Applicability of anion exchange resin used at nuclear power plants for separating iodides from solutions containing boric acid 

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F25%3AN0000023" target="_blank" >RIV/26722445:_____/25:N0000023 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S1738573325000294" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1738573325000294</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.net.2025.103461" target="_blank" >10.1016/j.net.2025.103461</a>

Result language

angličtina

Original language name

Applicability of anion exchange resin used at nuclear power plants for separating iodides from solutions containing boric acid 

Original language description

At nuclear power plants, boric acid is used as a moderator of nuclear reactions, and iodine species are formed as products of fission reactions in the fuel rods. If many fuel rods were broken during the reactor operation or in the case of a nuclear accident, an increase of radioactivity associated with an increase of iodides concentration in the primary coolant could endanger reactor operation. Therefore, we examined the applicability and efficiency of the ion exchange resin DuPontTM AmberliteTM IRN78 OH, which is already in use at Czech nuclear power plants, for the separation of iodides from solutions containing boric acid. We performed a set of experiments with various iodides and boric acid concentrations, with two different ion exchange resin loads, and at two different temperatures. Sorption isotherm experiments were used to evaluate the removal efficiency of the ion exchanger for iodides and for boric acid, as well as to fit the Langmuir isotherm. Kinetic experiments were used to study the kinetics of the adsorption on the ion exchanger, as well as to investigate the mechanism of iodides adsorption on the ion exchange resin - pseudo-first order, pseudo-second order, and intra-particle diffusion models were applied to the experimental data.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10402 - Inorganic and nuclear chemistry

Project

—

Continuities

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Publication year

2025

Confidentiality

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

Name of the periodical

Nuclear Engineering and Technology

ISSN

1738-5733

e-ISSN

—

Volume of the periodical

57

Issue of the periodical within the volume

6

Country of publishing house

KR - KOREA, REPUBLIC OF

Number of pages

8

Pages from-to

1-8

UT code for WoS article

001455142700001

EID of the result in the Scopus database

2-s2.0-85215558662