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Radiocesium Adsorption By Zeolitic Materials Synthesized From Coal Fly Ash


Brown coal fly ash derived from the combustion of brown-coal in power plant ENO Nováky (Slovak Republic) was used as raw material for synthesis of zeolitic materials ZM1 and ZM3 by hydrothermal alternation with 1M NaOH and 3M NaOH, respectively. Fly ash and synthesized products were characterized using XRF and SEM-EDX analysis. Subsequently, zeolitic materials were tested as sorbents to remove Cs+ ions from aqueous solutions using radiotracer technique. Sorption of cesium by both types of zeolitic materials obeys Langmuir adsorption isotherm model. The maximum sorption capacities Qmax at pH 6.0 calculated from Langmuir isotherm were 1203 ± 65 μmol Cs+/ g for ZM1 and 1341 ± 66 μmol Cs+/ g for ZM3. The results showed that alkali treated fly ash can be used as effective sorbent for radiocesium removal from contaminated solutions

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A New Approach to Identification of Biomarkers for Early Cancer Stage Detection

References BAKER, R.R.: Smoke generation inside a burning cigarette: Modifying combustion to develop cigarettes that may be less hazardous to health. Prog. Energy Combust. Sci., 32, 2006, 373-385. BUSZEWSKI, B., RUDNICKA, J., LIGOR, T., WALCZAK, M., JEZIERSKI, T., AMANN, A., Analytical and unconventional methods of cancer detection using odor. TrAC, 38, 2012, 1-12. COLLINS, L.G., HAINES, C., PERKEL, R., ENCK, R.E.: Lung cancer: diagnosis and mamagement. Am. Fam. Physician, 75, 2006, 56-63. DENG

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Adsorptive removal of ciprofloxacin and isoniazid from aqueous solution

-161. Spence A, Kelleher BP (2012) FT-IR spectroscopic analysis of kaolinite–microbial interactions. Vib. Spectrosc. 61: 151-155. Sprynskyy M, Kowalkowski T, Tutu H, Cukrowska EM, Buszewski B (2011) Adsorption performance of talc for uranium removal from aqueous solution. Chem. Eng. J., Special Section: Symposium on Post-Combustion Carbon Dioxide Capture 171: 1185-1193. Sun D, Wang L (2015) Utilization of paraffin/expanded perlite materials to improve mechanical and thermal properties of cement mortar. Constr. Build. Mater. 101, Part 1: 791-796. Sutcu M

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