Fukushima Daiichi: the situation (one year) after (ASN and IRSN)

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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by moinsdewatt » 11/03/16, 19:56

Five years on, Fukushima remains a huge challenge for Japan

11 March 2016 Le Figaro

INFOGRAPHICS / VIDEO - The 11 March 2011, a powerful earthquake hit Japan, triggering a tsunami and a nuclear accident whose assessment of the consequences is not over. Five years later, hundreds of thousands of people remain exiled and the technical means to clean the plant and the irradiated areas remain to be imagined.
......................

http://www.lefigaro.fr/sciences/2016/03 ... -japon.php


Five years after Fukushima, the accident is still ongoing

By Ludovic Dupin Factory New the 11 March 2016

Japan is gathering for the fifth anniversary of the 11 2011 tsunami and the nuclear accident it caused. At the Fukushima site, work continues as the three damaged reactors are barely under control.

The 11 March 2011, an earthquake and a tsunami hit Japan. Flooding in the Fukushima power plant leads to the loss of power and water supply. Hearts heat up, eventually melt, releasing massive quantities of hydrogen. The gas explodes, disemboweling three of the site's six reactors.

Since then, the Tepco operator has been working to stabilize the situation of the site with a view to dismantling it. "Five years after the accident, efforts are continuing to control the installations in a still difficult context linked to a still limited knowledge of the condition of reactors and damaged buildings", judges the Institute for Radiation Protection and Nuclear Safety (IRSN) in an information note compiling the state of knowledge.


He adds : "Groundwater pollution due to degradation of containment barriers still results in diffuse radioactive releases to the environment".

Fuels still cooling

"Reactors 1, 2 and 3 are maintained at a temperature between 20 ° C and 50 ° C by an injection of about 5 cubic meters per hour of fresh water per reactor", assures IRSN, which specifies that an injection of nitrogen is maintained in the containment chambers to avoid any new risk of explosion.

The swimming pools, meanwhile, are cooled by a closed water circuit in order to stay below 30 ° C. The emptying of the spent fuel they contain should have started in 2015, but Tepco had to postpone these operations. "The withdrawal of fuels present in the swimming pools (is planned) from 2017 for the swimming pool of reactor n ° 3, from 2020 for those of reactors n ° 1 and n ° 2", reports IRSN.

As for the removal of degraded fuels in the reactors, it is only expected between 2020 and 2025. The note specifies that these deadlines are to be regarded as indicative because many works of characterization of the state of the installations are still to be done.

Contaminated water volumes that accumulate

For the past five years, the work on contaminated water management - water used for core cooling and natural runoff - is the first battle. "The volumes of water accumulated in storage tanks and building basements reached in early 2016 nearly 900 cubic meters", reports IRSN, the equivalent of 300 Olympic swimming pools.

Some of this water has been treated to extract cesium and strontium. Although traces of radioactivity remain, mainly tritium, Tepco is waiting for a release of these waters. According to IRSN, Tepco would have a storage capacity of 1 million cubic meters today.

In addition to this water stored in around 3 containers, Tepco also has to manage around 000 cubic meters of highly irradiated water in the basements of damaged buildings. "In addition, they are subject to significant inflows of water (around 70 m000 / day) from the water table", adds IRSN.

http://www.usinenouvelle.com/article/ci ... rs.N383504
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by Christophe » 14/03/16, 02:29

5 years later, the appalling record of Fukushima ...

VIDEO. The number of victims of radioactive leaks caused by the tsunami that hit the Japanese nuclear power plant continues to grow.

http://www.dailymotion.com/video/x3x4irw_l-accident-nucleaire-de-fukushima-explique-en-1-minute_news

Is the Fukushima disaster, which started 11 March 2011, really over? Five years later, the radioactive leaks caused by the tsunami that struck the Japanese nuclear plant, the medical authorities note with horror that the human toll of this accident continues to grow. According to calculations by Tokyo Electric Power Company (TEPCO), which operated the affected plant, emissions of toxic products would have been ten times lower than those of Chernobyl, the 26 April 1986. Nevertheless, nearly 32 millions of Japanese have been exposed to iodine 131, following the runaway of the three reactors of the nuclear power plant.


http://www.lepoint.fr/monde/fukushima-5 ... 557_24.php
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by Christophe » 14/03/16, 02:39

Looking for this topic here: search.php

I've had a few "funny" ads:

