Κυριακή 17 Απριλίου 2016

The effectiveness of wastewater treatment in nuclear medicine: Performance data and radioecological considerations

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Publication date: Available online 16 April 2016
Source:Journal of Environmental Radioactivity
Author(s): F. Sudbrock, K. Schomäcker, A. Drzezga
For planned and ongoing storage of liquid radioactive waste in a designated plant for a nuclear medicine therapy ward (decontamination system/decay system), detailed knowledge of basic parameters such as the amount of radioactivity and the necessary decay time in the plant is required. The design of the plant at the Department of Nuclear Medicine of the University of Cologne, built in 2001, was based on assumptions about the individual discharge of activity from patients, which we can now retrospectively validate. The decontamination factor of the plant is at present in the order of 10−9 for 131I. The annual discharges have been continuously reduced over the period of operation and are now in the region of a few kilobecquerels. This work emphasizes the high efficacy of the decontamination plant to reduce the amount of radioactivity released from the nuclear medicine ward into the environment to almost negligible levels.



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