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JAEA Reports

Melting treatment of incineration ashes of radioactive waste

Ozawa, Tatsuya; Maeda, Toshikatsu; Mizuno, Tsuyoshi; Bamba, Tsunetaka; Nakayama, Shinichi; Hotta, Katsutoshi*

JAEA-Technology 2006-001, 11 Pages, 2006/02

JAEA-Technology-2006-001.pdf:2.2MB

Melting treatment is a candidate solidification technique for nonflammable low-level radioactive wastes including metals, incineration ashes, and glasses. Simulated incineration ashes of a wide range of chemical compositions were molten at 1,600$$^{circ}$$C to produce lab-scale slag form. No visible pores and separated phases were observed in the slag specimens. It was found by optical observation that some precipitates and small voids were uniformly distributed in many of the specimens. The precipitates were identified to be iron oxides by XRD analysis. The present tests indicate that melting treatment is technically capable to produce stable slag from incineration ashes, which is one of representative TRU-cotaminated radioactive wastes.

Journal Articles

Dissolution behavior of slag in the presence of cement

Maeda, Toshikatsu; Bamba, Tsunetaka*; Hotta, Katsutoshi*; Mizuno, Tsuyoshi*; Ozawa, Tatsuya

Nihon Genshiryoku Gakkai Wabun Rombunshi, 4(4), p.242 - 247, 2005/12

no abstracts in English

Oral presentation

Corrosion behavior of simulated LLW glasses in deionized water

Maeda, Toshikatsu; Yamaguchi, Tetsuji; Hotta, Katsutoshi*; Mizuno, Tsuyoshi*; Bamba, Tsunetaka

no journal, , 

Oral presentation

Dissolution of simulated high-level waste glass in silica-saturated solution at a wide range of pH

Maeda, Toshikatsu; Hotta, Katsutoshi*; Usui, Hideo

no journal, , 

no abstracts in English

Oral presentation

Characteristics of alteration layers formed on simulated HLW glass under silica-saturated solutions

Maeda, Toshikatsu; Hotta, Katsutoshi*; Usui, Hideo; Bamba, Tsunetaka

no journal, , 

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