Remediation of Sites with Mixed Contamination of Radioactive and Other Hazardous Substances

Remediation of Sites with Mixed Contamination of Radioactive and Other Hazardous Substances

Author: International Atomic Energy Agency

Publisher: IAEA

Published: 2006

Total Pages: 260

ISBN-13:

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The IAEA attaches great importance to the dissemination of information that can assist Member States with the development, implementation, maintenance and continuous improvement of systems, programs, and activities that support the management of the legacies of past practices and accidents. In response to this, the IAEA has initiated a comprehensive program of work covering all aspects of environmental remediation. Mixed radioactive and hazardous substances contamination poses a particular challenge because of the combination of types of hazards and potential exposures. While radionuclides and toxic (heavy) metals pose similar and mostly compatible challenges, organic contaminants often require different approaches that may not be compatible with the former. Additional complexity is introduced into the problem by a different and sometimes conflicting regulatory framework for radiological and non-radiological contamination, including the prescribed waste management routes. In consideration of the added complexities of remediating mixed contamination, the IAEA has determined that this subject sufficiently warrants the development of a specialized report for assisting Member States.


Tank Waste Retrieval, Processing, and On-site Disposal at Three Department of Energy Sites

Tank Waste Retrieval, Processing, and On-site Disposal at Three Department of Energy Sites

Author: National Research Council

Publisher: National Academies Press

Published: 2006-10-12

Total Pages: 214

ISBN-13: 0309101700

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DOE Tank Waste: How clean is clean enough? The U.S. Congress asked the National Academies to evaluate the Department of Energy's (DOE's) plans for cleaning up defense-related radioactive wastes stored in underground tanks at three sites: the Hanford Site in Washington State, the Savannah River Site in South Carolina, and the Idaho National Laboratory. DOE plans to remove the waste from the tanks, separate out high-level radioactive waste to be shipped to an off-site geological repository, and dispose of the remaining lower-activity waste onsite. The report concludes that DOE's overall plan is workable, but some important challenges must be overcomeâ€"including the removal of residual waste from some tanks, especially at Hanford and Savannah River. The report recommends that DOE pursue a more risk-informed, consistent, participatory, and transparent for making decisions about how much waste to retrieve from tanks and how much to dispose of onsite. The report offers several other detailed recommendations to improve the technical soundness of DOE's tank cleanup plans.