Fossil fuels: oil, gas, coal, nuclear (fission and fusion)Fukushima Daiichi: the situation (one year) after (ASN and IRSN)

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

Unread Messageby izentrop » 13/04/16, 20:54

Obamot wrote: you should go out of your hole becaufe nature is not so bad!

Feel good with fish ladders, while elsewhere:
Biodiversity-the-disappearance-of-cash-s-accelerated
Disappearance-of-insects-a-disaster-silent
fish-way-to-total disappearance

Apart from that, everything's fine :|
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)

Unread Messageby Obamot » 13/04/16, 21:54

So after all that you wrote, according to you it would be better to Chernobyl contaminated area ... : Mrgreen: : Cheesy: : Mrgreen:

You know you well ch'taime! : Lol:
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)

Unread Messageby moinsdewatt » 15/04/16, 19:53

News from the '' ice wall '' in Fukushima:

The Nippon nuclear regulatory agency to gave the green light for the use of the ice wall.
The cooling of the startup will begin soon. 3 cooling that will take months for the first phase.

Fukushima's underground ice wall

March 30th 2016

Japan's Nuclear Regulation Authority (NRA) on Wednesday approved the use of an underground "wall of ice" at the destroyed Fukushima nuclear plant to help contenir spills of contaminated water into the Pacific Ocean.

After Several delays, the plant's operator, Tokyo Electric Power Company (Tepco), on Thursday will be reliable to begin the process of freezing the ground around the buildings That Housed the oven That Were MOST reactors affected by the earthquake and tsunami of March 11, 2011.

"This operation is a challenge, and it is Necessary to carry it out with extreme care, and with all Necessary details (for follow-up)," Said the regulator's Chairman Shunichi Tanaka at the end of a meeting Held on Wednesday, NHK Reported .

NRA HAD wanted to Carefully analyzing this project, Originally raised in 2013, to certify That Tepco, qui: has a long history of neglect, can Properly manage the system without Causing additional leaks of radioactive water in the facilities.

Meanwhile, more than 1,500 pipes-have-been inserted into the earth at a depth of 30 meters (98 feet) around the furnace units, for the procedure.

Through pipes thesis has saline solution at temperature of minus 30 degrees Celsius will be injected to freeze the ground in touch with the frozen pipes and create a barrier to prevent prevention groundwater from seeping into the buildings and mix with polluted refrigerant.

The goal is to Reduce the amount of radioactive water That accumulates in the basements of the buildings and prevent prevention ict leakage into the Pacific Ocean.

Currently entre 150 and 200 tons of water daily Penetrate into the structures and this system is expected to amount to Reduce the only 50 tons at full capacity.

The Process of Creating the wall will be completed in three phases, the first of qui will take three months, and Its effects will be felt Within days Approximately 40.

http://www.business-standard.com/articl ... 628_1.html

4 April 1 and first refrigeration section has been activated:

One portion of the ice wall Was activated on Thursday, with additional parts set to be activated over the next FEW months. TEPCO says this is a precautionary measure to make sour They Do not run into snags and Can Make Any Any adjustments' as needed.

http://www.digitaljournal.com/news/envi ... cle/461995

It costed at $ 312 million!
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)

Unread Messageby Remundo » 24/04/16, 10:14

where are the advocates of nuclear laudatory to take a look at this wonderfully cooling to all sense? : roll:
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)

Unread Messageby moinsdewatt » 24/04/16, 14:50

Fukushima: ocean dumping of contaminated water is the preferred solution

the April 20 2016, Europe1

An appeal was launched to companies and research institutes to study options to decide the fate of 800.000 cubic meters of water decontaminated part.

Five years after the Fukushima disaster, Japan's Ministry of Industry has ruled. The dumping is the fastest and least expensive to get rid of the water loaded with tritium stored on the damaged Fukushima plant, concluded a commission from the Japanese Ministry of Industry. An appeal was launched to companies and research institutes to study various options to decide the fate of 800.000 cubic meters of water, decontaminated part, stored in tanks at the Fukushima power plant.

The evaporation or seepage into the ground envisaged. This is water from different origins which has been pumped after being in contact with the highly radioactive facilities. She was purged of some radionuclides 62 but still loaded with tritium, a radioactive substance that can not be filtered with current techniques. In addition to disposal at sea, various potential solutions (evaporation, deep infiltration into the soil, solidification with cement and / or other substances) have been proposed and evaluated in terms of the financial cost and the time required for any sluicing.

