This paper presents aspects of site decommissioning and clearance of a former fuel fabrication facility (development and production of fuel assemblies for research reactors and HTR) at Hanau (Germany). The main pathways for environmental contamination were deposition on soil surface and topsoil and pollution of deep soil and the aquifer by waste water channel leakage. Soil excavation could be done by classical excavator techniques. An effective removal of material from the saturated zone was possible by using advanced drilling techniques. A large amount of demolished building structure and excavated soil had to be classified. Therefore the use of conveyor detector was necessary. Nearly 100000 Mg of material (excavated soil and demolished building material) were disposed of at an underground mine. A remaining volume of 700 m3 was classified as radioactive waste. Site clearance started in 2006. Groundwater remediation and monitoring is still ongoing, but has already provided excellent results by reducing the remaining Uranium considerably.
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ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management
September 8–12, 2013
Brussels, Belgium
Conference Sponsors:
- Nuclear Engineering Division
- Environmental Engineering Division
ISBN:
978-0-7918-5602-4
PROCEEDINGS PAPER
Remediation of Subsurface and Groundwater Contamination With Uranium From Fuel Fabrication Facilities at Hanau (Germany)
Olaf Nitzsche,
Olaf Nitzsche
Brenk Systemplanung GmbH, Aachen, Germany
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Stefan Thierfeldt,
Stefan Thierfeldt
Brenk Systemplanung GmbH, Aachen, Germany
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Lothar Hummel
Lothar Hummel
TÜV Süd AG, München, Germany
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Olaf Nitzsche
Brenk Systemplanung GmbH, Aachen, Germany
Stefan Thierfeldt
Brenk Systemplanung GmbH, Aachen, Germany
Lothar Hummel
TÜV Süd AG, München, Germany
Paper No:
ICEM2013-96073, V002T03A014; 8 pages
Published Online:
February 18, 2014
Citation
Nitzsche, O, Thierfeldt, S, & Hummel, L. "Remediation of Subsurface and Groundwater Contamination With Uranium From Fuel Fabrication Facilities at Hanau (Germany)." Proceedings of the ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management. Volume 2: Facility Decontamination and Decommissioning; Environmental Remediation; Environmental Management/Public Involvement/Crosscutting Issues/Global Partnering. Brussels, Belgium. September 8–12, 2013. V002T03A014. ASME. https://doi.org/10.1115/ICEM2013-96073
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