About: Characterization and preparation of TiO-PAN sorbent

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The uranium separation from natural waters was studied at the Department of Nuclear Chemistry in late 80's and early 90's. TiO-PAN sorbent (titanium dioxide embedded in polyacrylonitrile) embodied high sorption capacity for uranium. The purpose of this project was the thorough characterization of TiO-PAN sorbent with dynamic and static experiments which include kinetic experiments, sorption isotherm, effect of several ions (Ca2+; Mg2+; Fe3+; NO3 -; SO42-;Cl-; CO32-) (V/m = 500 ml/g). It was found that CO32-, SO42- and NO3- ions have a positive effect on uranium sorption and on the other hand Cl- ions have a negative sorption effect. Specific surface area was measured and compared with results gained in 2001. The uranium concentrations were determined by Time Resolved Laser Induces Fluorescence Spectrometry (TRLFS) which allows us to measure uranium concentrations up to ppb level. A strong influence of Cl- ions present in the solutions was seen, thus the calibration of TRLFS has to be made in order to determine the correct uranium concentration. The uranium separation from natural waters was studied at the Department of Nuclear Chemistry in late 80's and early 90's. TiO-PAN sorbent (titanium dioxide embedded in polyacrylonitrile) embodied high sorption capacity for uranium. The purpose of this project was the thorough characterization of TiO-PAN sorbent with dynamic and static experiments which include kinetic experiments, sorption isotherm, effect of several ions (Ca2+; Mg2+; Fe3+; NO3 -; SO42-;Cl-; CO32-) (V/m = 500 ml/g). It was found that CO32-, SO42- and NO3- ions have a positive effect on uranium sorption and on the other hand Cl- ions have a negative sorption effect. Specific surface area was measured and compared with results gained in 2001. The uranium concentrations were determined by Time Resolved Laser Induces Fluorescence Spectrometry (TRLFS) which allows us to measure uranium concentrations up to ppb level. A strong influence of Cl- ions present in the solutions was seen, thus the calibration of TRLFS has to be made in order to determine the correct uranium concentration. (en)
Title	Characterization and preparation of TiO-PAN sorbent Characterization and preparation of TiO-PAN sorbent (en)
skos:prefLabel	Characterization and preparation of TiO-PAN sorbent Characterization and preparation of TiO-PAN sorbent (en)
skos:notation	RIV/68407700:21340/12:00199549!RIV13-MPO-21340___
http://linked.open...avai/predkladatel	Fakulta jaderná a fyzikálně inženýrská
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(FR-TI3/245), S
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Šebesta, Ferdinand Zavadilová, Alena Špendlíková, Irena Raindl, Jakub Němec, Mojmír
http://linked.open.../riv/druhVysledku	O - Ostatní výsledky nezařaditelné do žádného z výše uvedených druhů výsledku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta jaderná a fyzikálně inženýrská
http://linked.open...dnocenehoVysledku	126791
http://linked.open...ai/riv/idVysledku	RIV/68407700:21340/12:00199549
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	uranium; TiO-PAN (en)
http://linked.open.../riv/klicoveSlovo	uranium TiO-PAN
http://linked.open...ontrolniKodProRIV	[72CB98C89129]
http://linked.open...in/vavai/riv/obor	CH
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Research and development of the radwaste treatment technologies and of the system of radwaste management for nuclear new builds
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Zavadilová, Alena Šebesta, Ferdinand Špendlíková, Irena Němec, Mojmír Raindl, Jakub
http://localhost/t...ganizacniJednotka	21340

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