2 edition of Vegetative stabilization of highly oxidized tailings. found in the catalog.
Vegetative stabilization of highly oxidized tailings.
M. J. Hulley
Written in English
This article examines the revegetation of oxidized mine tailings. Conditions of the growth chamber are described, as well as the effects of limestone and mulch on the growth of grasses and legumes. Variables are taken into account.
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vegetative filter strips to reduce surface runoff phosphorus transport from mining sand tailings in the upper peace river basin of central florida by yi-ming kuo a dissertation presented to the graduate school of the university of florida in partial fulfillment of the requirements for the degree of doctor of philosophy university of florida Elsewhere, copper, lead, zinc gold and iron ore mine tailings have been used to produce cemented blocks (Jacobi, ; Struthers, ). More recent studies report reuse of hematite mine tailings (Chen et al., ) and copper mine tailings (Ahmari and Zhang ) in manufacture of construction Size: KB.
Tailings were found to be highly contaminated with several hazardous/priority hazardous metals (As, Cu, Cd, Pb), and pose potential contamination risk for soil, sediments, surface and groundwater. Two out of the seven studied impoundments does not satisfy the criteria required for inert wastes, shows acid rock drainage potential and thus can Cited by: There is an Open Access version for this licensed article that can be read free of charge and without license restrictions. The content of the Open Access version may differ from that of the licensed version.
Phytoremediation and revegetation of mine tailings and bio-ore production: progress report on plant growth in vegetative cover would stabilize the tailings and reduce oxidation and heavy metal release. A study was initiated in The wider range of pHs (4 to 5 in oxidized zones and to 7 in non-oxidized zones) at site 1 compared to. A site-specific study on stabilizing acid-generating mine tailings from Sudbury Mine using a coal fly ash from Nanticoke Generating Station is presented in this paper. The objective of the study is to evaluate the feasibility of codisposal of the fly ash and mine tailings to reduce environmental impacts of Sudbury tailings disposal sites.
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VEGETATIVE STABILIZATION OF MINERAL WASTE HEAPS (A SURVEY) TABLE OF CONTENTS Abstract ii List of Figures vii List of Tables viii Acknowledgments ix Sections Conclusions 1 State-of-the-Art 1 Regional Considerations 2 Recommendations 3 Mineral Waste Heaps as Sources of Hazardous Air Pollutants and Fugitive Dust Emissions 3 Using Solid Wastes as Waste Heap.
To evaluate the stabilization of available As in contaminated tailings from two abandoned metal mines of South Korea (the Myoungbong and Daduck Mines, and 56 mg/kg total As, respectively), characteristics of the tailings were investigated, and the tailings were treated through precipitation of amorphous iron compounds.
Steep decreasing trends of extractable (5% NaOCl) As Cited by: 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. Tailings containing toxic qualities of heavy metals are a potential source of pollution. Stabilisation by vegetative methods have been found the most effective. In an attempt to vegetate tailings dams it has been noted that while certain milky latex containing plants can be grown without any preconditioning of the soil, almost any plant can be grown after proper by: 1.
Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an gs are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed.
The extraction of minerals from ore can be done two ways: placer mining, which uses water. ), but the use of pre-oxidized tailings has not been documented yet to the authors’ knowledge. Valorization of pre-oxidized tailings could provide an alternative to usual cover materials that may not be readily available at mine sites, and reduce the reclamation costs and environmental impact of transporting materials to the mine site.
Stabilization of. Tailings Dam by De-Watering. Fourie. Department of Civil Engineering, University of Witwatersrand, platinum tailings, and made use of the ring-dyke method of tailings deposition.
In this technique of failure was highly unlikely Author: A. Fourie, G. McPhail. Coal Mine Tailings. In an attempt to rehabilitate an old coal mine tailings dam, (surface area of 23 ha and capacity of million cubic metres) a trial was set up to select the most suitable species for the rehabilitation of this site.
The substrate was saline, highly sodic. species a highly extensive revegetation plan was developed and implemented on site. INTRODUCTION A mine closure program was initiated to permanently close acres of copper tailings at the White Pine Mine (WPM) Tailings in the upper peninsula of Michigan.
