Efficiency investigation on electro-kinetic decontamination for concrete waste originated from nuclear power plants

Abstract

The purpose of this study is to investigate the relationship between efficiency of electro-kinetic extraction by reviewing previous papers, and to enhance the decontamination efficiency from revealed conclusion. For research, cobalt and cesium was selected as target nuclides for the research because of their latent dager and majority in composition of radioactive waste. Preferentially, several variables that can affect to experiment are decided and selected by considering theoretical background of electro-kinetic mechanism to investigate the relationship between decontamination efficiency and the parameters. Since them, the procedure that compare the result showing higher decontamination efficiency with the others showing less decontamination efficiency for each experimental variable were conducted. As a result, it is concluded that pH is the dominant factor which affect to decontamination ratio, and it is discussed with concrete hydration flow. The more detailed analysis was conducted by drawing graph that present relationship between variable and final decontamination ratio or earlier decontamination rate