cost of separation treatment that depends on deterioration of a separation membrane using a cleaning efficiency model expressing deterioration of the separation membrane relative to the number of cleaning events, the separation membrane being configured to remove removal target from sewage; calculates operation cost using the cost of separation treatment, cleaning cost for one cleaning event for the separation membrane, and replacement cost for one replacement event for the separation membrane; determines, based on the operation cost, a first reference value used for determining whether to clean the separation membrane and a second reference value used for determining whether to replace the separation membrane; and calculates cleaning schedule and replacement schedule for the separation membrane using the first reference value and the second reference value determined.

Operation support device and operation support method

A water treatment control system includes an aerobic tank in which aerobic treatment is carried out, an aerobic tank aeration device that aerates to-be-treated water in the aerobic tank, a membrane filtration tank including a separation membrane that filters the to-be-treated water treated in the aerobic tank, a membrane filtration tank measurement instrument that measures the ammonia concentration of the to-be-treated water in the membrane filtration tank, as a membrane filtration tank ammonia concentration measurement value, and an aerobic tank aeration air volume calculation device that sets the aerobic tank aeration air volume of the aerobic tank aeration device on the basis of the membrane filtration tank ammonia concentration measurement value.

Water treatment control system

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.

Water treatment device and water treatment method

Growing community of inventors

Chiyoda-ku, Japan

Eiji Imamura