Article
Article name Speciation of cesium-137 in natural waters of semipalatinsk test site in laboratory and full-scale experiments
Authors Toropov A.. postgraduate, torop990@gmail .com
Bibliographic description Toropov A. Spéciation of Cesium-137 in natural waters of Semipalatinsk Test Site in laboratory and full-scale experiments //Transbaikal State University Journal, 2017, vol. 23, no. 12, pp. 59-68. DOI: 10.21209¡2227- 9245-2017-23-12-59-68.
Category Earth science
DOI 556:504.454:504.454(574.42)
DOI 10.21209/2227-9245-2017-23-12-59-68
Article type Original article
Annotation The relevance of the study is determined by the ability of 137Cs to move beyond the nuclear test sites at significant quantities in surface water bodies of the former Semipalatinsk Test Site. It is shown that the spéciations of a given radionuclide experimentally and theoretically poorly investigated. A study was made of the spéciations of 137Cs distribution in laboratory experiments and in water bodies of the Semipalatinsk Test Site, carried out by the method of sequential cascade filtration. The mineralization and pH of water were determined using by the Anion-4100 instrument, the content of 137Cs — after preliminary concentration by gamma spectrometry with a highly sensitive semiconductor detector made of high-purity germanium. It is established that this radionuclide is mainly exist in suspended, pseudocolloidal and, partially, in dissolved form (up to 10 %). In natural waters, enriched with dissolved organic matter, increased proportions of colloidal and pseudocolloid forms of this radioactive element are observed
Key words radionuclides, waterbodies, model solutions, cesium-137, migration, contaminant transport, ultrafiltration, colloids, suspended matter, Semipalatinsk Test Site
Article information
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Full articleSpeciation of cesium-137 in natural waters of semipalatinsk test site in laboratory and full-scale experiments