[en] describe an original process for the treatment of low level activity radioactive liquid wastes. It deals with the electrochemical preparation of three polyacrylate polymers: polyacrylamide (PAam), polyacrylamidoglycolic acid (PAAG), polyacrylamidomethylpropanesulfonic acid (PAMPS) which are capable of complexing uranyl ions. We have demonstrated the complexation of uranyl by FT-IR and UV-Visible spectroscopy. All these complexes are soluble in water and we insolubilize in turn the complexes by crosslinking or by neutralization of positively charged complexes by the addition of polyanions to the medium. We have then done dynamic and static leaching tests on these insoluble complexes.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry Materials science & engineering
Author, co-author :
Leroy, D.; Université de Liège - ULiège > Coordination Chemistry and Radiochemistry
Martinot, Lucien ; Université de Liège - ULiège > Coordination Chemistry and Radiochemistry
Jérôme, Christine ; Université de Liège - ULiège > Center for Education and Research on Macromolecules (CERM)
Jérôme, Robert ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Complexation of uranyl ion by three polyacrylamide type polymers: electrochemical preparation and leaching tests investigations
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE] IISN - Institut interuniversitaire des sciences nucléaires [BE]
