Radioactive Water Leaked at Takahama 4 Nuclear Reactor

 Radioactive Water Leaked at Takahama 4 Nuclear Reactor

Workers with Kansai Electric Power Co. (KEPCO) in Japan discovered a puddle of radioactive water on the floor of the Takahama 4 nuclear reactor.
An alarm sounded when coolant in the chemical and volume control system was passed through a boron thermal regeneration system before an increase of the reactor coolant system temperature. Water supply to the boron thermal regeneration system ended and a worker began field inspection. He found a puddle on the floor in front of the condensate demineralizer.

In addition to the puddle, workers found water had leaked on the floor of the auxiliary condensate building. In total, workers believe about 34 litres of water leaked, and KEPCO said the estimated amount of radioactivity in the puddle is below one-two hundredth of Japan’s threshold level. An investigation into the cause of the leak is underway.
Both units shut down in 2011 following the disaster at the Fukushima Daiichi nuclear power plant. Takahama 3 restarted at the end of January, and refueling started at Unit 4 at the same time.
Subscribe to Nuclear Power International magazine   

Did You Like this Article? Get All the Energy Industry News Delivered to Your Inbox

Subscribe to an email newsletter today at no cost and receive the latest news and information.

 Subscribe Now


Making DDoS Mitigation Part of Your Incident Response Plan: Critical Steps and Best Practices

Like a new virulent strain of flu, the impact of a distributed denial of service (DDoS) attack is...

The Multi-Tax Challenge of Managing Excise Tax and Sales Tax

To be able to accurately calculate multiple tax types, companies must be prepared to continually ...

Operational Analytics in the Power Industry

Cloud computing, smart grids, and other technologies are changing transmission and distribution. ...

Maximizing Operational Excellence

In a recent survey conducted by PennEnergy Research, 70% of surveyed energy industry professional...