Decomposition of radioactive organic wastes with supercritical water medium containing ruO2

Wataru Sugiyama, Ki Chul Park, Tomoo Yamamura, Hidetsugu Okada, Yuji Sugita, Hiroshi Tomiyasu

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


This work studied the decomposition of radioactive organic wastes such as fire resistant sheeting and rubber gloves, and other widely used organic materials in nuclear power plants or other nuclear facilities. It was found that these organic materials could be decomposed into gaseous products in supercritical water mixed with RuO2, at 450°C and 43 MPa, without adding any oxidizing reagent. When this method was applied to the decomposition of rubber gloves and anion exchange resin, only a small amount of oil-like product was obtained.

Original languageEnglish
Pages (from-to)256-258
Number of pages3
Journaljournal of nuclear science and technology
Issue number2
Publication statusPublished - 2005 Feb


  • Decomposition of nonflammable organic waste
  • Low-level-radioactive waste
  • Ruthenium(IV) oxide
  • Supercritical water

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering


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