Investigations of the Sorption of Radionuclides by Raised Bog Peat

Authors:
Abramenkovs A., Alksnis J., Klavins M., Popelis A. and Rudzitis J.

Book:
Proceedings of the 14th International Peat Congress

Venue:
Stockholm

Keywords:
humic-substances, peat, radionuclides, sorption

Documentfile:
Abramenkovs et al 2012: Investigations of the Sorption of Radionuclides by Raised Bog Peat

Summary:

Theme IV. Chemical, physical and biological characteristics of peat

SUMMARY

This study examines the sorption of radionuclides ¹³⁷Cs, ⁵⁵Fe, ⁶³Ni and ¹⁴C by the raised bog peat. The sorption experiments were performed using a batch mode and a flux mode. The initial radioactivity of the peat samples was studied before the experiments. The influence of pH and fraction’s size on the sorption of radionuclides has been studied. It was found, that pH of the liquid phase significantly influences on the sorption process of radionuclides. Experimental data confirms that peat can significantly up to 10 times reduce the concentration of radionuclides in liquid phase after 15 hours treatment.