Japan reactor likely wrecked by seawater during 2011 accident — Holes penetrated through metal — Problems from microorganisms?

Published: November 21st, 2012 at 2:43 am ET
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(Subscription Only) Title: Hamaoka reactor likely wrecked in seawater accident
Source: Asahi
Author: By JIN NISHIKAWA
Date: November 21, 2012

A restart may be impossible [for a reactor at Hamaoka nuclear plant in Shizuoka Prefecture] without substantial repairs, after an accident during a shutdown procedure last year in which hundreds of tons of seawater flooded equipment including the central pressure vessel. […]

The incident occurred while workers were shutting down the reactor on May 14, 2011. […]

An estimated 5 tons of seawater entered the reactor pressure vessel itself.

Once inside, the seawater corroded pumps and driving mechanisms, key components that insert and remove control rods as operators regulate the rate of nuclear fission. The water also corroded 40 holes in the bottom and walls of the condensate storage tank, which stores cooling water for reactor operations. Some of the holes penetrated the tank’s metal lining. […]

The panel also highlighted a need to search for other problems including possible corrosion-like damage from microorganisms in the seawater. […]

The No. 5 reactor first went online in 2005. […]

See also: [intlink id=”large-amount-saltwater-found-reactor-5-hamaoka-nuclear-plant-measures-being-keep-reactor-eroding” type=”post”]{{empty}}[/intlink]

Published: November 21st, 2012 at 2:43 am ET
By

8 comments

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8 comments to Japan reactor likely wrecked by seawater during 2011 accident — Holes penetrated through metal — Problems from microorganisms?

  • TheBigPicture TheBigPicture

    Time-bomb waiting to go off. Train-wreck in the making. Operate a reactor and risk losing your country. It's happening already, in fact.

  • The more I read about Asian expertise, the more I remember they lost WW2 to two drug addicts..

  • or-well

    Restart? Nuts! Chubu Electric's in trouble.
    Just did a quick search "Hamaoka Reactor 5" – all bad.

  • JHewes76 JHewes76

    Insane. They have gone mad. Japan's military has to step up and take leadership away form these people if ANY of us are to have a chance.

  • bwoodfield bwoodfield

    With the continual notices of leaks, contamination and exposure it is looking more an more like the entire country of Japan is going to turn out like the exclusion zone around the Chernobyl reactor. The only difference is the area effected in the Ukraine and Belarus was low population density. This is causing the same problems in one of the highest population areas in the world.

  • JHewes76 JHewes76

    WHAT? Seawater is corrosive? No waaay, LOL

    (And they are scientists… they didn't know that would happen?)

  • patb2009

    It's done for.

    Well, maybe it's all for the best.