Mine tailing disposal sites: contamination problems
Mining practices and the absence of proper mine land reclamation has led to heavy metal contaminated sites with serious impact on the ecosystems and risk for human health. The origin of the contamination is often associated to mine tailing deposits because they are a source of the acid mine drainage (AMD). These areas are devoid of vegetation due to the …
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How to Properly Handle the Concentrate and Tailings of the …
Use tailings to build roads, manufacture non-slip materials, and reclaim land on the coast. Covering soil on the tailings dumping site to create land, planting crops, or planting trees for afforestation. Store the tailings piles in the tailings pond. This is the tailings treatment method currently widely used in most concentrators.
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Steel slag in China: Treatment, recycling, and management
Therefore, a reasonable steel slag treatment method is necessary to process it into a material that can be successfully used in a range of applications. Download: Download high-res image (68KB) ... most steel plants carry out only a preliminary treatment and offload the tailings to small operators, as mentioned in Section 4.1. Taking TISCO as ...
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SAMPLING METHODS FOR IMPOUNDED TAILINGS
Advances made in the treatment of ores and changing economic factors often permit the consideration of the re treatment of impounded tailings* The first considerations in determining the economic feasibility of such treatment are (a) the size of the impounded deposit, and (b) the con tained metal values* The experimental work described herein
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Quantification of abiotic reaction rates in mine tailings: …
Effective treatment techniques for eliminating iron-oxidizing (IOB) and sulfur-oxidizing bacteria (SOB) are required for the comparison of abiotic and microbial sulfide oxidation rates and mechanisms in mine tailings. This study evaluates the effect of autoclaving, repeated heating, ethanol treatmen …
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Mine Tailings Reprocessing Methods — Canadian …
By understanding the specific characteristics of your tailings, you can develop targeted strategies for reprocessing and tailings treatment. Key Insights for Decision-Making: Implement robust sampling procedures
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Recycling of Waste Iron Tailings by Biomineralization for …
Numerous waste iron tailings worldwide require eco-friendly treatment methods, with biotechnology being a promising option. However, bacteria survival in cemented paste backfill has been a persistent challenge. This study presents a method that adjusts the cementing solution composition (e.g. urea and calcium ions) to enhance Bacillus licheniformis biomass in …
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Mogale Tailings Retreatment: Study | Pan African Resources
The slurry will then be piped to a state-of-the-art automated treatment plant, which can process 800,000 tons of tailings material per month. This is a tried-and-tested, inexpensive, low-impact mining method. Hydraulic mining will be the primary method of extraction for the bulk of MTR tailings resources.
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A review on complex utilization of mine tailings: Recovery of …
One study by Mulenshi et al. [159] used a mechanochemical treatment method, referred to as leaching while grinding, to optimize tungsten recovery from tungsten tailings from the Smaltjärnen tailings storage facility in Yxsjöberg, Sweden. The leaching while grinding (LWG) process was demonstrated to be an effective approach for recovering ...
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Recent practices in mine tailings' recycling and reuse
However, many are the treatment methods that can be used to valorize, activate, and prepare mine tailings. Such treatment approaches can be generally classified as chemical, mechanical, and thermal while a combination of which is also possible. The aim of treatment(s) is to change the chemical, physical, and mineralogical state of mine tailings.
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The detoxification and utilization of cyanide tailings: A …
In the 19th century, cyanide leaching was proposed, and then it was widely used in gold processing due to its advantages of maturity, low-cost and high-leaching efficiency (Li et al., 2020).Around the world, about 90% of gold is recovered by this method (Acar, 2016; Tu et al., 2019), thereby resulting in the production of billions of tons of cyanide tailings (CTs) since 1950 …
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Mechanical activation for sulfidic tailings treatment by tailings …
Mine tailings typically consist of very small particles (2 µm–2 mm). The size of tailing particles affects their behavior, which makes the safe management of tailings difficult and requires careful construction, maintenance, and a large area for tailings disposal facilities [1], [2].Furthermore, Tailings can exhibit variations in composition and characteristics from one …
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Tailings Processing Plant & Equipment
Tailings Cyanide/ Heap leaching method. It involves using water or other solvents to dissolve target minerals to recover valuable metals or compounds. This is generally applicable to the treatment of tailings containing soluble metals, …
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Technical Report: Treatment of Cyanide Heap Leaches …
Treatment of Cyanide Heap Leaches and Tailings 1 TREATMENT OF CYANIDE HEAP LEACHES AND TAILINGS 1. INTRODUCTION The purpose of this report is to provide information on cyanide treatment methods for heap leaches and tailings activities associated with cyanidation operations, including disposal units that receive wastes from such operations.
