Radiation level jumped over 7 times much around multiple nuclide removing system 6 weeks after test operation

In order to purify the increasing contaminated water, Tepco is planning to install ALPS (Advanced Liquid Processing System).

The system is to remove 62 sorts of multiple radionuclides including Sr-90.

They started the test operation on 3/30/2013.

6 weeks have passed and the radiation level is significantly increasing around the facility already.

According to Tepco, the atmospheric dose was lower than 1μSv/h before the performance test.

On 5/14/2013, they measured 20 ~ 70 μSv/h beside the equipment.

On 5/16/2013, they measured 20 μSv/h on the North East side of the area.

Tepco states it doesn’t affect the works around the facility.

Radiation level jumped over 7 times around multiple nuclide removing system 6 weeks after test operation

 

http://www.tepco.co.jp/nu/fukushima-np/handouts/2013/images/handouts_130517_04-j.pdf

 

Related article..[Checkmate] Atmospheric dose in plant area jumps up by 6.4mSv/y for direct radiation from contaminated water [URL 2]

 

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Français :

Le niveau de la radioactivité a été multiplié par 7 autour du système de filtration multi-nucléide 6 semaines après les opérations de test

 

Pour purifier les eaux radioactives en augmentation, Tepco a prévu d’installer ALPS (Advanced Liquid Processing System).

Ce système est fait pour retirer 62 types de radionucléides en même temps, dont le strontium 90.
Ils avaient commencé les opérations de test le 30 mars 2013.
6 semaines sont passées et la radioactivité augmente déjà de façon significative autour du système.
Selon Tepco, la dose aérienne était en dessous de 1 μSv/h avant les tests.
Le 14 mai 2013, ils relèvent entre 20 et 70 μSv/h à côté de l’appareillage.
Le 16 mai 2013, ils relèvent 20 μSv/h au Nord-Est de la zone.
Tepco affirme que ça n’impacte pas le travail autour de l’appareillage.

Radiation level jumped over 7 times around multiple nuclide removing system 6 weeks after test operation

http://www.tepco.co.jp/nu/fukushima-np/handouts/2013/images/handouts_130517_04-j.pdf

Article lié : [Checkmate] La dose aérienne dans la centrale monte de 6,4 mSv/an à cause des eaux extrêmement radioactives

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About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.

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