Abstract: Cesium-137 (137Cs) and europium-152+154 (152+154Eu) are the main species found in radioactive liquid wastes. Consequently, the study of their removal from wastewater was essential. For this purpose, hydroxyapatite (HA) nanoparticles were produced from calcium-rich bio-wastes (mussel shells) by a wet chemical precipitation technique. The physicochemical properties, morphology and thermal behaviour of the HA nanoparticles were examined by XRD, FT-IR, SEM/EDX, TGA/DTA. In addition, the surface area was estimated using a nitrogen adsorption desorption isotherm. Afterwards, the adsorptive removal capacity of HA nanoparticles for 137Cs and 152+154Eu within the pH range of 2−12 from aqueous solutions was determined, and the sorbent dose and contact time were also considered. The current work utilized cost effective HA nanoparticles as a planned barrier for the removal of nuclear ions originating from radio reactor liquid wastes.
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El-Bassyouni, G., Kenawy, S., Hassan, R. et al. Removal of 137Cs and 152+154Eu Using Hydroxyapatite Prepared from Mussel Shells. Interceram. - Int. Ceram. Rev. 68, 34–41 (2019). https://doi.org/10.1007/s42411-019-0049-0
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DOI: https://doi.org/10.1007/s42411-019-0049-0