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|LC Classifications||TD 899 M5G35 1989|
|The Physical Object|
Download Geotechnical aspects of tailings disposal and acid mine drainage
Surface paste disposal (SPD) technology has been investigated recently to solve the geotechnical (tailings dam failure) and geochemical (acid mine drainage formation) problems relating to tailings disposal. The tailings dam accidents occurred in the last few years have expedited the researches to search for safer tailings disposal methods in Cited by: 4.
Even if many aspects need to be optimized, these approaches can be considered today as interesting alternatives to Geotechnical aspects of tailings disposal and acid mine drainage book tailings management approaches.
Keywords: tailings, acid mine drainage, mining dams, geotechnical stability, geochemical stabilityCited by: Annual Book of ASTM Standards, vol ASTM, Falls tailings disposal facility.
In Geotechnical aspects of. tailings disposal and acid mine drainage. Can. Co-disposal or blending of reactive mine tailings with either potentially acid consuming or alkaline producing materials has been considered as a promising approach to limit AMD formation.
Basic materials like lime, limestone, and phosphate minerals (e.g., apatite) have been used because they consume H + generated by sulfidic tailings, a Cited by: Haile JP, Kerr JF () Design and operation of the Myra Falls tailings disposal facility.
In Geotechnical aspects of tailings disposal and acid mine drainage. Can. Geotech. Soc. (Vancouver), pp 1–15Cited by: The technique of mixing mine waste rock and tailings for disposal has the potential to avoid the problems of acid rock drainage and tailings liquefaction. This paper presents a rational basis for the design of mixtures based on particle packing theory and laboratory investigations.
The effect of water table elevation on acid mine drainage from reactive tailings: A laboratory and numerical modeling study. In Proceedings of the 7th ICARD, St.
Louis, Missouri, 27–30 March The American Society of Mining and Reclamation, pp. – The behaviour and geotechnical properties of waste rock and tailings are very different mostly due to their different particle sizes. The mutual ratio of waste rock and tailings affects to the properties and behaviour of the mixture and its suitability for co-disposal (Table 2).
Acid mine drainage (AMD) is an environmental problem produced when sulphides come in contact with an oxidant (± bacteria) and water, producing acid generation and metals leaching.
One solution proposed is to use red mud bauxite (RMB), which is very alkaline, to neutralize oxidized acidic tailings. Lime treatment of acid mine drainage (AMD) generates sludge that is commonly stored in ponds for dewatering.
The use of soil-aged sludge-based mixtures for mine site rehabilitation can allow the emptying of existing basins, thus extending their storage capacity, reducing the volume of the borrow soil pit required for mine site rehabilitation, and consequently reducing the mine footprint.
Mine wastes deposited on-land in so-called tailings dams, impoundments or waste-dumps have several associated environmental issues that need to be addressed (e.g., acid mine drainage formation due.
Surface paste disposal (SPD) technology has been investigated recently to solve the geotechnical (tailings dam failure) and geochemical (acid mine drainage formation) problems relating to tailings. ARD control using waste rock layering – Samatosum mine site, British Columbia, Canada Subaqueous Disposal of Tailings in a Waste Facility- Stekenjokk Mine Site Case Study Aitik mine, Sweden.
Figure 1. Tailings disposal using sand stacking As the deposited tailings will not be compacted, it will be important to monitor the drainage conditions in order to verify whether they are adequate enough to promote the formation of stiff and drained piles to limit saturation of the sand stacking body and to prevent undrained behavior.
This book provides an overview of paste tailings disposal at mine sites. It deals comprehensively with the characterization of sulphide-rich tailings, geotechnical and microstructural behaviour.
Mine wastes deposited on-land in so-called tailings dams, impoundments or waste-dumps have several associated environmental issues that need to be addressed (e.g., acid mine drainage formation due to sulphide oxidation, geotechnical stability, among others), and social concerns due to.
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Healey, P.M. and A.M. Robertson, A case history of an acid generation abatement program for an abandoned copper mine, Geotechnical aspects of tailings disposal and acid mine drainage, The Vancouver Geotechnical Society, Vancouver, B.C.
Dold, B. Evolution of Acid Mine Drainage formation in sulphidic mine tailings. Minerals4, – [Google Scholar] Vogt, C. International Assessment of Marine and Riverine Disposal of Mine Tailings.
In Proceedings of the 34th Meeting of the London Convention and the 7th Meeting of the London Protocol, London, UK, 1 November Waste rock and tailings (WR&T) mixtures have the potential to improve mine waste management via (i) decreasing the footprint for waste disposal, (ii) reducing potential for acid mine drainage.
Underground disposal of tailings as a cemented paste backfill is becoming the state-of-the-art in many mining operations. Paste tailings also constitute a promising solution for surface storage.
Due to the higher density and strength of paste tailings, their use reduces some of the risks linked with surface disposal of tailings. Underground backfill disposal can be an advantageous method for minimizing environmental impacts of mining, especially when mine waste materials are a potential source of acid mine drainage (AMD), when the mine site is located in an ecologically sensitive area, and when mine site topography makes surface disposal difficult.
The generation of acid mine drainage (AMD) remains a major environmental challenge for the mining industry. The reclamation of old mine sites with pre-oxidized tailings is particularly challenging because of indirect oxidation reactions which can limit the overall effectiveness of an oxygen barrier to prevent AMD.
Characterization of the Tailings. The basic geotechnical properties of the four tailings are summarized in Table 1, and Fig. 1 displays the grain size distributions. The specific gravity of the coarse and fine iron tailings are andrespectively, which are consistent with those of metal tailings but much higher than those of natural soils.
