Examination of competitive lanthanide sorption onto smectites and its significance in the management of radioactive waste

• Published in: Journal of hazardous materials Vol. 186; no. 2-3; pp. 1930 - 1941
• Main Authors: Galunin, Evgeny, Alba, María D., Santos, Maria J., Abrão, Taufik, Vidal, Miquel
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 28.02.2011; Elsevier
• Subjects: Adsorption; Algorithms; Aluminum Silicates; Applied sciences; calcium; cement; Cements; Chemical engineering; clay; Concentració dels ions d'hidrogen; Deionization; Desorption; Engineered barriers; Exact sciences and technology; Fittings; Hydrogen-Ion Concentration; ions; Isotherms; Lanthanides; Lanthanoid Series Elements - analysis; Lanthanoid Series Elements - chemistry; Lanthanum - analysis; leachates; Lutetium - analysis; Microscopy, Electron, Scanning; Pollution; Radioactive Waste; Radioactive wastes; radionuclides; rare earth elements; Residus radioactius; Silicates - chemistry; Silici; Silicon; Smectites; Smectitic clays; Sorption; sorption isotherms; Wastes; Water - chemistry; X-Ray Diffraction; Sorption; Radioactive waste; Engineered barriers; Lanthanides; Smectitic clays; Correlation; Lanthanide; Radioactive pollution; Adsorption isotherm; Hazardous waste; Desorption; Radioisotope; Retention; Langmuir isotherm; Batchwise; Correlation analysis; Smectite; Cement; Affinity; Leachate

The competitive effect of La and Lu (analogues of radionuclides appearing in radioactive waste) in the sorption in four smectites was examined. Sorption and desorption distribution coefficients (Kd; Kd,des), and desorption rates (Rdes) were determined from batch tests in two media: deionized water a...