Pre-enrichment of radioactive cesium in muddy water separated into suspended and dissolved substances for trace analysis.
Adsorption
Cross filter
Prussian blue
Radioactive cesium
Trace analysis
Journal
Water research
ISSN: 1879-2448
Titre abrégé: Water Res
Pays: England
ID NLM: 0105072
Informations de publication
Date de publication:
01 05 2019
01 05 2019
Historique:
received:
08
09
2018
revised:
05
12
2018
accepted:
12
01
2019
pubmed:
16
2
2019
medline:
16
10
2019
entrez:
16
2
2019
Statut:
ppublish
Résumé
A new in-situ pre-enrichment system was developed for trace analysis of radioactive Cs in environmental water such as rivers, ponds, and seas, where the radioactive Cs is separated into suspended substances (SS) and dissolved substances (DS). The SS component was collected as the enrichment slurry by cross-flow filtration, thereby compact systems were realized. The DS component was collected in a small cartridge filled with a non-woven fiber with immobilized adsorbent nanoparticles. The recovery rate was estimated at around 95%. The size distribution of the SS and the concentration of radioactive Cs after enrichment were the same as that of the raw water before enrichment. The condensed SS can be used for other evaluations such as ignition loss. From the field test at a pond in the Fukushima-area, the Cs concentration of the SS was found to be 4-5 times higher than that of the sediment in the same pond. The organic content estimated by ignition loss was also three times higher.
Identifiants
pubmed: 30769275
pii: S0043-1354(19)30085-5
doi: 10.1016/j.watres.2019.01.031
pii:
doi:
Substances chimiques
Cesium Radioisotopes
0
Water Pollutants, Radioactive
0
Water
059QF0KO0R
Cesium
1KSV9V4Y4I
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
28-33Informations de copyright
Copyright © 2019 Elsevier Ltd. All rights reserved.