This question kept coming up repeatedly in forums and blogs in the beginning. This is from PF.
tcups
Pg39) March 20th
Re: Japan Earthquake: nuclear plants
On the live feed, it was just confirmed that there were high-level radioactive debris on the ground around unit 4 hampering the efforts to spray water
on the reactors and SFP. Tanks with bulldozer blades are to be used to clear the debris to make access possible. If the reactor cores are intact and
the radiation released was only from vented steam, I wouldn't expect high-level debris requiring shielded metal tanks to remove them to be necessary.
This sounds more like the contents of the SFPs may be scattered about, does it not?
What other high level debris might be scattered by explosions that spared the reactor cores other than spent fuel rods?
The post above is from the 20th of March. They couldn't bring in the putzmeister to water the SFP because of high rads. They had to bring in a
specially lined tank with probably one operator covered in the best protection afforded.
When first reading this I assumed it had to be spent fuel rods, until the first reactor building diagram layouts hit the net, and then it was obvious
that the SFPs were in the far other side of the building and at least 10 feet below the opening. Then videos in April showed no damage to the rods in
the pool, confirming that it wasn't spent fuel. So I theorized that a section of the reactor cap from R3 had been blown free over R4 and landed in the
back area near the transformers. But the R3 blast video kept disputing that one too, and it doesnt appear that there is a large chunk of reactor or
anything landing there.
Then I saw the photos of what looks like the same kind of slag (that was erroneously called poolium and is now refered to by me as effium from here
after) pouring out the right side of the section of back building between the reactor building and the turbine building. And I remembered that this
area was the only area that had been roped off since the first week of the disaster until July or August. And it was where the first 1 Sv piece of
something was found I think in late May that can be seen in third pic.
The pics below are I think from Aug maybe later. They cut out the pipes from R4s TB and there is an access lane. The area that is still sectioned off
is to the far right and has been dug out.
another shot I posted early fall. Late summer again and that area between R4 and the southend complex is where all the digging stuff with long arms
was working.
This project was one of the first they undertook. And why all the bright unexplained lights on that area this summer. The effium on both the north and
southeast sides of R4 were their primary concerns. For me this pretty much answers the last two mysteries needing to be solved. At least as far as the
R4 is concerned.
A) I couldn't put together why the area from the R4 turbine building and back of reactor over to the 4 stack and Exhaust House (EH) was cordoned off
for so long. Its one of the reasons I examined the EH so closely, I figured whatever the problem was it had to come from there. Then the cordoned off
area got moved in towards R4's back building and 4's TB, allowing access up the road, and eliminating EH as the concern.
I believe they may have reduced the levels of contamination by bulldozing it with the tank, but just enough for a putzmeister to get close. (Was the
putzmeister bot controlled or was there an operator inside. it appears bot in the pic below). That was a serious load of slag, a friggin river of
radiation, and it took them most of the summer to get rid of it. Thats why we dont see any photos of that area in the Valley of Death all summer. Im
assuming its whats buried underneath the new parking lot in front of R1
and B) Why did one of the electrical feed lines from the Tohoku Nuclear Power Line go to the south wall of either R4s back building or the TB. (The
other two went to the CSFP and EH which made sense as feeds into the UC). I still dont know what the connection is, but it looks like R4 and 4s TB
are intricately connected to the UC. As the last reactor system built in the Valley of Death this too now makes sense.
Another question answered is why they refused to release thermals until after the 20th. Four was too hot. Way too hot. The pool of slag in the
southeast corner alone would take a while to cool and generate big heat irrespective whether it was seriously active. It had to be buried first.
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And as an aside, AC, I think the video from India is misdated, and is actually from the afternoon of the 14th, and that steam explosion/expulsion is
coming from R3. Not sure though. need to do more research.
edit on 5-1-2012 by zworld because: (no reason given)
edit on 5-1-2012 by zworld because: (no reason given)