Turning a Problem Into a Resource: Remediation and Waste Management at the Sillam??e Site, Estonia: 28 - Brossura

Rofer, Cheryl K.; Kaasik, T??nis

Brossura

ISBN 10: 0792361873 ISBN 13: 9780792361879

Casa editrice: Springer, 2008

Riassunto

The Sillamae Metallurgy Plant in Estonia was managed by the USSR Ministry of Medium-Scale Engineering and was built in 1946 to produce uranium metal from local shales. After these were found to be unsatisfactory, uranium ores were imported. Part of the plant was converted in the 1980s to produce rare earth oxides and niobium and tantalum from imported ores and concentrates. Uranium production on the site ceased in 1990. Environmental liabilities at Sillamae include a large pond, located on the shore of the Gulf of Finland, containing tailings from the metals processing and oil shale ash from power production. The pond's dike must be stabilized, and dust emissions, uranium and nitrate leaching must be addressed to bring the site into compliance with environmental regulations. Wastes from current processing are still being discharged to the pond, and this must cease by the end of 2002. Remediation is estimated to cost USD 22.5 million. The present volume collects information on the current situation at Sillamae in the year 2000 and potential solutions to its problems, based on similar experience elsewhere. A great deal of oil shale ash is present at the site and solutions to this problem may well be applicable to other sites in surrounding areas. The plant itself was closed to ethnic Estonians during the USSR's management, being populated predominantly by ethnic Russians. The technical problems are thus also addressed in broad context, meaning that the volume should also be useful to urban planners and economists.

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Contenuti

Acknowledgments; C.K. Rofer, T. Kaasik. Introduction and Recommendations; C.K. Rofer, T. Kaasik. Introductory Material: The Situation at Sillamäe. Industrial Complex in Northeast Estonia: Technical, Economic and Environmental Aspects; M. Veiderma. Uranium Processing at Sillamäe and decommissioning of the Tailings; E. Lippmaa, E. Maremäe. Sillamäe - A Common Baltic Concern; J.O. Snihs. Master Plant for Remediation of the Sillamäe Tailings Pond and Technical Design Project; T. Kaasik. Site Monitoring; V. Nosov. Stability of the Dam at the Sillamäe Tailings Pond; M. Mets, H. Torn. Process Flow Sheet; V. Petrenko, A. Siinmaa. Rare Earth Production at the Sillamäe Plant, 1969-1991 and the Possibility of Scandium Extraction from Loparite; V.D. Kosynkin, V.J. Nikonov. Indoor Occupational Exposure to Radiation at the Silmet Plant in Estonia: A Preliminary Assessment; R. Mustonen, et al. Experience with Uranium Tailings in Other Countries. Remediation of the Former Uranium Mine Ranstad; B. Sundblad. Remediation of Tailings Dams; A.G. Benckert. Remediation Concepts for Uranium Mining Operations in CEEC: A Phare Multi-Country Environmental Sector Programme; J. Vrijen. WISMUT Experience in Remediation of Uranium Mill Tailings Ponds; A.T. Jakubick and M. Hagen. Post-Remediation Monitoring and Maintenance Experience at Uranium Mill Tailings Sites, United States; C.A. Jones, et al. Current State of Remediation of Tailings Ponds and Their Surroundings in Hungary; I. Benkovics, et al. The Environmental Impact of Former Uranium Mining Activities at the Novoveska Huta site, Slovakia; M. Kosik. A `Heritage' from Uranium Mining in Poland; Z. Waclawek, et al. A Field Study of Capillary and HydraulicBarriers in Landfill Covers Varying in Slope at Los Alamos, New Mexico, USA; J.W. Nyhan, et al. Regulatory and Legal Issues. Estonian Radiation Protection Requirements and the Sillamäe Site; E. Realo. Legal Responsibility and Liability for the Sillamäe Site; G. Hedelius. Regulations and Requirements &endash; Swedish Approach; J.O. Snihs. Nordic Experience with Environmental Regulations; K. Brodén. Assessment of Options. Outline of a Multiattribute Utility Approach to Development of a Waste Management Strategy at Sillamäe; P.C. Anselmo. The Potential for Economic Recovery of Metals from the Sillamäe Site; G.A. Davis. Applicable Technologies. Oil Shale Ash: Its Characterization and Possible Use in Remediation at the Sillamäe Site; T. Laur, V. Kikas. Types of Oil Shale Ash and Methods for Increasing Their Reactivity; R. Kuusik, T. Kaljuvee. Utilization of Semi-Coke for Energy Production; J. Uustalu. Magnetic Separation for Rare Earth Oxide Recovery at Sillamäe, Estonia; L.M. Worl, et al. Purification and Utilization of Waste Waters from Silmet Plant Containing Ammonium Salts; G. Rajalo, et al. New Approaches for the Treatment of Naturally Occurring Radioactive Materials; L.M.M. Roelofs, R.B. Wiegers.Ash Cements Stabilized by Supercritical Co2 Carbonation for Tailings Pond Overlayer; J.B. Rubin, et al. A Novel Chemical Nitrate Destruction Process; J. Dziewinski, S. Marczak.

Dettagli dell'edizione

• Editore: Springer
• Data di pubblicazione: 2008
• Lingua: Inglese
• ISBN 10: 0792361873
• ISBN 13: 9780792361879
• Rilegatura: Copertina flessibile
• Numero di pagine: 296
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