Turning a Problem into a Resource: Remediation and Waste Management at the Sillamae Site, Estonia

Turning a Problem into a Resource: Remediation and Waste Management at the Sillamae Site, Estonia

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In its present condition, the dam of the tailings pond is less stable than is recommended by international practice. A surveillance system has been established to observe both vertical and horizontal soil movement and the buildup of stresses in the soil. The stability of the dam depends primarily on erosion by shore processes and the consequent reduction of the counterbalance, as well as the reduction in strength of the Cambrian clay underlying the dam caused by creep and by water percolating to the bottom of the pond. The most critical need is to enlarge the counterbalance and to stop erosion. The surveillance system should be supplemented with a system of inclinometers. Monitoring of coastal processes should be continued. At present, the hydrodynamic stress on the dam is minimal because the pebble layer allows drainage of water out of the tailings pond and into the sea. The regulatory requirement to end emissions into the Baltic Sea must be met without causing undesirable hydrodynamic stresses on the dam. This could be done by covering the pond and diverting precipitation water. 9. References I. Report on Topographic-Geodetic Studies at the Tailings Pond. 1965, No. A-4-01187 (in Russian). 2. Report on Geotechnical Studies at the Tailings Pond of Plant PO Box 22. 1965, No. 64691 (in Russian). 3. Report on Topographic-Geodetic and Geotechnical Studies at the Thennal Power Plant's Ash Impoundment. 1976, No. 15740 (in Russian). 4. Technical Report on Topographic Planning of the Thennal Power Plant's Ash Impoundment. 1979, No.
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Product details

  • Paperback | 277 pages
  • 160 x 240 x 15.75mm | 920g
  • Dordrecht, Netherlands
  • English
  • Softcover reprint of the original 1st ed. 2000
  • 22 Illustrations, black and white; XVI, 277 p. 22 illus.
  • 0792361873
  • 9780792361879

Table of contents

Acknowledgments; C.K. Rofer, T. Kaasik. Introduction and Recommendations; C.K. Rofer, T. Kaasik. Introductory Material: The Situation at Sillamae. Industrial Complex in Northeast Estonia: Technical, Economic and Environmental Aspects; M. Veiderma. Uranium Processing at Sillamae and decommissioning of the Tailings; E. Lippmaa, E. Maremae. Sillamae - A Common Baltic Concern; J.O. Snihs. Master Plant for Remediation of the Sillamae Tailings Pond and Technical Design Project; T. Kaasik. Site Monitoring; V. Nosov. Stability of the Dam at the Sillamae Tailings Pond; M. Mets, H. Torn. Process Flow Sheet; V. Petrenko, A. Siinmaa. Rare Earth Production at the Sillamae 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 Sillamae Site; E. Realo. Legal Responsibility and Liability for the Sillamae Site; G. Hedelius. Regulations and Requirements Swedish Approach; J.O. Snihs. Nordic Experience with Environmental Regulations; K. Broden. Assessment of Options. Outline of a Multiattribute Utility Approach to Development of a Waste Management Strategy at Sillamae; P.C. Anselmo. The Potential for Economic Recovery of Metals from the Sillamae Site; G.A. Davis. Applicable Technologies. Oil Shale Ash: Its Characterization and Possible Use in Remediation at the Sillamae 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 Sillamae, 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.
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