Processing NPP Bottoms by Ferrocyanide Precipitation.

Slastennikov, S. A. E. ; Sinyakin, Y. T.

Technical Information Center Oak Ridge Tennessee

关键词: Radioactive waste processing;    Ferrocyanides;    Filtration;    Precipitation;    Cleaning;   

RP-ID  :  DE2004828291

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The purpose of work is a laboratory test of a technological scheme for cleaning bottoms from radionuclides by use of ozonization, ferrocyanide precipitation, filtration and selective sorption. At carrying out the ferrocyanide precipitation after ozonization, the specific activity of bottoms by Cs(sup 137) is reduced in 100-500 times. It has been demonstrated that the efficiency of ferrocyanide precipitation depends on the quality of consequent filtration. Pore sizes of a filter has been determined to be less than 0.2 (micro)m for complete separation of ferrocyanide residue. The comparison of two technological schemes for cleaning bottoms from radionuclides, characterized by presence of the ferrocyanide precipitation stage has been performed. Application of the proposed schemes allows reducing volumes of radioactive waste in many times.