Tailings management: problems and solutions in the mining industry
著者
書誌事項
Tailings management: problems and solutions in the mining industry
（Process metallurgy, 6）
Elsevier Scientific Pub. Co. , distributors for the United States and Canada, Elsevier Science Publishing Co., Inc. . c1989
- alk paper
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注記
Includes bibliographies and index
内容説明・目次
内容説明
Environmentally, the past 10-15 years have experienced a very positive approach to improving the quality of effluents discharged from mining and milling processes, and ultimately the quality of seepage from the tailings impoundment area into the environment. This book assembles all the various aspects of the process and of tailings management which have an impact on the environment, thus providing significant examples to help those involved in tailings problems. The text is devoted to the many practical aspects of tailings management - the concerns, the problems, the solutions where knowledge exists, and the presentation of a methodology to examine mine and metallurgical wastes for the ultimate objective of designing the best disposal option for that particular site. Contents: 1. Mining - The Issues. Introduction. Tailings and waste rock analyses. Disposal. Reclamation. Water recycle. In-plant abatement. Toxicity of effluents. Ongoing research. Concerns of public and legislative bodies. Corporate responsibility. 2. Development of Waste Water Regulations and Guidelines. 3. Influence of the Mining and Mineral Extraction Process. Introduction. Mining.
目次
1. Mining - The Issues. Introduction. Tailings and waste rock analyses. Disposal. Reclamation. Water recycle. In-plant abatement. Toxicity of effluents. Ongoing research. Concerns of public and legislative bodies. Corporate responsibility. 2. Development of Waste Water Regulations and Guidelines. 3. Influence of the Mining and Mineral Extraction Process. Introduction. Mining. Crushing, grinding, beneficiation and mineralogy. Leaching. Liquid-solids separation. Solution purification and product recovery. Conservation and by-product recovery. Chemistry. Control. 4. Toxicity of Mining and Milling Reagents to the Environment. Introduction. Toxicity of some selected reagents in the milling circuit. Toxicity of some petrochemicals to fish. Reagent biodegradability. Effects of soluble metal-extractant complexes. 5. Tailings Impoundment Selection and Design. Introduction. Tailings and waste rock characteristics. Design of overall treatment system. Impoundment design for tailings. Design for waste dumps. Liners and barriers. 6. Tailings Deposition. Introduction. Deposition methods. 7. Water Management. Criteria. Control of water in the impoundment area. Tailings ponds. Dewatering of tailings. Water recycling and reuse. 8. Monitoring of Tailings Impoundment Site. 9. Sampling and Analysis. Introduction. Sampling. Analyses. Speciation procedure. Analytical techniques for soils. 10. Weathering and Migration Processes. Introduction. Global cycles. Characterization of tailings and waste rock. Hydrogeology influences. Dissolution, precipitation and exchange processes. Eh - pH relationships. Oxidation of sulphides, acid drainage and prevention. Soil development profile. Migration. The ecosystem. Conclusions and summary. 11. Effluent Treatment for Environmental Control. Introduction. Control and prevention of acid mine drainage. Treatment of acidic and other waste waters. Biological and ecological systems. 12. Some Specific Tailings. Decommissioning, Reclamation and Covers. Introduction. Alumina plant tailings. Base metals. Coal. Flotation circuits. Gold. In-situ operations. Iron ore. Oil sands tailings. Phosphate rock. Potash. Sand and gravel. Titanium. Uranium. 13. Decommissioning, Reclamation and Covers. Introduction. Covers. Possible close-out options. Conclusion. 14. Methodology and Plan for Investigating Weathering, Migration and Close-Out - The Model. Introduction. Source terms. The model. Weathering and migration studies. Modelling. Chemical, physical and natural barriers. Examination of tailings and/or waste rock for eventual cover and close-out: summary. 15. Costs of Disposal Options and Management. Introduction. Tailings treatment in mill. Slurry thickening. Slurry transport. Tailings impoundment. Effluent treatment. Effluent transport and/or evaporation. Restoration of tailings area. Sampling and analysis. Evaluation of costs. Appendix I. Conversion units. Subject Index.
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