Abstract: A charging device 10 of a circulating-water utilization system 1 to be constructed in a specific area includes: a wastewater amount measuring unit 18a configured to individually measure an amount of wastewater discharged from each of water consuming members; a water-quality measuring unit 18b configured 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 part 10A 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.

Abstract: A method of remotely monitoring a group of circulating-water utilization systems comprising a plurality of circulating-water utilization systems 1, includes: an operational-ratio detection step of detecting operational ratios of treatment vessels forming a treatment-vessel row of a purifying unit 8, 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 60; 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.

Abstract: 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.

Abstract: A circulating-water utilization system (1) to be constructed in a specific area includes; a circulation channel (2) having a closed loop shape through which circulating water flows; a discharge channel (4) through which wastewater discharged from a water consumer (3) is discharged to the circulation channel (2), the water consumer (3) being composed of water consuming members; a purifying unit (8) configured to purify the circulating water containing the wastewater flowing through the circulation channel (2); a supply channel (6) configured to supply the circulating water purified by the purifying unit (8) to the water consumer (3); water intake parts (10) for intake of the circulating water from the supply channel (6), disposed on the respective water consuming members; and sterilizing units (11) disposed on the respective water intake parts (10), and configured to individually sterilize the circulating water to be supplied to the respective water consuming members.

Abstract: A circulating-water utilization system (1) to be constructed in a specific area includes; a circulation channel (2) having a closed loop shape through which circulating water flow's; a discharge channel (4) through which wastewater discharged from a water consumer (3) is discharged to the circulation channel (2), the water consumer (3) being composed of water consuming members; a purifying unit (8) configured to purify the circulating water containing the wastewater flowing through the circulation channel (2); a supply channel (6) configured to supply the circulating water purified by the purifying unit (8) to the water consumer (3); water intake parts (10) for intake of the circulating water from the supply channel (6), disposed on the respective water consuming members; and sterilizing units (11) disposed on the respective water intake parts (10), and configured to individually sterilize the circulating water to be supplied to the respective water consuming members.

Abstract: A method of remotely monitoring a group of circulating-water utilization systems comprising a plurality of circulating-water utilization systems 1, includes: an operational-ratio detection step of detecting operational ratios of treatment vessels forming a treatment-vessel row of a purifying unit 8, 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 60; 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.

Abstract: A charging device 10 of a circulating-water utilization system 1 to be constructed in a specific area includes: a wastewater amount measuring unit 18a configured to individually measure an amount of wastewater discharged from each of water consuming members; a water-quality measuring unit 18b configured 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 part 10A 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.

Abstract: A safety device 10 of a recirculating-water utilization system 1 to be constructed in a specific area includes: at least one of a circulating-water monitoring unit 32 configured to monitor a water quality of circulating water purified by a purifying unit 8, or a treatment-vessel monitoring unit 36 configured to detect abnormality of treatment vessels constituting the purifying unit 8.

Abstract: The present invention relates to a large floating structure used for a marine airport and the like and, more particularly, to a large floating structure in which the large floating structure itself has a wave absorbing function, whereby the need for a breakwater etc. is eliminated, and the installation of a separate wave absorbing structure at the outer periphery of the large floating structure is not needed, whereby an upper deck can be utilized effectively. For this purpose, under an extending portion on the up-wave side of the upper deck of large floating structure, for example, many box-shaped floating bodies arranged in a zigzag form and lattice-shaped connecting members are provided as a wave absorbing structure depending from the extending portion.