Showing posts with label water. Show all posts
Showing posts with label water. Show all posts

Friday, August 23, 2013

Fukushima: water reservoir under plant is much bigger, much more contaminated

From ABC (via EneNews):

Deep beneath Fukushima's crippled nuclear power station, a massive underground reservoir of contaminated water that began spilling from the plant's reactors after the 2011 earthquake and tsunami has been creeping slowly toward the Pacific.

Now, 2 1/2 years later, experts fear it is about to reach the ocean and greatly worsen what is fast becoming a new crisis at Fukushima: the inability to contain vast quantities of radioactive water.

The looming crisis is potentially far greater than the discovery earlier this week of a leak from a tank that stores contaminated water used to cool the reactor cores. That 300-ton (80,000-gallon) leak is the fifth and most serious from a tank since the March 2011 disaster, when three of the plant's reactors melted down after a huge earthquake and tsunami knocked out the plant's power and cooling functions.

But experts believe the underground seepage from the reactor and turbine building area is much bigger and possibly more radioactive, confronting the plant's operator, Tokyo Electric Power Co., with an invisible, chronic problem and few viable solutions. Many also believe it is another example of how TEPCO has repeatedly failed to acknowledge problems that it could almost certainly have foreseen — and taken action to mitigate before they got out of control.

(... continues).


Regardless. What is clear is that you can't put gates to the sea, or in general to the flow of water (and air) through the planet. Each time a nuclear plant is built a huge danger is created because, among other reasons, there's always water nearby (they need it in huge amounts for the plant to work) and while in inland waters this is a huge problem hard to control, at the seaside it is simply total madness because the water table is in direct contact with the sea and almost indistinct from it. 

There's no good solution for Fukushima, which is totally unmanageable and off the scale - other than evacuating all North Honsu (and probably also all the Pacific coast of North America, where the vast majority of all radiation goes to). What we can still do is to struggle to close all other nuclear plants and impede that new ones are opened.

However we face the annoying issue of nuclear weapons (the real reason behind nuclear energy) being too desirable for every power-mongerer. So we have to work even further and harder into subverting the social relations of power radically if we really expect to ever solve this suicidal process of nukes and their terrible and long term consequences.

Note: I'm in general letting the media to speak out on Fukushima for a change. You will excuse me for partly ignoring the stream of news that is almost drowning us these days, however, except minor details, this is about the same I (and even more so specialist bloggers) have been telling since March 2011. So I'd suggest that if you're interested in the detail of the latest developments to follow now (as before) the specialized Fukushima blogs. Here the info will be (sadly) rather sparse because, you know, the World is so big and I'm so small in comparison... that I can't dedicate my time to every single piece of news.

Sunday, July 14, 2013

Switzerland: radioactive substance found in Lake Biel (water source)

The source is a water discharge by Muehleberg nuclear plant, which is located some 20 km upstream the Aar river, some 13 years ago.

Geologists working in a unrelated project found cesium-137 at levels claimed to be not harmful but still well above what the power plant is allowed to release, especially considering that Lake Biel water is used for human consumption. 

Greenpeace demanded that the Bern Canton prosecutor acts against the culprits. They also raised the matter on how the Federal Nuclear Safety Inspectorate missed the fault or, very possibly, decided to hide the incident.

The Muehleberg plant is located not far from the Swiss capital Bern. Switzerland has already voted to gradually close all nuclear power plants in the next two decades.

Source: Fox News (via EneNews).


Update: EXSKF has more details: the radioactive releases were not just one but three: mid-1970s, early 1980s and around the year 2000. However even more important were the the atmospheric fallout from Chernobyl (1986) and widespread nuclear testing around 1963:


The full study (open access) is available at Springer Link.

The absolutely mad radiation figures of Fukushima's ongoing 'China syndrome' - growing extremely fast!

William Boardman at Dissident Voice explains that we do not need to know what exactly is a measure such as Bequerel/liter (Bq/l), we just need to know that the Japanese Nuclear Regulatory Authority (NRA) considers 10 Bq/l the highest safe limit in regular drinking water (60 Bq/l for nuclear plants' drinking water).

