79Se in radioactive waste produced during NPP A-1 decommissioning

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F15%3A00240316" target="_blank" >RIV/68407700:21340/15:00240316 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

79Se in radioactive waste produced during NPP A-1 decommissioning

Original language description

Procedure for 79Se determination in radioactive wastes coming from decommissioning of NPP A-1 is proposed and verified. Solid samples (ion exchangers, sludge, sial matrix, carbon steel) were transferred into solution using the microwave decomposition method. 79Se was separated and purified by Se reduction hydroxylamine hydrochloride and ion exchange chromatography. 79Se yield was determined gravimetrically by weighting the Se0 precipitate. The sufficiently high (>103 ? 105) decontamination factors - Dfof interfering radionuclides make possible the 79Se counting using liquid scintillation counter (LSC-TDCR) and scintillation cocktail Ultima Gold AB Hionic fluor. In all analyzed samples the determined activities of 79Se were lower than MDA that ranges from 102 to 105 Bq per kg or litre of the sample. Nevertheless such analyses permit the decision concerning the storage of solidified wastes in the Mochovce regional repository.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DL - Nuclear waste, radioactive pollution and control

OECD FORD branch

—

Project

<a href="/en/project/FR-TI3%2F245" target="_blank" >FR-TI3/245: Research and development of the radwaste treatment technologies and of the system of radwaste management for nuclear new builds</a><br>

Continuities

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

Publication year

2015

Confidentiality

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

Name of the periodical

Bezpečnost jaderné energie

ISSN

1210-7085

e-ISSN

—

Volume of the periodical

23

Issue of the periodical within the volume

5/6

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

5

Pages from-to

154-158

UT code for WoS article

—

EID of the result in the Scopus database

—