Journal
DESALINATION AND WATER TREATMENT
Volume 127, Issue -, Pages 272-281Publisher
DESALINATION PUBL
DOI: 10.5004/dwt.2018.22762
Keywords
Adsorption; Bentonite; Organobentonite; Zeolite; Organozeolite; Intercalation; HDTMA; Uranium
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Funding
- Grant Slovak Research and Development Agency APVV project [SK-AT-2015-0003]
- Agency of the Ministry of Education, Science, Research and Sport of the Slovak Republic [1/0507/17]
- Slovak Academy of Sciences VEGA project [1/0507/17]
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The novelty of this work consists in the new organo-adsorbents development for anionic forms of uranium adsorption by bentonites and zeolites from Greek deposits with significant meaning. The main aim of this study was the comparison between Greek bentonite Kimolos and zeolite Metaxades, natural and organo-modified forms towards adsorption of U(VI) from aqueous solution. Chemical modification method with hexadecyltrimethylammonium bromide (HDTMABr) was used for organo-forms preparation. The effect of pH and contact time, as well as kinetic, isotherms and thermodynamic adsorption of U(VI) on studied bentonite and zeolite has been investigated by batch experiments and discussed by different mathematical models. The study indicates that prepared HDTMA forms can be potentially used as promising low-cost adsorbents for U(VI) removal in waste water treatment.
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