This video is called Fukushima melt-through – DANGER.
Three months after the March 11 earthquake that devastated northern Japan, the nuclear crisis at the Fukushima Dai-ichi plant is far from over. Yet the worst nuclear disaster since the 1986 Chernobyl meltdown in the Ukraine has all but disappeared from the media, amid a concerted effort to play down its implications and cover up the underlying causes: here.
Fukushima nuclear plant may have suffered ‘melt-through’, Japan admits: here.
From the Wall Street Jounal in the USA:
JUNE 18, 2011, 1:08 A.M. ET
Tepco Suspends Water Treatment Operation
By DAISUKE WAKABAYASHI
TOKYO—Tokyo Electric Power Co., the operator of the damaged Fukushima Daiichi nuclear power plant, said it halted the use of a new system for decontaminating highly radioactive water after levels of radiation in one part of the system rose faster than expected.
The suspension came only five hours after Tepco started operation of the system, which aims to reduce the vast amounts of irradiated water at the facility. The pools of highly radioactive water are a major obstacle to stabilizing the stricken power plant.
The latest hiccup reflects the ongoing struggle to get the reactors stabilized even as Tepco stands by its target of achieving a “cold shutdown” of the three most damaged reactors by mid-January 2012.
Tepco started operation of the new system, which incorporates U.S. and French technology, at 8 p.m. local time Friday, and then halted its use at 12:54 a.m. local time Saturday.
A Tepco spokesman said it is still unclear when it will restart the decontamination system.
The problem stemmed from the levels of radiation in a machine designed to absorb cesium. The radiation levels had reached a stage requiring a change of the filtering cartridges.
Tepco said it found that one of the cartridges was clogged with radioactive sludge and it is now trying to flush down the clogs in order to resume normal operations.
Separately, Japan’s Ministry of Economy, Trade and Industry said it has verified the implementation of additional safety steps at nuclear power plants in Japan. More than 30 of Japan’s 54 commercial reactors are not in operation because checkups on the plants had not been completed following the March 11 disasters.
The government also implemented additional safety measures in the case of damage to the reactor cores such as steps to prevent hydrogen explosions from happening inside the facilities. In order to resume operation at an idle reactor, local communities around the plants must now sign off on the resumption of service.
The ministry’s announcement excludes the Fukushima Daiichi facility.
US orders news blackout over crippled Nebraska Nuclear Plant: report here.
Radioactive Tritium Leaks Found at 48 US Nuclear Sites: here.
The US Nuclear Regulatory Commission (NRC) routinely fails to detect leaks of radioactive water from power plants and such leaks are likely to continue, a Senate report concluded on Tuesday: here.