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Specialists' Meeting on Radioactive Wastes Management

Date: November 21 - 22, 2011
Venue: Meeting Room, Kyoto University Research Reactor Institute at Kumatori, Japan

Organized by:
Kyoto University Research Reactor Institute

Co-organized by:
Global COE Program “Global Center for Education and Research on Human Security Engineering for Asian Megacities”

Number of attendants: more than 130

Report 177


The disastrous earthquake and Tsunami on March 11, 2011 has left innumerable waste contaminated with radioactive materials such as Cs-134 and Cs-137. The fundamental concept of radioactive waste management before the disaster deals with only controlled waste arisen from normal operation of atomic power plants and so on. The waste such as debris and sewage treatment sludge and municipal waste incineration ash contaminated with radioactive materials emitted from the atomic reactors destroyed by the accident was not considered and no regulation has been prepared for this waste. The construction of a new paradigm to deal with these wastes is necessary and important.


In the first part of this symposium, treatment of waste water and debris highly contaminated with radioactive nuclides emitted from destroyed atomic reactors was discussed. Although these activities are conducted under very high radiation circumstance in the atomic power station site, these waste treatments has been presently successful, but must have been continued for a while. In the second part, governmental officers present the regulation and management of waste contaminated by radioactive materials unintendedly released in the environment. And overall discussion to build up a new paradigm for the treatment and decontamination of radionuclides was conducted.