“Corona” and “Olympic” from Fukushima, 10 Years after the Nuclear Accident

2021 ◽  
Vol 129 ◽  
pp. 33-47
Author(s):  
Matsutani Motokazu
Keyword(s):  
Nuclear Accident

New Technologies for Decontamination of Radioactive Substances Scattered by Nuclear Accident / Nowe Technologie Dekontaminacji Radioaktywnych Substancji Rozproszonych Przez Awarie Nuklearna

2013 ◽  
Vol 58 (1) ◽  
pp. 283-290 ◽  
Author(s):  
Y. Nishizaki ◽  
H. Miyamae ◽  
S. Ichikawa ◽  
K. Izumiya ◽  
T. Takano ◽  
...  
Keyword(s):  
Radioactive Waste ◽  
New Technologies ◽  
Ferric Hydroxide ◽  
Nuclear Accident ◽  
Radioactive Cesium ◽  
Cesium Ions ◽  
Naoh Solution ◽  
High Concentrations ◽  
Water Rinsing

Our effort for decontamination of radioactive cesium scattered widely by nuclear accident in March 2011 in Fukushima, Japan has been described. Radioactive cesium scattered widely in Japan has been accumulating in arc or plasma molten-solidified ash in waste incinerating facilities up to 90,000 Bq/kg of the radioactive waste. Water rinsing of the ash resulted in dissolution of cesium ions together with high concentrations of potassium and sodium ions. Although potassium inhibits the adsorption of cesium on zeolite, we succeeded to precipitate cesium by in-situ formation of ferric ferrocyanide and iron rust in the radioactive filtrate after rinsing of the radioactive ash with water. Because the regulation of no preservation of any kind of cyanide substances, cesium was separated from the precipitate consisting of cesium-captured ferric ferrocyanide and ferric hydroxide in diluted NaOH solution and subsequent filtration gave rise to the potassium-free radioactive filtrate. Cesium was captured by zeolite from the potassium-free radioactive filtrate. The amount of this final radioactive waste of zeolite was significantly lower than that of the arc-molten-solidified ash.

scholarly journals Belief in group interdependence: Facilitating evacuee–host interactions after the Fukushima nuclear accident

2021 ◽  
Author(s):  
Tomoyuki Kobayashi ◽  
Kazuki Yoshida ◽  
Yoshitake Takebayashi ◽  
Aya Goto ◽  
Atsushi Kumagai ◽  
...  
Keyword(s):  
Nuclear Accident ◽  
Fukushima Nuclear Accident ◽  
Host Interactions

Key technologies of nuclear accident consequence assessment system based on OpenGIS

2021 ◽  
Vol 14 (13) ◽  
Author(s):  
Xuan Wang ◽  
Xiang Pu ◽  
Bo Wang ◽  
Qiong Zhang ◽  
Jianing Wang
Keyword(s):  
Assessment System ◽  
Nuclear Accident ◽  
Consequence Assessment ◽  
Key Technologies ◽  
Accident Consequence

scholarly journals Deposition and Dispersion of Radio-Cesium Released Due to the Fukushima Nuclear Accident: Sensitivity to Meteorological Models and Physical Modules

2019 ◽  
Vol 124 (3) ◽  
pp. 1823-1845 ◽  
Author(s):  
Mizuo Kajino ◽  
Tsuyoshi Thomas Sekiyama ◽  
Yasuhito Igarashi ◽  
Genki Katata ◽  
Morihiro Sawada ◽  
...  
Keyword(s):  
Nuclear Accident ◽  
Fukushima Nuclear Accident ◽  
Meteorological Models
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