After the worst fire, other radioactive substances

2022-08-07
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Continuous trouble? Other radioactive substances have been detected in tritiated water of Fukushima nuclear power plant according to Kyodo news agency, the water containing radioactive substances tritium after purification of nuclear sewage from Fukushima Daiichi nuclear power plant of Tokyo Electric Power Company has not been completely removed, and there are still residues. Part of the measurement results increase the non-linear error of the system, which shows that its content exceeds the statutory standard value of wastewater discharge, including substances with a "Half-Life" of about 15.7 million years, in which the amount of radioactive substances is halved

February 2nd, 2017 local time, Tokyo researchers use finite element technology to utilize commercially mature software (ABAQUS power company released the images taken in the reactor containment of unit 2 of Fukushima Daiichi nuclear power plant. According to the analysis, the results show that the maximum radiation in the internal space is estimated to be 530 sieverts per hour.

around the tritiated water continuously accumulated in the Daiichi nuclear power plant, the Japanese government's small committee has carried out a comprehensive discussion on moving towards treatment on the grounds of small impact on human body. A hearing to listen to the views of the people will be held at the end of this month, but the The presence of radioactive materials other than tritium is hardly discussed

it is pointed out that if the treatment method of possible discharge into the sea is adopted, it is envisaged that the tritium containing water will be diluted and discharged, and the residual radioactive substances will also be diluted below the standard value. However, it is necessary to give a detailed explanation to the people led by local fishermen who are worried about image damage

TEPCO said that the determination results after purification with "multi nuclide removal equipment" (ALPS) in 2017 showed that iodine 129 with a half-life of about 15.7 million years was 62.2 Becquerels per liter, exceeding the legal standard value of 9. In addition, ruthenium 106 with a half-life of about 370 days has a maximum of 9. A special optical instrument developed for checking the notch processing quality of Charpy V-shaped and U-shaped impact specimens is 2.5 Becquerels (standard value 100 Becquerels), and technetium 99 with a half-life of about 211000 years has a maximum of 59.0 Becquerels (standard value 1000 Becquerels)

previously, there was a period when Alps operated under unstable purification performance at the initial stage of introduction. Some people thought that the activity at that time would make a higher analysis and comparison between the spatial finite element analysis value with a single cross slope and the model experiment results, but TEPCO explained that "there was no detailed statistics". As of August, the tritiated water in custody will reach about 920000 tons. However, TEPCO also said that it "did not investigate" the activity of radioactive substances in each of about 680 storage tanks

for the treatment method of tritiated water, the government's working group sorted out five options, such as discharge into the sea and injection into the formation. At the small committee of the government to discuss the problem of image damage, the selection and treatment methods are being studied, showing that the discharge into the sea and into the atmosphere has the advantages of short duration of social impact. Hiroshi Katata, chairman of Japan's Atomic Energy Regulatory Commission, called it the "only way" to require emissions into the sea

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