The most important component of the closure plan in terms of cost and meeting water qualityFile Size: KB. OLYMPIC DAM EXPANSION PROJECT Tailings Storage Facility Design Report P 3 of CONTENTS 1 INTRODUCTION 7 Purpose 7 Scope 7 Responsibilities 7 2 EXECUTIVE SUMMARY 9 3 BACKGROUND 11 Design Approach 11 Design Standards 12 Environmental Impact Statement – Terms of Reference Key Accomplishments Recovery and isolation of overcubic yards of tailings containing mercury.
Demolition and disposal of retort, condenser, and appurtenant elements. Closure of various air shafts and adits. Stabilization of drainages to route surface water through the site.
Off-site disposal of hazardous tailings materials and Size: 1MB. oxidized paste samples is much lower than that in the unaltered paste or least altered equivalent, indicating that the yellow and the red specimen had become net acid-producing (Figure 2).
Table 2. Mine B tailings and oxidized pastes ABA. Mine B MB-tails MB-G MB-R Sample Filter cake Green paste Red paste Paste pH Fe. The stabilization of Pb, Zn and As in contaminated soils was evaluated using natural starfish (NSF) and calcined starfish (CSF) wastes at different application rates (0,and wt%).
tailings area. The successful stabilization of mine tailings with vegetation was the first step in developing new ecosystems. These systems were designed and developed to complement, as far as possible, the stage of development of the ecosystems in the surrounding area.
File Size: 5MB. physical stabilization technologies have been used, but are expensive and may not be permanent solutions. Phytostabilization, establishing a vegetative cap for the long-term stabilization and containment of tailings, is a promising remediation strategy that could reduce remediation costs as well as re-establish healthy, stable ecosystems.
Both tailings have high potential for AMD formation ( and wt.% of pyrite equivalent, respectively) with lesser amount of carbonates ( and wt.% of calcite equivalent) as neutralization potential (ABA= and tCaCO(3)/ t) and showed Cited by: The goal is to create a vegetative cap using native plants that will 1) prevent wind and water erosion of the tailings, 2) stabilize metal contaminants in the rooting zone, and 3) avoid shoot uptake of metal contaminants.
This seminar will provide a discussion of strategies to achieve successful establishment of native plants in mine tailings. A laboratory study on the stabilization of black cotton soil (BCS) with up to 8% lime admixed with up to 10% iron ore tailing (IOT) by dry weight of soil compacted with British Standard light, BSL energy (relative compaction – %) was carried out to establish the soil improving potential of the lime – IOT by: – Actively root into circum-neutral tailings – Minor rooting into moderately acid tailings, primarily limited to cover and upper one foot of tailings – Form dense root mat above cover/acid tailings contact – Affected by tailings permeability • Vegetative success generally greater in.
The amelioration of tailings, in accordance to the different rehabilitation methods, has changed the following chemical attributes for the cm layer significantly, pH, K, Mg, Ca, Al, CEC, and P.
Liming had the largest effect on the chemical attributes of the tailings as it caused an increase in pH, Ca, and Mg. A program to alleviate the condition by developing a vegetative cover over the tailings was commenced in The work was successfully carried out and demonstrated that the large area of waste could sustain a permanent cover of paper outlines the experimental work done at Buchans as well as the procedures followed and the.The mine tailings at the Iron King Mine and Humboldt Superfund site, which have not supported plant growth for decades, are typical of legacy sites: very acidic and highly contaminated with metals.
During the month field trial, UA SRP researchers successfully established a vegetative cover over the tailings with just a single application of.Primary vegetative growth on an old tailings dam, Zawar mines D. M. R. Sekhar, BTech, MSc Development Engineer, Central R&D Laboratory, HZL, UdaipurIndia and M.
R. Jakhu, BE, Chief Manager (OD), HZL, Zawar Mines, UdaipurIndia ABSTRACT Tailings containing toxic qualities of heavy metals are a potential source of pollution.