Natural remediation of surface water systems used as deposits of nuclear industry waste by humic substances. Natural remediation of contaminated surface waters by humic substances

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Titel: Natural remediation of surface water systems used as deposits of nuclear industry waste by humic substances. Natural remediation of contaminated surface waters by humic substances
Autor(en): Aleksandrova, Olga
Erstgutachter: Prof. Dr. Michael Matthies
Zweitgutachter: Prof. Dr. Gerald Kirchner
Prof. Dr. Bogomolova
Zusammenfassung: Presented investigation and quantification of natural remediation of highly contaminated surface water systems located in South Ural via humic substances is the first step for sustainable developing of nuclear industry. In the surface water systems, humic substances are shown to promote the immobilization of radionuclides and decreasing of the bioavailability for fish contamination in the investigated water bodies. As proved in this thesis, the influence of humic substances on radionuclide sorption is provided by their special properties of a reversible transform into micelles. The theoretical approach based on consideration of protons as fermion gas in water solution was assumed and applied to this phenomenon, being due to the duel nature of humic substances molecules. The influence of humic substances is quantified as a modified Henry s low of sorption. Investigation of changing of electrostatical status of micelles with increasing of humic substances concentration in water solution leads to modelling of remediation effect of humic substances in respect to influence on fish in contaminated waters. This effect was interpreted and quantified, based on properties of proteins of gill s cell membranes under certain conditions in water solution. Humic substances appreciably influence the chemical and biological interactions between radionuclides and the environment that has experienced increasing interest concerning the remedial uses of humic materials.
URL: https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-2009102627
Schlagworte: radionuclide; nuclear waste; natural remediation; humic substances; contaminated surface waters; bioacumulation; modified Henry s low of sorption
Erscheinungsdatum: 23-Okt-2009
Enthalten in den Sammlungen:FB06 - E-Dissertationen

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