US News In Japan, the contaminated water of the Fukushima nuclear power plant will be rejected in the ocean

01:25  14 april  2021
01:25  14 april  2021 Source:   ouest-france.fr

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La centrale nucléaire japonaise de Fukushima-Daiichi, exploitée par Tepco, le 10 mars. © Kazuhiro Nogi, AFP The Japanese nuclear power plant from Fukushima-Daiichi, operated by TEPCO, March 10.

Japan has made its choice and promises sea controls. But many fishermen and riparian countries no longer confidence in the Japanese nuclear authorities, since the March 2011 disaster.

after months of debates and studies, the government Japanese has decided on Tuesday, April 13th. In two years, the TEPCO nuclear group will be able to reject in the Pacific Ocean the water stored in the Daiichi power plant from the Fukushima disaster in March 2011.

The water will be treated beforehand by law, which is strict on Radioactive discharges. For this, the TEPCO has been developing a filtering process, called Alps (Advanced Liquid Processing System). The first trials allowed the dangerous strontium 90. Since then, the technique eliminates all radionuclides except tritium, which will be diluted.

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Release the 1.25 million tons of accumulated water

The Japanese office of nuclear regulation (NRA) speaks of "tiny traces", well below the threshold recommended for drinking water by the world organization. Health (WHO), which is 10,000 Becquerels per liter (Bq / L). A rate deemed abnormally high. In the European Union, a level of 100 Bq / L triggers a control; In Canada, it's 20 Bq / l. Tritium, there is everywhere, in a small amount, but more closely with nuclear power plants.

The NRA promises to release the 1.25 million tonnes of accumulated water since 2011, in terms of thirty years, and to multiply the controls at sea, "easier than in the air", around From the future site of rejection, to build, in front of the plant. At the Hague (Manche), for example, the treated waters are rejected via underwater behaviors, 5,000 m from the coast. "The rejection in the sea already exists elsewhere, explained that Rafael Mariano, the boss of the International Atomic Energy Agency, during a visit to Fukushima, in February 2020. There is no scandal here. The lies have left traces

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this voice reassured neither the riparian countries of Japan, like China and South Korea, who have officially protested or fishermen from Fukushima.

"They had promised us that they would not reject water in the sea without our downstream,"

is desolated Kanji Tachiya, boss of a local fishing cooperative in Fukushima, on the NHK public channel, at the time of the announcement.

The TEPCO is struggling to regain confidence. Many contaminated water escaped into the sea and underground tablecloths, before it erects waterproof barriers around the plant and effectively pump this poison. Researchers found cesium in fish in 2011. This is no longer the case.

But the lies or non-so-called, particularly on the number of deaths and

of cancer linked to the disaster,

have left traces. And it's not over. The plant will only be dismantled in thirty to forty years. About 140 m3 of water per day are still needed to cool the still fusion fuel. The storage of thousands of barrels became impossible.

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