Expert warns of collapse at Fukushima reactor: “It would be the end of Japan”… New photos show serious structural damage at Unit 2… “It’s a fantasy” that they can decommission plant — AP: Melted fuel has broken pieces of structure in containment vessel (VIDEO)

Published: March 10th, 2017 at 1:44 pm ET
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Interview with Dr. Helen Caldicott on Nuclear Hotseat hosted by Libbe HaLevy, Feb 22, 2017 (emphasis added):

  • Dr. Caldicott: “Those incredibly high measurements [of radioactivity recently detected in Fukushima Daiichi's Reactor No. 2 containment vessel] mean, I think almost certainly, that they will never be able to clean it up or decommission it… Talk about decommissioning and cleaning it up in 100 years… I think it’s a fantasy.”
  • Host: “What was also revealed in these new photos is what appears to be a hole in a grate at the bottom of the Unit 2 reactor containment vessel. It’s variously been described as one meter or two meters in diameter. What does that mean?”
  • Dr. Caldicott: … “I spoke to Arnie Gundersen, who’s a nuclear engineer, and he said that the robot did pick up structural damage to the building of Unit 2, which means it makes it unstable should there be another earthquake greater than 7 on the Richter scale — which then means the building could collapse, which then means that would collapse onto the molten core, and also with the spent fuel rods which are incredibly radioactive in the spent fuel pool, they would go down as well. A huge amount of radiation would be released, such that it would be the end of Japan and certainly, very much radioactive fallout in the Northern Hemisphere such that I would probably get my family from Boston to come straight away to Australia.”

Yomiuri Shimbun, Mar 7, 2017: On the floor under the pressure vessel of the [No. 2] reactor, a large hole was discovered. It is believed to have been created when nuclear fuel fell down.

AP, Mar 2, 2017: A robot sent inside the Unit 2 containment vessel last month could not reach as close to the core area as was hoped for because it was blocked by deposits, believed to be a mixture of melted fuel and broken pieces of structures inside… [TEPCO] needs to know the melted fuel’s exact location as well as structural damage in each of the three wrecked reactors… Earlier probes have suggested worse-than-anticipated challenges… “We should think out of the box so we can examine the bottom of the core and how melted fuel debris spread out,” [TEPCO's Naohiro] Masuda told reporters… [E]xperts are still trying to figure out a way to access the badly damaged Unit 3. TEPCO is struggling with the plant’s decommissioning.

See also: Expert: "Potential Global Catastrophe" from Fukushima Unit 2 highly radioactive fuel... Reactor could be destroyed, "making Tokyo area uninhabitable"... This is "most dreaded" scenario -- Already "partially liquefying" below reactors

Full recorded interview with Dr. Caldicott here (at ~22:00 in)

Published: March 10th, 2017 at 1:44 pm ET
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170 comments

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170 comments to Expert warns of collapse at Fukushima reactor: “It would be the end of Japan”… New photos show serious structural damage at Unit 2… “It’s a fantasy” that they can decommission plant — AP: Melted fuel has broken pieces of structure in containment vessel (VIDEO)

  • rogerthat

    https://www3.nhk.or.jp/nhkworld/en/news/20170312_21/

    Fukushima Daiichi reactor cooling system untested

    An emergency cooling system for the No.1 reactor at the Fukushima Daiichi nuclear plant was set at a mode that was difficult to start for nearly 30 years until 2010.

    The No.1 reactor was the first of the 3 reactors at the plant to melt down in the 2011 accident.

    The isolation condenser system was automatically activated after the massive earthquake 6 years ago, and operators used it to cool down the reactor.

    However, they failed to make full use of it, and misjudged its operating status after power was lost in the tsunami.
    The subsequent meltdown of the No.1 reactor caused a hydrogen explosion.

    NHK interviewed officials from Tokyo Electric Power Company and requested the disclosure of information. NHK found that the setting of the emergency cooling system was changed in 1981 to make it difficult to start.

    The isolation condenser is supposed to switch on automatically when the pressure inside the reactor rises for some reason. But its settings were altered so that another device for reducing internal pressure would start first.

    There is no record of the isolation condenser being used for nearly 30 years, even when problems occurred.

    Safety measures were reviewed the year before the 2011 accident, and the cooling system was reset to make it easy to start. …


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    • rogerthat

      However, it was never actually tested before the 2011 accident.

      The utility says it cannot confirm why the setting was changed in 1981 as there are no records, and it was not tested because there was a risk of a radioactive leak if the system became damaged.

      The company says employees were told about the isolation condenser in their training courses.

      Hosei University Professor Hiroshi Miyano says people cannot use such a device without experience, and this may have been a factor behind the scale of the accident. He says safety equipment testing and training should be reviewed at other nuclear plants.


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    • Yepper… It was a bad design from the start…

      Core water out of containment?

      Washing across the street and into the turbine buildings??

      And then into the Pacific???

      https://youtu.be/iCUW3nqouzs

      If that (those) building(s) fall with all that contamination another death cloud will find it's way around the world…

      Ya just can't seal em up, even if you try what are you going to do with the gasses? That pressure has to go somewhere…

      It (the over pressure) will go into the ground…

      Time to man up…

      Here's a great example…

      https://youtu.be/FIRT7lf8byw?t=42s

      …Just for laughs :-)

      Wowsers…


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  • rogerthat

    https://www.youtube.com/watch?v=A3Xz5_k_f_g

    Fukushima fishing industry suffers years after nuclear disaster
    CGTN America

    Published on Mar 12, 2017
    Fishermen have been among the hardest hit following the meltdowns at the Fukushima nuclear power plant six years ago. CGTN's Terrence Terashima reports from Iwaki City. …


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  • TIME TIME

    PLAN FOR CONTAINMENT OF FUKUSHIMA
    http://www.supermodeling.tv/FUKIUSHIMA_REACTOR_CONTAINMENT.html
    NEWS there are ways to contain the radiation


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