An estimated cost of 3,4 trillion yen. It shows that take seven years and four months to get rid of this water into the ocean after dilution for an estimated cost 3,4 billion yen ($ 27 million), while other techniques would cost ten times 100 at times for up to eight years and two months to thirteen years, according to documents the commission. This will now fix the results of its reviews in a report to be studied by the ministry and the company TEPCO, Fukushima manager to make a decision this fall.

For years, various industry experts, the Japanese Nuclear Regulatory Authority or the International Atomic Energy Agency (IAEA) recommend the rejection of the sea water, arguing that it is not possible to the long-term storage, it is done elsewhere in the world for service stations, and affirming that tritium does not present a danger when it is diluted.

http://www.europe1.fr/international/fuk ... ee-2725036
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)

Unread Messageby Remundo » 24/04/16, 19:23

they could also store it for a few half-life of tritium ... which is 12-13 years if my memory serves.

After 40 years, activity will be divided by approximately 10,

Tritium is a dirt rather, it makes you T2O or HTO water that radiates beta - (electrons) within living beings having the misfortune of having absorbed.

if they want to swing it, they go in high sea ... the dilution may be the least bad option, but not a "solution".
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)

Unread Messageby moinsdewatt » 05/07/16, 13:08

Five years after Fukushima, the Pacific displays an almost normal radioactivity

Les Echos | The 04 / 07

According to the Scientific Committee on Oceanic Research, the sea and the nearby port of the Fukushima plant are nevertheless still highly contaminated.

Remember: the March 11 2011, 9 an earthquake and a giant tsunami devastated the Tohoku region (Northeast), leaving almost 19.000 dead or missing. The phenomenon caused a serious nuclear accident at the Fukushima plant, the source of one of the largest radioactive pollution of the oceans never occurred. In the days that followed the tragedy, sea water for cooling the reactors was carted into the ocean of nuclear materials, then dispersed by currents. Radioactive substances were scattered to the US coast.


Five years later, a report from the Scientific Committee on Oceanic Research, which brings together international experts, found that across the Pacific Ocean to levels of radioactivity are now quickly return to normal. The crossing of data from twenty studies on radioactivity generated by the Japanese central, highlighted that the levels of radioactivity in the Pacific coming back down quickly, after tens of millions of times the just normal after the disaster. "For example, in 2011, almost half of samples from fish in coastal waters off Fukushima contained dangerous levels of radioactive materials," said Pere Masque, co-author of the study published by the annual review of marine science. "in 2015, that number had dropped to less than one percent above the limit." For this study, the researchers examined levels of radioactive cesium readings off the coast of Japan and across the Pacific to North America. Cesium, which is a byproduct of nuclear energy, is highly soluble in water, making it ideal for measuring the release of radioactive material into the ocean.

The still heavily contaminated seabed

But the study also found that the seabed and the nearby port of the Fukushima plant are still heavily contaminated as a result of the worst nuclear accident since Chernobyl in the world 1986. "The monitoring of levels of radioactivity and marine life in this area must continue," added Mr. Mask, professor of environmental radiochemistry at Edith Cowan University in Western Australia.

http://www.lesechos.fr/industrie-servic ... 011957.php
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)

Unread Messageby Obamot » 05/07/16, 15:22

moinsdewatt wrote:
Les Echos wrote:Five years later, a report of "Scientific Committee on Oceanic Research ", Which brings together international experts, found that across the Pacific Ocean to levels of radioactivity are now quickly return to normal.

Maybe just define what their ' normality "And he must also keep the word" scientific "!!? !!

moinsdewatt wrote:
Les Echos wrote:« As an example, in 2011, nearly half of the fish samples in coastal waters off Fukushima contained hazardous levels of radioactive material "Said Pere Masque, co-author of the study published in the Annual Review of Marine Science." Radioactive cesium levels found off the coast [...] in 2015, the number had dropped to less than one percent above the limit ».

It nakashi go eat during his years 10 fish caught off Fukushima : Twisted:
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)

Unread Messageby Christophe » 06/07/16, 17:21

moinsdewatt wrote:
Five years after Fukushima, the Pacific displays near-normal radioactivity

Les Echos | The 04 / 07 (

(...)

The seabed yet highly contaminated


Strong these journalists :)

So it's almost normal or is heavily contaminated? Thin should know what!
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)

Unread Messageby Ahmed » 06/07/16, 19:02

It's almost normal that contaminated! You really have to explain everything! :D
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