Scholarly record
THE USE OF PASTE FOR DISPOSAL OF MILL TAILINGS
Abstract
In recent years, use of paste backfill has evolved from an experimental backfill method with limited application to a technically viable and economically attractive alternative. This is primarily due to the development of dewatering and transportation systems that allow for controlled and consistent production and delivery of paste in a cost-effective manner. In addition, it has been recognized that underground backfill provides for a mechanism to safely dispose of mine wastes such as tailings, which results in cost savings and reduced immediate and long-term liability. Minimizing this liability through a reduction in surface disposal will have a beneficial effect on the feasibility of any mining venture. In addition to use of paste for underground backfill, the improvements in dewatering and transport technology have generated industry interest in disposal of tailings as a paste. The benefits of paste technology for disposal of acid-generating tailings are many, and cover a wide range of issues, including design, operation, reclamation, environmental protection, and public perception. This paper focuses on the potential environmental benefits afforded by use of paste technology when tailings are acid-generating.
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References20
3th International Multidisciplinary Scientific GeoConference SGEM2003 www.sgem.org
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