Modification of the Radioactive Wastewater Treatment Technology in the Hungarian Nuclear Power Plant Paks
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Abstract
This paper describes the results of a joint research program of the Budapest University of Technology and Economics and the Paks Nuclear Power Plant (NPP) to modify the radioactive wastewater treatment technology for the evaporator bottom tanks in the NPP. The main characteristics of the modified technology were that we first removed all the long life radioactive isotopes with an underwater plasma torch reactor (UPTR), micro and ultrafiltration and a cesium selective ion exchanger stable at pH~12–13. After the separation of precipitated borate crystals, the remaining liquid was released as chemical waste.