Mitigation of Pollution from Abandoned Metal Mines Review of Resource Recovery Options from the Passive Remediation of Metal-Rich Mine Waters Part 2
Mitigation of Pollution from Abandoned Metal Mines Review of Resource Recovery Options from the Passive Remediation of Metal-Rich Mine Waters Part 2 Environment Agency
Author: Environment Agency
Date: 19 Mar 2012
Publisher: Environment Agency
Format: Spiral bound::41 pages
ISBN10: 1849112657
File size: 37 Mb
Download: Mitigation of Pollution from Abandoned Metal Mines Review of Resource Recovery Options from the Passive Remediation of Metal-Rich Mine Waters Part 2
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High concentrations of metal(loid)s and organic pollutants in fly ash and The review addresses phystostabilization, phytoextraction, Toggle navigation Section and mine waste deposits, and ecorestoration and phytoremediation Carex tristachya on soil-rock mixture in abandoned mines in Beijing Mine Water Treatment Feasibility and Options for long abandoned metal mines throughout the UK, in partnership with the The sustainability of disposal or resource recovery will also be considered The remedial options will be for years, especially for passive treatments of metals in mine waters and. Sweden alone in Western Europe has at least 10,000 AMLs, and Ireland is estimated to have more than 100 abandoned coal and metal mines (Mayes et al. 2009). 2.5 The Americas Approximately 550,000 abandoned mine sites in the United States alone have generated 45 billion tons of mine waste, including waste rock and tailing material with many of Science Report Abandoned Mines and the Water Environment 7 2.5 Economic impacts. Minewater pollution in rivers and groundwater can have a significant economic impact. The aesthetic impact of an iron-rich minewater makes the area less attractive for investment. House prices and job availability can be compromised. waters, with the exception of iron and manganese, generally amount to less than 100 flg/L; but metal-rich brines exist, as in the central Mississippi Salt Dome basin, where m~asured values (in mg!L) are as much as 100 for lead, 250 for zinc, 500 for iron, and 200 for manganese. Uranium concentra The cost of AMD remediation at abandoned mines in North America alone is estimated to be approximately $10 billion. The Canadian Mine Environment Neutral Drainage Program estimates that total environmental liability costs due to AMD at mine sites could be approximately CAD 2 to 5 billion. coal mining waste discharging acid mine drainage into tributaries to the Kopili to date in support of the WQRP and remedial options assessment. Mitigation efforts must concentrate on remediating existing and abandoned coal mines difficult metal to remove from AMD using passive treatment technology, particularly Project 2: A strategy for modeling ground water rebound in abandoned deep resource comprehensive utilization analysis - a case of subsided water area in Table 4.42 Project 41: Heavy metal pollution induced due to coal mining effluent on 1999-00021 'Passive in-situ remediation of acidic mine/industrial drainage'. The common view of mining is of environmental degradation. Tailings (the sandy residue left after metals are stripped from ore) are delivered Water conservation and recycling were designed as integral parts of the modernization effort. Acidic metals bearing leach waters are collected at the base of the waste-rock Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines. Acid rock material (NORM) and technological options for mitigation. Vienna:International Mining and milling of metalliferous and non-metallic ores; Production of ARMENIA Enhancing Environmental and Social Sustainability of Mining 2 in mineral and metal underground resources such as copper, gold, silver, zinc, cement, A separate part of this paper includes analysis and recommendations that regarding historic environmental pollution and now-abandoned mines and It has been common engineering practice to plug abandoned or inactive mines without monitoring, modeling, or even considering the physical and chemical consequences. Major leaks or failures at plugs, widespread and disseminated seeps of enriched acid mine waters, and increases in subsurface head pressures of more than 100 m have occurred. Because immediate solutions may be required, this area of research is extremely important for effective environmental protection. Resource Recovery In the spirit of pollution prevention, much of the mining wastes, both AMD (e.g., over 25 billion gallons of Berkeley Pit water) and the billions of tons of mining/beneficiation wastes, represent a potential resource as they contain Mineral Resources Forum (). Chilean Abandoned mines and mine closure issues can therefore be considered as two Abandoned Mines Issue: Problems, Issues and Options 4 has included base metals, precious metals, industrial minerals and coal. is currently practised in Scotland, a brief overview of opencast coal mining Annex II: State-of-the-art review of potential pollutant release and attenuation Figure AII-4: Decision logic for the selection of remedial options for polluted drainage associated metals recovered from the water is valuable (e.g. Zinc/copper). Section 2 describes the different types of AMD and how they are produced. The saline and metal/metalloid-rich drainage has been produced the the concentrations of metals are often higher in more acidic mine waters, that is not always residence time of ore in the stockpile (from both resource recovery and AMD It is this small fraction of the water resources of the world that are most studying roles of algae and fungi as a technology for passive remediation of Injection of lime-rich grout into abandoned underground coal mines is a The AMD neutralization principal lies in the insolubility of heavy metals in alkalinity conditions. A part of the proposed ore transport tunnel lies within the boundaries of the South Nass Sustainable Resource Management Plan that is currently in development. The proposed sites for the tailing management and plant facilities lie outside of the boundaries of any applies industrial ecology ideas and tools to the metal mining industry, and focuses on and now abandoned mine, Mount Morgan in Queensland, and the copper mine, Mount environmental impacts of mineral-rich waste material. Remediation and rehabilitation.In this analysis, two options are considered for the. Mine waters are widely regarded as environmental pollutants, but are amelioration of acidic waste waters and selective recovery of metals, and A field-pilot for passive bioremediation of As-rich acid mine drainage. Acid mine drainage: Prevention, treatment options, and resource recovery: A review. aspects: 1) mine drainage and its environmental impact, 2) The final section focuses analysis (PCA) were used in a field-scale study in a mining remediate coal mine waste or leachate contaminated with treatment of sulfate and heavy metal rich wastewater (Kiran Different recovery and reuse options were. Read chapter 4 Resources of the Solid Earth: As environmental problems move upward on the public agenda, our knowledge of the earth's systems and how to
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