抄録
After the March 11, 2011 Tohoku earthquake and Fukushima I Nuclear Power Plant accident, incineration was initially adopted as an effective technique for the treatment of post-disaster wastes. Accordingly, considerable amounts of radioactively contaminated residues were immediately generated through incineration. The level of radioactivity associated with radiocesium in the incineration ash residues (bottom ash and fly ash) became significantly high (several thousand to 100,000Bq/kg) as a result of this treatment. In order to understand the modes of occurrence of radiocesium, bottom ash products were synthesized through combusting of refuse-derived fuel (RDF) with stable Cs salts in a pilot incinerator. Microscopic and microanalytical (SEM-EDX) techniques were applied and the following Cs categories were identified: low and high concentrations in the matrix glass, low-level partitioning into some newly-formed silicate minerals, partitioning into metal-sulfide compounds, and occurring in newly-formed Cs-rich minerals. These categories that are essentially silicate-bound are the most dominant forms in large and medium size bottom ash particles. It is expected that these achievements provide solutions to the immobilization of radiocesium in the incineration ash products contaminated by Fukushima nuclear accident.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 76-84 |
| ページ数 | 9 |
| ジャーナル | Journal of Environmental Radioactivity |
| 巻 | 136 |
| DOI | |
| 出版物ステータス | 出版済み - 1 1 2014 |
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All Science Journal Classification (ASJC) codes
- Environmental Chemistry
- Waste Management and Disposal
- Pollution
- Health, Toxicology and Mutagenesis
これを引用
Cesium distribution and phases in proxy experiments on the incineration of radioactively contaminated waste from the Fukushima area. / Saffarzadeh, Amirhomayoun; Shimaoka, Takayuki; Kakuta, Yoshitada; Kawano, Takashi.
：: Journal of Environmental Radioactivity, 巻 136, 01.01.2014, p. 76-84.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Cesium distribution and phases in proxy experiments on the incineration of radioactively contaminated waste from the Fukushima area
AU - Saffarzadeh, Amirhomayoun
AU - Shimaoka, Takayuki
AU - Kakuta, Yoshitada
AU - Kawano, Takashi
PY - 2014/1/1
Y1 - 2014/1/1
N2 - After the March 11, 2011 Tohoku earthquake and Fukushima I Nuclear Power Plant accident, incineration was initially adopted as an effective technique for the treatment of post-disaster wastes. Accordingly, considerable amounts of radioactively contaminated residues were immediately generated through incineration. The level of radioactivity associated with radiocesium in the incineration ash residues (bottom ash and fly ash) became significantly high (several thousand to 100,000Bq/kg) as a result of this treatment. In order to understand the modes of occurrence of radiocesium, bottom ash products were synthesized through combusting of refuse-derived fuel (RDF) with stable Cs salts in a pilot incinerator. Microscopic and microanalytical (SEM-EDX) techniques were applied and the following Cs categories were identified: low and high concentrations in the matrix glass, low-level partitioning into some newly-formed silicate minerals, partitioning into metal-sulfide compounds, and occurring in newly-formed Cs-rich minerals. These categories that are essentially silicate-bound are the most dominant forms in large and medium size bottom ash particles. It is expected that these achievements provide solutions to the immobilization of radiocesium in the incineration ash products contaminated by Fukushima nuclear accident.
AB - After the March 11, 2011 Tohoku earthquake and Fukushima I Nuclear Power Plant accident, incineration was initially adopted as an effective technique for the treatment of post-disaster wastes. Accordingly, considerable amounts of radioactively contaminated residues were immediately generated through incineration. The level of radioactivity associated with radiocesium in the incineration ash residues (bottom ash and fly ash) became significantly high (several thousand to 100,000Bq/kg) as a result of this treatment. In order to understand the modes of occurrence of radiocesium, bottom ash products were synthesized through combusting of refuse-derived fuel (RDF) with stable Cs salts in a pilot incinerator. Microscopic and microanalytical (SEM-EDX) techniques were applied and the following Cs categories were identified: low and high concentrations in the matrix glass, low-level partitioning into some newly-formed silicate minerals, partitioning into metal-sulfide compounds, and occurring in newly-formed Cs-rich minerals. These categories that are essentially silicate-bound are the most dominant forms in large and medium size bottom ash particles. It is expected that these achievements provide solutions to the immobilization of radiocesium in the incineration ash products contaminated by Fukushima nuclear accident.
UR - http://www.scopus.com/inward/record.url?scp=84901975394&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84901975394&partnerID=8YFLogxK
U2 - 10.1016/j.jenvrad.2014.05.009
DO - 10.1016/j.jenvrad.2014.05.009
M3 - Article
C2 - 24911259
AN - SCOPUS:84901975394
VL - 136
SP - 76
EP - 84
JO - Journal of Environmental Radioactivity
JF - Journal of Environmental Radioactivity
SN - 0265-931X
ER -