Tokyo Electric Power Co. had to halt some decontamination work at its crippled Fukushima No. 1 nuclear power plant after a water treatment pump malfunctioned.
Tokyo Electric Power Co. had to halt some decontamination work at its crippled Fukushima No. 1 nuclear power plant after a water treatment pump malfunctioned.
The plant operator said Feb. 26 the trouble was due to one of the ALPS (advanced liquid processing system) devices that were undergoing test operations. ALPS can remove 62 kinds of radioactive substances from contaminated water.
According to TEPCO, an electric system malfunction triggered an alarm at 12:30 p.m. on Feb. 26. As a result, one of the pumps that send water to equipment to absorb radioactive substances stopped.
TEPCO said it has stopped decontamination work at the pump and is investigating the cause of the problem. Other ALPS devices are still in operation, it added.