Probably because the corium has reached the water table under the collapsed Fukushima Daiichi NPP, the radiation levels are spiking like crazy these days:

On July 5, radiation levels at Fukushima were what passes for “normal,” which means elevated and dangerous, but stable, according to measurements by the owner, the Tokyo Electric Power Company (TEPCO).
On July 8, radiation levels had jumped about 90 times higher, as typically reported. TEPCO had no explanation for the increase.
On July 9, radiation levels were up again from the previous day, but at a slower rate, about 22 per cent. TEPCO still had no explanation.
On July 10, Japan’s Nuclear Regulation Authority (NRA) issued a statement saying that the NRA strongly suspects the radioactive water is coming from Fukushima’s Reactor #1 and is going into the Pacific.

Then he provides some truly scary TEPCO (official) figures for July 8th:

9,000 becquerels per liter — On July 8, according to TEPCO, the company measured radioactive Cesium-134 at 9,000 becquerels per liter. Since TEPCO characterized this as 90 times higher than on July 5, the implication is that the earlier reading (about 100) was less than twice as toxic as the allowable limit and only 10 times more toxic than drinking water for civilians.

11,000 becquerels per liter – TEPCO’s measurement of Cesium-134 on July 9.
18,000 becquerels per liter — TEPCO measurement of Cesium-137 on July 8.
22,000 becquerels per liter – TEPCO’s measurement of Cesium-137 on July 9.
900,000 becquerels per liter – TEPCO’s measurement of the total radioactivity in the water leaking from Reactor #1. This radiation load includes both Cesium isotopes, as well as Tritium, Strontium and other beta emitters. There are more that 60 radioactive substances that have been identified at the Fukushima site. 

So, from almost safe levels (with many question marks because of the usual TEPCO obscurantism) on July 5th, the radiation being leaked to the Pacific Ocean had jumped a week ago (Jul 8-9) to 90,000 times the safe level. In just few days!

The latest official figure (from July 11th) is mirrored at Fukushima Diary, and is much worse (of course): 150,000,000 Bq/l, i.e. 15 million times the safe level!!!

Let's chew on these amazingly horrifying figures:
  1. July 5th: ~100 Bq/l (x10 safe level)
  2. July 8th: 900,000 Bq/l (x90,000 safe level: grew an average of almost 30,000 Bq/l per day)
  3. July 11th: 150 million Bq/l (x15,000,000 safe level: grew an average of almost 50 million Bq/l per day)
  4. If this explosive rhythm continues, today it should be like what?!

I honestly have no idea if and when this "spike" will reach its limit and what will happen afterwards (not declining surely), what I know is that this situation is totally out of control and is absolutely unprecedented. Humankind and all Earth is suffering the most ridiculously crazy radioactive pollution ever. 

And I also know that this is not in the first page of all newspapers as it should. Just by not looking at it the problem is not going to be solved at all! It may not even have any solution but whatever the case it must be talked about because, at the very least, the survivors (if there are any, an I'm beginning to doubt it) must learn from this cruel lesson. 

Wednesday, July 10, 2013

Fukushima: corium hitting the water table

I guess it was inevitable as the process of China syndrome goes on that the  corium (amorphous mass of nuclear-reacting material from the destroyed reactors) would eventually reach the water table, which is not far under the foundations of the seaside destroyed facility.

China syndrome process, from Roundtree7 (good article)

Unlike what happened in Chernobyl, where this process was at least delayed by means of the construction of a new underground floor at the risk of the lives of many workers, in Fukushima that has not been attempted at all, plausibly because the water table was simply too shallow. The whole consequences of the interaction of this extreme heat source with the water table are not yet known (will it explode?) but one thing is clear: the radiation levels are climbing fast, especially in the water:

Water sampled from the well Monday contained 9,000 becquerels of cesium-134 per liter and 18,000 becquerels of cesium-137, both about 90 times the levels found Friday, Tepco said. The well is near the turbine building for reactor 2 and about 25 meters from the plant’s harbor.

TEPCO is dissimulating these developments by means of not updating their English language site, although the scary data is anyhow available in Japanese (still not really reliable, as Mochizuki points out). 

Whatever they admit to, what is clear is that two years after the initial catastrophe the situation is not under control and looks like it will never be, releasing more and more radiation to the Pacific Ocean and the atmosphere in a destruction spiral that threatens all Humankind.