Sorption of Sr-85 and Am-241 from liquid radioactive wastes by alginate beads

Oszczak, Agata; Fuks, Leon

doi:10.1515/nuka-2015-0155

Abstract

The paper reports the adsorption of strontium(II) and americium(III) from aqueous solutions onto calcium alginate (CaA), barium alginate (BaA) and strontium alginate (SrA) beads. Adsorption process was studied in batch experiments as a function of the initial pH of the solution and the contact time. All sorbents were examined by the termogravimetric analysis (TG). Laboratory obtained spherical beads of CaA, BaA and SrA seem to be good metal sorbents from liquid radioactive wastes. A contact time of about 4 h and neutral pH of the initial aqueous solution have been proposed to be optimum conditions for Sr-85 and Am-241 removal from the contaminated solutions using alginate sorbents. Laboratory obtained beads of CaA, BaA and SrA are characterized by the decontamination factor (DF) equal to 85% for Sr(II) and 90% for Am(III).

References

1. Nourbakhsh, M., Sag, Y., Ozer, D., Aksu, Z., Katsal, T., & Calgar, A. (1994). A comparative study of various biosorbents for removal of chromium(VI) ions from industrial wastewater. Process Biochem., 29, 1-5.10.1016/0032-9592(94)80052-9
Search in Google Scholar
2. Volesky, B. (Ed.).(1990). Biosorption of heavy metals (pp. 3-6). Boca Raton: CRC Press.
Search in Google Scholar
3. Hawieńczyk, M., Bystrzejewska-Piotrowska, G., Kowalska, J., & Asztemborska, M. (2005). Platinum bioaccumulation by mustard plants (Sinapis alba L.). Nukleonika, 50(Suppl. 1), S59-S61.
Search in Google Scholar
4. Giavasis, I., & Biliaderis, C. G. (2007). Microbial polysaccharides. In Functional food carbohydrates (pp. 174-176). New York: CRC Press.
Search in Google Scholar
5. Se-Know, K. (2015). Handbook of marine biotechnology. Dordrecht: Springer.
Search in Google Scholar
6. Khandai, M., Chakraborty, S., Sharma, A., Pattnaik, S., Patra, C. N., Dinda, S. C., & Sen, K. K. (2010). Preparation and evaluation of algino-sericin microspheres: an approach for sustained drug delivery. J. Adv. Pharm. Res., 1, 48-60.
Search in Google Scholar
7. Donati, I., & Paoletti, S. (2009). Material properties of alginates. In B. H. A. Rehm (Ed.), Alginates: Biology and applications (pp. 1-53). Berlin-Heidelberg: Springer.
Search in Google Scholar
8. Li, L., Fang, Y., Vreeker, R., Appelqvist, I., & Mendes, E. (2007). Reexamining the egg-box model in calcium- -alginate gels with X-ray diffraction. Biomacromolecules, 8, 464-468.10.1021/bm060550a17291070
Search in Google Scholar
9. World Nuclear Association. (2011). WNA Radioactive Waste Management. Retrieved April 29, 2011, from http://www.tinyurl.com/448n8k7.
Search in Google Scholar
10. U.S. Environmental Protection Agency. (2011). EPA. Strontium. Retrieved April 29, 2011, from http:// www.tinyurl.com/ye5y6g4EPA.
Search in Google Scholar
11. Krejci, M. R., Finney, L., Vogt, S., & Joester, D. (2011). Selective sequestration of strontium in desmid green algae by biogenic co-precipitation with barite. ChemSusChem, 4, 470-473.10.1002/cssc.20100044821488170
Search in Google Scholar
12. Fuks, L., Oszczak, A., Gniazdowska, E., & Sternik, D. (2015). Calcium alginate and chitosan as potential sorbents for strontium radionuclide. J. Radioanal. Nucl. Chem., 304, 15-20.10.1007/s10967-014-3698-5
Search in Google Scholar
13. European Nuclear Society. (2013). Decontamination factor. Retrieved March 17, 2013, from http://www.euronuclear.org/info/encyclopedia/d/decontaminationfactor.html.
Search in Google Scholar
14. Filipiuk, D., Fuks, L., & Majdan, M. (2005). Transition metal complexes with uronic acids. J. Mol. Struct., 744/747, 705-709.10.1016/j.molstruc.2004.11.073
Search in Google Scholar
15. Wang, J., & Chen, C. (2009). Biosorbents for heavy metals removal and their future. Biotechnol. Adv., 27, 195-226.10.1016/j.biotechadv.2008.11.00219103274
Search in Google Scholar
16. Soares, J. P., Santos, J. E., Chierice, G. O., & Cavalheiro, E. T. G. (2004). Thermal behavior of alginic acid and its sodium salt. Ecl. Quim., 29, 57-63.10.1590/S0100-46702004000200009
Search in Google Scholar

Sorption of Sr-85 and Am-241 from liquid radioactive wastes by alginate beads

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