Pub_fukushima.png


And to say that some complain that the ad is not targeted enough !! No but !!
So you have the choice: 1 flight and 2 hotels in Fukushima to study the reconstruction of a nuclear power plant !! : Cheesy: : Cheesy:

Well no laughing is still some marketing managers who deserve slap ... of course it's robotic but still ... a little blacklist destination not great would be welcome ... it works with Moruroa and Chernobyl you believe?
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by Obamot » 14/03/16, 15:55

But in Chernobyl: "nature has taken back its rights, no?"it's safe Christophe! : Twisted: Must watch the docus d'Arte : Shock:
Yes but ALL look ...
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by moinsdewatt » 12/04/16, 22:02

Like wild life in Chernobyl, the population of wild pigs, or wild boar, has increased very rapidly in the Fukushima area. A situation that worries local authorities


http://www.sciencesetavenir.fr/animaux/ ... shima.html
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by Obamot » 13/04/16, 11:52

Yes, it's not glorious! Here is an info closer to reality than the reportage Angelique and obsolete ARTE on Chernobyl ...!
That says at least things as they are in the field.

The population explosion (in enormous suffering) is very well explained by the shortening of life expectancy (high mortality due to radiation, animals know it) then offset by the increase in the number of young and litters. necessarily "unhealthy" in females. (We see this even in the human species where there is a population explosion in all countries with high infant mortality ... when famines reign)

Because the experiment of the radon proves it to us, since we are exposed there it is close to 5'000 years, there was no kind of adaptation of the human species to this radioactive gas, nevertheless of origin natural. He is still so deadly and we must always preserve ourselves.
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by izentrop » 13/04/16, 13:21

The author of a study on the subject, JT Smith, had indicated: "(The growth of populations of wild animals in Chernobyl) does not mean that radioactivity promotes life, but that human activities (perpetuated in normal times, ed) do much more damage than one might think".
Goes in the direction of what I wanted to express. When will you stop misrepresenting my words :?:
Last edited by izentrop the 13 / 04 / 16, 13: 37, 1 edited once.
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by Obamot » 13/04/16, 13:35

Yes that I understood well the bottom of your thought Izentrop, but that should not mask that the general discourse on a pseudo "resistance" to the radiations is FALSE all the same (or unacceptable from a point of view of human balance in the given the losses that this means ... 1 million "admitted" deaths currently over 70 years, not counting the Fukushima disaster ...).

Besides, I do not know where you got this idea, but concerning the breeding birds, their population quintupled in 15 years:

Breeding Bird Index, Source_ Swiss Ornithological Park.PNG
Breeding Bird Index, Source_ Swiss Ornithological Park.PNG (4.64 Kio) Viewed 2889 times

http://www.vogelwarte.ch/fr/station/qui-sommes-nous/

The foxes live in the city, in my garden they are approaching a few meters from us, we could touch them!

FIlmé at Kew Gardens in London the 10 / 04 / 2016:

https://www.youtube.com/watch?v=9wHnodET7_I&feature=youtu.be
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by izentrop » 13/04/16, 14:06

obamot wrote:unacceptable from a human assessment point of view
I do not know what you're talking about, we're not on the right topic, Fukushima is too fresh.
In addition, breeding birds in Switzerland are not representative of biodiversity elsewhere.
They are not stopped by all the obstacles that the man inflicts on the fauna and the flora, especially in mountain where the man has less impact.
It is mostly terrestrial animals and insects that suffer the most. Incidentally, the fish too.

Concretely an example: One of the last French predator, the lynx is disappearing from the Vosges. Due to lack of strength, it does not reproduce anymore and the little that remains is crushed on the roads. I did not find a link on the internet. The Pyrenean bear has been replaced by Slovenes for a few years now and the lobby of hunters and breeders is taking over the ecology.

I do not want nuclear catastrophes, but nonetheless the zones where man is prohibited are "biodiversity havens", much more than the reserves which are not in many points.

Edit: The fox and the pigeon adapt very well to humans, especially in London where green spaces are everywhere.
And then The Swiss and London are representative of the biodiversity in the world?
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by Obamot » 13/04/16, 16:18

yes well I take very different examples and very distant places (or not) and note that nature is not doing so badly, in my corner there are fish ladders so that they can go up the rivers for the spawning. Passages are built under the roads to allow animals to pass etc. I also live in France figure you, and you should get out of your hole because nature is not so bad! In short, I don't know why but you tell "beautiful" about this forumWhat is your goal?
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