Cause finding experiments and environmental analysis on the accident of the fire and explosion in TRP bituminization facility

Fujine, Sachio; Murata, Mikio; Abe, Hitoshi; Takada, Junichi; Tsukamoto, Michio; Miyata, Teijiro*; Ida, Masaaki*; Watanabe, Makio; Uchiyama, Gunzo; Asakura, Toshihide; et al.

JAERI-Research 99-056, p.278 - 0, 1999/09

JAERI-Research-99-056.pdf:22.73MB

no abstracts in English

Test on the flowing down of simulated bituminized product

; Aoyama, Makoto; ; Yamanouchi, Takamichi

PNC TN8410 97-319, 143 Pages, 1997/10

PNC-TN8410-97-319.pdf:36.19MB

The fire and explosion incident occurred at Bituminization Demonstration Facility of PNC Tokai Works on March 11, 1997. In order to ascertain the cause of incident, the investigation has been pushed forward. During investigation, we obtained essential information from operators, such as softness of bituminized product, white smoke generated from bituminized product. This condition has never been observed comparing past normal operation. Therefore, we assumed that temperature of bituminized product had increased more than expected. In order to confirm above assumption, we made experiment for obtaining the relationship between temperature and fluidity of bituminized product. Simulated bituminized product was heated up to each temperature (210, 230, 250, 270C) in a pot and poured down into an another pot. We observed the fluidity of bituminized product when it flowing down into a pot. The fluidity of bituminized product increased with high temperature. The fluidity of bituminized product at 270C looked similar to fluidity of bituminized product that had ignited itself at the incident. White smoke generated from bituminized product and amounts of white smoke increased with high temperature. The smoke was considered to be gas that generated through thermal decomposition or volatilization of bitumen.

Effects of Various Waste Contents on Properties of Borosilicate Glasses for High-Level Waste Solidification in Several Countries

; ; ; ; ; ; ; ; ; Araki, Kunio; et al.

JAERI-M 9378, 13 Pages, 1981/02

JAERI-M-9378.pdf:0.79MB

no abstracts in English

Development of the sintering solidification method for spent zeolite to long-term stabilization, 4; Phase relation in heat treatment of Cs saturated adsorption zeolite

Usui, Akane; Tanaka, Kosuke; Onishi, Takashi

no journal, , 

Development of the sintering solidification method for spent zeolite has been conducted. In order to understand the basic knowledge for the formation of pollucite, phase relation in heat treatment of Cs saturated adsorption zeolite was evaluated.

Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station, 9; Synthesis of simulated carbonate slurry

Nakashio, Nobuyuki*; Kawasoe, Takahiro*; Aikawa, Kohei*; Kikuchi, Michio*; Yamamoto, Takeshi*; Kaneda, Yoshihisa*; Haga, Kazuko*; Osugi, Takeshi; Sone, Tomoyuki; Kuroki, Ryoichiro

no journal, , 

Simulated carbonate slurry was synthesized to obtain basic data for the low temperature processing of the waste generated from contaminated water treatment at Fukushima Daiichi Nuclear Power Station. An overview of the study and some of the results obtained are reported here.

Estimation of maximum filling ratio of lead-containing products in cementation

Sato, Junya; Takahashi, Yuta; Sunahara, Jun*; Saito, Toshimitsu*; Osugi, Takeshi

no journal, , 

no abstracts in English

Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station, 39; Evaluation of test methods for fluidity, compressive strength, and leaching properties in low-temperature solidification possibility screening

Osawa, Norihisa*; Kaneda, Yoshihisa*; Sakamoto, Ryo*; Taniguchi, Takumi; Kuroki, Ryoichiro; Osugi, Takeshi

no journal, , 

no abstracts in English