Mine Tailings - Geotechnical • Tailings • Disposal method Mine Tailings Fundamentals: Part 1 EPA CLU‐IN Webinar Mine Tailings – Geochemical • Mi iMining Ifl dInfluenced WtWater • Acid Drainage • Reduced pH • Elevated sulfates and metals • Neutral and Saline Drainage.
Acid mine drainage (AMD) remains a major environmental challenge for the mining industry. Alternative approaches, such as environmental desulphurization and co-disposal of waste rock and tailings, are also discussed. Recommended.
Cited By. Cited By Geotechnical Frontiers Waste Containment, Barriers, Remediation. Hard rock mines have significant effects on the territories where they operate, though both infrastructure construction as well as resource use. Due to their extractive activities, these mines store large quantities of wastes at the surface, which can be both physically and chemically unstable.
Reclamation aims to return a mine site to a satisfactory state, meaning that the site should not. Challenges posed by metal leaching and acid rock drainage, and approaches used to address them / W.A. Price --Geoenvironmental models of mineral deposits: examples from massive sulfide and gold deposits / R.R.
Seal II & J.M. Hammarstrom --Hydrologic and geochemical transport processes in mine waste rocks / L. Smith & R. Beckie --Oxidation and. At the end of the LOM tailings disposal strategy will change from slurry transport of the tailings and its disposal into tailings dams (TDs) constructed in mining voids, to trucking of the filtered tailings with the coarse rejects and co-disposal of the combined rejects in the mine voids (Figure 2).
The tailings. Book Description. Tailings and Mine Waste ’10 contains the contributions from the 14th annual Tailings and Mine Waste Conference, held by Colorado State University of Fort Collins, Colorado in conjunction with the University of Alberta and the University of British Columbia.
The purpose of this series of conferences is to provide a forum for discussion and establishment of dialogue among all. The tailings have been traditionally stored in tailings disposal facilities (e.g.
dams, ponds and other types of surface impoundments) located at the mine surface in a variety of different methods. However, the degradation and/or failure of the aforementioned tailings disposal facilities can result in serious environmental and geotechnical.
EPA and Hardrock Mining: A Source Book for Industry in the Northwest and Alaska Appendix F: Solid Waste Management F-3 January crushed prior to leaching or may be leached as run-of-mine. Improving the safety of mine waste impoundments / N.R.
Morgenstern --History and developments in the treatment of oil sands fine tailings / J.C. Sobkowicz --Tailings impoundment failures, black swans, incident avoidance, and checklists / J. Caldwell and L. Charlebois --New directions in tailings management / C.
Strachan and J. Caldwell. Barry A. Wills, James A. Finch FRSC, FCIM,in Wills' Mineral Processing Technology (Eighth Edition), Tailings Dams. The design, construction, and operation of tailings dams is a major consideration for most new mining projects, as well as for many existing operations (Vick, ).It is economically advantageous to site the impoundment close to the mine, but this imposes.
Proceeding of the Fourth International Conference on Acid Rock Drainage. May June 6, Vancouver, BC., Canada., III, Samad, M.A. & Yanful, E.K. A Design Approach for the Selecting the Optimum Water Cover Depth for Subaqueous Disposal of Sulfide Mine Tailings.
Canadian Geotechnical Jour • Risk analyses of tailings dam constructions. Dr A Penman • Stability and environmental aspects of tailings dams. Dr N R Morgenstern, Alberta Canada • Long term aspects on wet and dry covers of tailings dams. Dr S Vick, Denver USA • Coffee. the disposal of mine and mill wastes.
Purpose and Scope The purpose of this report is to respond to Work Task B, Part E in Contract EP, which assesses standards for the disposal of mine waste, including but not limited to: The potential for environmental problems resulting from acid mine drainage or other leachate from mine waste.
In a nutshell, acid mine drainage is a form of water pollution that happens when rain, runoff, or streams come in contact with rock that is rich in sulfur. As a result, the water becomes very acidic and damages downstream aquatic ecosystems.
In some regions, it is the most common form of stream and river pollution. Haile, J.P. and Kerr, T.F., “Design and Operational of the Myra Falls Tailings Disposal Facility”. Vancouver Geotechnical Society’s 4th Annual Symposium on Geotechnical Aspects of Tailings Disposal and Acid Mine Drainage.
Vancouver, B.C. Google Scholar. Get this from a library. Proceedings: Summitville Forum ' a forum held in conjunction with Tailings and Mine Waste '95, Colorado State University, Geotechnical Engineering Program, Department of Civil Engineering, Fort Collins, Colorado, USA.
[Harry H Posey; James Abercrombie Pendleton; Dirk J A Van Zyl; Colorado State University. Barton-Bridges, J., and Robertson, A.,«Geotechnical Considerations in the Control of Acid Mine Drainage,» Geotechnical Aspects of Tailings Disposal and Acid Mine Drainage.Catalyst lifetime represents one of the most crucial economic aspects in industrial catalytic processes, due to costly shutdowns, catalyst replacements, and proper disposal of spent materials.
Not surprisingly, there is considerable motivation to understand and treat catalyst deactivation, poisoning, and regeneration, which causes this research.Drainage and consolidation of mine tailings near waste rock inclusions With F. Saleh-Mbemba, M. Aubertin, G. Boudrias Disposal of hard rock mine tailings raises various issues related in part to the generation of excess pore water pressure, slow consolidation, and associated geotechnical risks for .