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Title: Tritium Enrichment in the Hydration Sphere of Humic Substances

Abstract

Humic and fulvic acid can be combined under the term 'humic substances' and are natural substances with a complex structure. The structural details are not known, however, due to the functional groups present in these compounds the formation of hydrogen bonds is easily attained. Several humic substances were investigated for their potential use as compounds, which are applicable for tritium enrichment from aqueous solution. For comparison a simple compound, malonic acid, representing only few functional groups was investigated. The experiments were performed using a cryosublimation apparatus, which was run well below equilibrium vapor pressure to avoid any isotope fractionation of HTO and H{sub 2}O. A higher enrichment factor was found for natural humic acid compared to fulvic acid, however, no enrichment could be found for a synthetic humic acid and malonic acid. Interpretation of the results is difficult since no detailed information on the chemical structure of humic substances is known.

Authors:
; ;
Publication Date:
OSTI Identifier:
20854259
Resource Type:
Journal Article
Journal Name:
Fusion Science and Technology
Additional Journal Information:
Journal Volume: 48; Journal Issue: 1; Other Information: Copyright (c) 2006 American Nuclear Society (ANS), United States, All rights reserved. http://epubs.ans.org/; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1536-1055
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AQUEOUS SOLUTIONS; COMPARATIVE EVALUATIONS; ENRICHMENT; FRACTIONATION; FULVIC ACIDS; HUMIC ACIDS; HYDRATION; HYDROGEN; MALONIC ACID; TRITIUM; TRITIUM OXIDES; VAPOR PRESSURE

Citation Formats

Wierczinski, Birgit, Muellen, Guenther, and Tuerler, Andreas. Tritium Enrichment in the Hydration Sphere of Humic Substances. United States: N. p., 2005. Web.
Wierczinski, Birgit, Muellen, Guenther, & Tuerler, Andreas. Tritium Enrichment in the Hydration Sphere of Humic Substances. United States.
Wierczinski, Birgit, Muellen, Guenther, and Tuerler, Andreas. 2005. "Tritium Enrichment in the Hydration Sphere of Humic Substances". United States.
@article{osti_20854259,
title = {Tritium Enrichment in the Hydration Sphere of Humic Substances},
author = {Wierczinski, Birgit and Muellen, Guenther and Tuerler, Andreas},
abstractNote = {Humic and fulvic acid can be combined under the term 'humic substances' and are natural substances with a complex structure. The structural details are not known, however, due to the functional groups present in these compounds the formation of hydrogen bonds is easily attained. Several humic substances were investigated for their potential use as compounds, which are applicable for tritium enrichment from aqueous solution. For comparison a simple compound, malonic acid, representing only few functional groups was investigated. The experiments were performed using a cryosublimation apparatus, which was run well below equilibrium vapor pressure to avoid any isotope fractionation of HTO and H{sub 2}O. A higher enrichment factor was found for natural humic acid compared to fulvic acid, however, no enrichment could be found for a synthetic humic acid and malonic acid. Interpretation of the results is difficult since no detailed information on the chemical structure of humic substances is known.},
doi = {},
url = {https://www.osti.gov/biblio/20854259}, journal = {Fusion Science and Technology},
issn = {1536-1055},
number = 1,
volume = 48,
place = {United States},
year = {Fri Jul 15 00:00:00 EDT 2005},
month = {Fri Jul 15 00:00:00 EDT 2005}
}