As a company specializing in operation and maintenance of auxiliary nuclear power station equipment, radiation management, radioactive waste management, and chemical analysis, we apply our abundant knowledge and advanced technical skill to ensuring safe, reliable operation of nuclear power stations. We are also engaged in fire protection activities and inspection of fire protection equipment, and offer broad support to nuclear power stations ranging from administrative assistance during their operation to radioactive waste treatment and decommissioning measures.
Operation and Maintenance Management
We are involved in tasks which include operation and inspection of equipment to produce fresh water and pure water used by nuclear power stations, inspection and cleaning of water intakes, incineration to reduce the amount of combustible materials in radiation controlled areas, and solidification of concentrated waste fluid in storage drums with asphalt after they have been filled.
Chemical Analysis and Environmental Measurement
We analyze water and lubricating oils used at nuclear power stations, inspect monitoring instruments used for water treatment, and act as witnesses for the reception of chemical substances. We also measure radiation in the environments surrounding nuclear power stations, inspect equipment used to measure the radiation levels of environmental samples, and collect and prepare samples to be used for such measurement.
Radiation Management and Radiation Measuring Instrument Maintenance
We measure the radiation exposure doses of workers in radiation controlled areas and the doses found in work environments, and perform inspections when any items are taken out of radiation controlled areas. We also review documents related to managing access into radiation controlled areas, and inspect, repair, and calibrate radiation measuring instruments inside and outside of power stations.
Fire Protection
To ensure that initial fire protection activities can be carried out quickly if a fire occurs at a nuclear power station, we organize private fire brigades and conduct monitoring activities on a 24-hour basis. We also inspect and maintain fire protection equipment and provide education and training so that fire protection measures can be performed reliably in the event of fires.
Radioactive Waste Management, and Decontamination, Washing and Cleaning in Radiation Controlled Areas
In order to dispose of radioactive waste generated by power stations, we safely and reliably inspect them, and transport them from power stations to disposal sites (Rokkasho Village, Aomori Prefecture) after loading them into containers. We also perform cleaning procedures in radiation controlled areas, and wash and store work clothes used during work operations.
Decommissioning
In order to conduct decommissioning safely and reliably, we measure and evaluate the volumes of waste and their radioactive contamination levels in advance, and promote investigations related to waste treatment and measurement equipment, as well as logistics operations. We also carry out technical development which includes selecting the methods regarding decontamination technology for chemical or mechanical decontamination, and confirming the performance of such technology.
