Abstract
The study deals with the uranium removal from a raffinate solution (nitric acid waste solution from the production of uranium yellowcake) using an extractant-impregnated material. A polyamide sheet (Nylon 6,6) was impregnated with trioctylphosphine oxide and tested for uranium removal. The factors affecting the impregnation process, namely, extractant concentration, impregnation time, volume/mass ratio, impregnation temperature, and diluent type were studied. The effect of the initial uranium concentration, adsorption temperature, contact time, and pH on the uranium adsorption on the prepared sheet was also studied. The uranium adsorption behavior was described using adsorption isotherms.
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