Published on Jan 31, 2014
Strontium absorbent to be tested in Fukushima
Workers at the crippled Fukushima Daiichi nuclear plant are trying to contain leaked and leaking radioactive wastewater in the site. They are using various approaches.
As part of their efforts, they will examine how much an absorbent material placed underground can remove radioactive strontium from leaked wastewater.
The plant has seen a string of radioactive water leaks from storage tanks starting last August. Workers have taken countermeasures, including removing soil from around the tanks. But high levels of radioactivity were detected in groundwater near a tank that leaked large amounts of radioactive water.
TEPCO to look for more leaks at Fukushima reactor
The operator of the Fukushima Daiichi nuclear plant is slowly finding out more about the damage at one of the reactor containment vessels. The destruction was caused by 2011 accident.
To cool molten nuclear fuel in their containment vessels the operator is injecting water into the No.1 to 3 reactors. Because the circulation system was destroyed by the accident the water is leaking from the vessels and pooling in the reactor and other connected buildings.
The engineers are investigating leaks in a number of places in the containment vessel that houses the core at the No.1 reactor.
TEPCO to lower radiation levels at plant perimeter
Japan’s Nuclear Regulation Authority has urged the operator of the damaged Fukushima Daiichi plant to lower radiation levels at the plant’s perimeter.
Radiation levels measured at some locations were more than 8 millisieverts on an annual basis. The reading is 8 times the limit of 1 millisieverts per year set by the authority.
The levels rose as the number of storage tanks for radioactive water at the plant increased and additional ones were placed near the perimeter.
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