Evaluation of a Novel Composite Sorbent for the Removal of Actinides and Lanthanides from Acidic Nuclear Waste Solutions

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of a Novel Composite Sorbent for the Removal of Actinides and Lanthanides from Acidic Nuclear Waste Solutions

Popis výsledku v původním jazyce

The well-known actinide extractant octyl (phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide (CMPO) has been loaded into sorbent granules using modified polyacrylonitrile (PAN) as an inert matrix. Extractant loading varied from 20 up to 33 wt.%. Thesematerials were then tested in dynamic column experiments to determine efficiency for removing selected actinides and lanthanides from acidic waste solutions. Breakthrough and regeneration curves were obtained using a simulated acidic waste solution spiked with lanthanide tracers. Kinetics and equilibrium behaviour of the composite sorbent is discussed. The well-known actinide extractant octyl (phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide (CMPO) has been loaded into sorbent granules using modified polyacrylonitrile (PAN) as an inert matrix. Extractant loading varied from 20 up to 33 wt.%. These materials were then tested in dynamic column experiments to determine efficiency for removing selected actinides and lanthanides.

Název v anglickém jazyce

Evaluation of a Novel Composite Sorbent for the Removal of Actinides and Lanthanides from Acidic Nuclear Waste Solutions

Popis výsledku anglicky

The well-known actinide extractant octyl (phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide (CMPO) has been loaded into sorbent granules using modified polyacrylonitrile (PAN) as an inert matrix. Extractant loading varied from 20 up to 33 wt.%. Thesematerials were then tested in dynamic column experiments to determine efficiency for removing selected actinides and lanthanides from acidic waste solutions. Breakthrough and regeneration curves were obtained using a simulated acidic waste solution spiked with lanthanide tracers. Kinetics and equilibrium behaviour of the composite sorbent is discussed. The well-known actinide extractant octyl (phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide (CMPO) has been loaded into sorbent granules using modified polyacrylonitrile (PAN) as an inert matrix. Extractant loading varied from 20 up to 33 wt.%. These materials were then tested in dynamic column experiments to determine efficiency for removing selected actinides and lanthanides.

Druh

D - Stať ve sborníku

CEP obor

DL - Jaderné odpady, radioaktivní znečištění a kontrola

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

14th Radiochemical Conference

ISBN

80-01-02530-6

ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

297-297

Název nakladatele

ČVUT

Místo vydání

Praha

Místo konání akce

Mariánské lázně

Datum konání akce

14. 4. 2002

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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