Development of an object-specific remediation solution for the waste rock dumps at the formerly abandoned Wismut sites
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J. Regner
Abstract
The investigation of the radiation situation is an essential part of preparing the remediation of the formerly abandoned Wismut sites. If the exposure is relevant, then the exposure pathway “inhalation of radon/radon daughters” plays the dominant role. Therefore, the development of a straightforward approach suitable for the evaluation of the involved radon situation is one of the most important tasks. It has to include the whole chain beginning with the characterization of the relevant exposure situation and ending up with the identification of remedial options. For that purpose a new technique of visualizing the radon flux from the waste rock dumps has been developed. The specific conditions at formerly abandoned Wismut sites will be demonstrated and the remediation solutions envisaged to reduce the radon flux will be explained.
Kurzfassung
Im Rahmen der Sanierungsvorbereitung von Wismut-Altstandorten ist die Strahlenexpositionssituation zu untersuchen. Dabei zeigt sich, dass der Expositionspfad „Inhalation von Radon/Radonzerfallsprodukten“ in den Fällen, in denen sanierungsrelevante Strahlenexpositionen auftreten, eine dominierende Rolle spielt. Die spezielle Situation der Wismut-Altstandorte erfordert die Entwicklung einer Untersuchungsmethodik zur Bewertung der Radonsituation an Halden. Diese Untersuchungsmethodik reicht von der Identifizierung einer relevanten Expositionssituation über die Ursachenerkundung bis hin zur Ableitung der Sanierungslösung. Innovative Verfahren zur Charakterisierung des Radonfreisetzungsverhaltens der Halden sind Bestandteil der Untersuchungsmethodik. Die besonderen Randbedingungen der Wismut-Altstandorte und die daraus resultierenden objektangepassten Sanierungslösungen zur Reduzierung der Radonfreisetzung werden erläutert.
References
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© 2008, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents/Inhalt
- Contents
- Summaries/Kurzfassungen
- Summaries
- Technical Contributions/Fachbeiträge
- Radiation protection aspects in natural radioactivity
- Notifiable work activities in water supply facilities – execution experience from Bavaria
- Phenomenological model of TENORM formation in industrial processes
- Consideration of statistical uncertainties for the determination of representative values of the specific activity of wastes
- Radiological evaluation of mine water discharges from hard coal mining in the Fossa Eugeniana Area, Germany
- Development of an object-specific remediation solution for the waste rock dumps at the formerly abandoned Wismut sites
- Meteorological influences on the results of area dose rate measurements
- Optimization of the selection of analysis methods for the determination of naturally occurring radionuclides
- On the determination of the ingestion dose in drinking and mineral water
- Radon in Austria: metrology and practice
- Prediction of indoor radon in Germany on a regional scale
- Workplaces with natural radionuclides – investigation results from Bavaria
Artikel in diesem Heft
- Contents/Inhalt
- Contents
- Summaries/Kurzfassungen
- Summaries
- Technical Contributions/Fachbeiträge
- Radiation protection aspects in natural radioactivity
- Notifiable work activities in water supply facilities – execution experience from Bavaria
- Phenomenological model of TENORM formation in industrial processes
- Consideration of statistical uncertainties for the determination of representative values of the specific activity of wastes
- Radiological evaluation of mine water discharges from hard coal mining in the Fossa Eugeniana Area, Germany
- Development of an object-specific remediation solution for the waste rock dumps at the formerly abandoned Wismut sites
- Meteorological influences on the results of area dose rate measurements
- Optimization of the selection of analysis methods for the determination of naturally occurring radionuclides
- On the determination of the ingestion dose in drinking and mineral water
- Radon in Austria: metrology and practice
- Prediction of indoor radon in Germany on a regional scale
- Workplaces with natural radionuclides – investigation results from Bavaria
