Development of new processes for the decommissioning decontamination and for treatment and disposal of the secondary low- and intermediate-level radioactive waste

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F21%3A00347437" target="_blank" >RIV/68407700:21340/21:00347437 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.7733/jnfcwt.2021.19.1.9" target="_blank" >https://doi.org/10.7733/jnfcwt.2021.19.1.9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.7733/jnfcwt.2021.19.1.9" target="_blank" >10.7733/jnfcwt.2021.19.1.9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Development of new processes for the decommissioning decontamination and for treatment and disposal of the secondary low- and intermediate-level radioactive waste

Popis výsledku v původním jazyce

As an example of research activities in decontamination for decommissioning, new data are presented on the options for corrosion layer dissolution during the decommissioning decontamination, or persulfate regeneration for decontamination solutions re-use. For the management of spent decontamination solutions, new method based on solvent extraction of radionuclides into ionic liquid followed by electrodeposition of the radionuclides has been developed. Fields of applications of composite inorganic-organic absorbers or solid extractants with polyacrylonitrile (PAN) binding matrix for the treatment of liquid radioactive waste are reviewed; a method for americium separation from the boric acid containing NPP evaporator concentrates based on the TODGA-PAN material is discussed in more detail. Performance of a model of radionuclide transport, developed and implemented within the GoldSim programming environment, for the safety studies of the LLW / ILW repository is demonstrated on the specific case of the Richard repository (Czech Republic). Continuation and even broadening of these activities are expected in connection with the approaching end of the lifespan of the first blocks of the Czech NPPs.

Název v anglickém jazyce

Development of new processes for the decommissioning decontamination and for treatment and disposal of the secondary low- and intermediate-level radioactive waste

Popis výsledku anglicky

As an example of research activities in decontamination for decommissioning, new data are presented on the options for corrosion layer dissolution during the decommissioning decontamination, or persulfate regeneration for decontamination solutions re-use. For the management of spent decontamination solutions, new method based on solvent extraction of radionuclides into ionic liquid followed by electrodeposition of the radionuclides has been developed. Fields of applications of composite inorganic-organic absorbers or solid extractants with polyacrylonitrile (PAN) binding matrix for the treatment of liquid radioactive waste are reviewed; a method for americium separation from the boric acid containing NPP evaporator concentrates based on the TODGA-PAN material is discussed in more detail. Performance of a model of radionuclide transport, developed and implemented within the GoldSim programming environment, for the safety studies of the LLW / ILW repository is demonstrated on the specific case of the Richard repository (Czech Republic). Continuation and even broadening of these activities are expected in connection with the approaching end of the lifespan of the first blocks of the Czech NPPs.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Journal of Nuclear Fuel Cycle and Waste Technology

ISSN

1738-1894

e-ISSN

2288-5471

Svazek periodika

19

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

KR - Korejská republika

Počet stran výsledku

19

Strana od-do

9-27

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85104728294