Aluminium oxide grafted kaolinite for efficient uranium removal from aqueous solution

Due to extensive diversity of nuclear applications, efficient adsorbents are highly required for radioactive liquid waste treatment. In this investigation, costless and simple approach for removing uranium from liquid waste by aluminum oxide grafted kaolinite (AOGK) was stated. The influences of contact time, solution pH, initial uranium concentration, adsorption temperature, adsorbent amount (dose) on the adsorption of uranium (VI) ions from radioactive liquid waste were investigated. The theoretical capacity of AOGK adsorbent is about 95 mg/g AOGK. The optimum adsorption conditions were recommended. About 95% of the loaded Uranium (VI) on AOGK adsorbent has been eluted by ascorbic acid as an efficient eluent.