Study of Cobalt Sorption on Polyethylene

• Published in: Journal of colloid and interface science Vol. 168; no. 2; pp. 451 - 457
• Main Authors: Kolics, Artúr, Varga, Kálmán
• Format: Journal Article
• Language: English
• Published: San Diego, CA Elsevier Inc 01.12.1994; Elsevier
• Subjects: 210200 > Power Reactors, Nonbreeding, Light-Water Moderated, Nonboiling Water Cooled; ADSORPTION; ADSORPTION ISOTHERMS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BORIC ACID; BORON COMPOUNDS; CHEMISTRY; COBALT; COBALT 60; COBALT ISOTOPES; COOLING SYSTEMS; ELEMENTS; ENERGY SYSTEMS; ENRICHED URANIUM REACTORS; Exact sciences and technology; General and physical chemistry; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTHERMS; ISOTOPE APPLICATIONS; ISOTOPES; MEASURING METHODS; METALS; MINUTES LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; ORGANIC COMPOUNDS; ORGANIC POLYMERS; OXYGEN COMPOUNDS; PH VALUE; POLYETHYLENES; POLYMERS; POLYOLEFINS; POWER REACTORS; PRIMARY COOLANT CIRCUITS; PWR TYPE REACTORS; RADIOISOTOPES; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS; REACTORS; Solid-liquid interface; SORPTION; SORPTIVE PROPERTIES; SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; Surface physical chemistry; SURFACE PROPERTIES; THERMAL REACTORS; TRACER TECHNIQUES; TRANSITION ELEMENTS; WATER CHEMISTRY; WATER COOLED REACTORS; WATER MODERATED REACTORS; YEARS LIVING RADIOISOT 400105 > Separation Procedures; Inorganic adsorbate; Alkali metal Compounds; Sodium Ions; Polyethylene; Liquid solid interface; Stability; Liquid solid adsorption; Liquid solid desorption; Cobalt Ions; Cobalt Isotopes; Particle suspension; Experimental study; Accumulation; Organic adsorbent; Boric acid; Transition metal Ions; Ion mobility; Ionic strength; Concentration effect; Surface properties; pH; Kinetics; Labelled compound; Colloid particle
• ISSN: 0021-9797; 1095-7103
• DOI: 10.1006/jcis.1994.1441

The results gained from the study of cobalt accumulation on polyethylene are presented in this paper. To clarify the role of colloid formation, the presence of borate species, and the surface properties of polyethylene in accumulation process, several independent techniques such as the in situ radiotracer method, centrifugation, FTIR, and Raman spectroscopy are used. From the results, it can be stated that the kinetics of cobalt accumulation is dependent on the pH and composition of the solution phase. The accumulation of cobalt proceeds in both colloid and ionic forms; however, the amount of sorbed ionic cobalt species increases with pH due to their accumulation on colloids. The lower cobalt accumulation in borate-containing solution is attributed to the lower amount of colloid formation.