Mitsubishi Hitachi Power Systems, Ltd.

Wota Group LLC

Hayato Shin

Riki Kitagawa

Hiroyuki Yagita

Jun Hyodo

Junichi Minamiura

Yukinobu Yokota

A charging deviceof a circulating-water utilization systemto be constructed in a specific area includes: a wastewater amount measuring unitconfigured to individually measure an amount of wastewater discharged from each of water consuming members; a water-quality measuring unitconfigured to individually measure a water-quality index related to a water quality of the wastewater discharged from each of the water consuming members; and a circulating-water fee calculating partA configured to calculate a circulating-water fee of each of the water consuming members on the basis of the amount and the water quality of the wastewater discharged from each of the water consuming members.

Charging device of circulating water utilization system and circulating-water utilization system

A method of remotely monitoring a group of circulating-water utilization systems comprising a plurality of circulating-water utilization systems, includes: an operational-ratio detection step of detecting operational ratios of treatment vessels forming a treatment-vessel row of a purifying unit, for each of the plurality of circulating-water utilization systems constituting the group of circulating-water utilization systems; a data transmission step of transmitting data related to the operational ratios of the treatment vessels detected in the operational-ratio detection step via a transmission line; a data reception step of receiving the data related to the operational ratios of the treatment vessels transmitted in the data transmission step; and a data display step of displaying the data related to the operational ratios of the treatment vessels received in the data reception step.

Method and system for remotely monitoring a group of circulating-water utilization systems

A safety device of a recirculating-water utilization system to be constructed in a specific area includes: at least one of a circulating-water monitoring unit configured to monitor a water quality of circulating water purified by a purifying unit, or a treatment-vessel monitoring unit configured to detect abnormality of treatment vessels constituting the purifying unit.

Safety device for circulating water utilization system and circulating-water utilization system

A circulating-water utilization system () to be constructed in a specific area includes; a circulation channel () having a closed loop shape through which circulating water flows; a discharge channel () through which wastewater discharged from a water consumer () is discharged to the circulation channel (), the water consumer () being composed of water consuming members; a purifying unit () configured to purify the circulating water containing the wastewater flowing through the circulation channel (); a supply channel () configured to supply the circulating water purified by the purifying unit () to the water consumer (); water intake parts () for intake of the circulating water from the supply channel (), disposed on the respective water consuming members; and sterilizing units () disposed on the respective water intake parts (), and configured to individually sterilize the circulating water to be supplied to the respective water consuming members.

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Tokyo, Japan

Hayato Shin