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OVERVIEW OF CYANIDE TREATMENT METHODS
An integral and key component of many water management systems at mining sites is the approach adopted to manage cyanide-containing solutions and slurries. Excluding the bulk storage of cyanide reagents such as sodium cyanide, most cyanide present at mining sites will be present in water solutions. Therefore, to a great extent the management of water and the …
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Acid mine drainage: Prevention, treatment options, and …
Acid mine drainage (AMD) is a major problem all over the world, especially where coal and gold mine activities are common. Once AMD is generated, it is difficult to control the process and the treatment also requires high cost (Aguiar et al., 2016, Baruah and Khare, 2010, Grande et al., 2010, Qureshi et al., 2016).AMD causes severe environmental impacts, …
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Mechanisms for clay-polymer interactions in the treatment …
Enhancing solid-water separation is the key to water recovery and land reclamation from tailings, which is limited by the fine clay particles in MFT (Wang et al., 2024).Fig. 1 (b) shows a consolidated MFT cake after mechanical compression which mainly consists of clay particles. Solid particles with a size equal to or less than 44 μm are considered as fines (Alberta …
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Management method for closed tailings pond and flood …
The results of the study indicate that after the designed closed pond treatment method for the tailings pond is adopted, a 1000-year design flood would result in a flood elevation of 0.7 m, a minimum safety super-elevation of 2.0 m, and a minimum dry beach of approximately 130 m. These findings are in compliance with the relevant regulations ...
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Experimental analysis on cyanide removal of gold tailings
INCO method is more suitable for treating cyanide-containing wastewater with low thiocyanate content, when it is used for cyanide-containing tailings slag removal treatment, ferricyanide and ...
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Water Management Considerations for Conventional Storage
All these failures have occurred at facilities that store their tailings by conventional impoundment methods. The liquefaction phenomenon, internal and external erosion, seepage and overtopping are some of the main water induced failure modes of tailings facilities (ICOLD and UNEP 2001). ... collection and treatment of seepage. Control measures ...
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Tailings management and water stewardship in …
With estimated annual tailings production well exceeding 10 billion tonnes, a new paradigm is urgently needed to reduce tailings volume and maximise tailings water recovery. Technological innovation will be important in developing this …
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Strategies for Mine Tailings Treatment — Canadian Critical …
Sustainable strategies for mine tailings treatment are essential to ensure that mining operations are both effective and environmentally responsible. The Canadian Critical …
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Treatment method of nickel wet refining tailings based on …
The invention discloses a nickel wet refining tailings treatment method based on high-temperature oxygen pressure, which comprises the following steps: pre-dipping ore pulp, oxygen pressure leaching, deeply removing impurities and alkalifying and precipitating nickel and cobalt; the oxygen pressure leaching step specifically comprises: and (3) introducing the pre-leaching …
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An innovative method to degrade xanthate from flotation tailings …
Simultaneously, flotation tailings wastewater treatment has garnered widespread interest. Froth flotation, based on the different surface properties of minerals, has become the most common and effective beneficiation method for separating metallic sulphide minerals from gangue (Cheng et al., 2012; Shao et al., 2016).It has been reported that about 2 billion tons of …
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An extensive review on restoration technologies for mining tailings
These methods do not involve large-scale use of tailings, and the implementation process will have additional costs such as for transportation and treatment. Hence, it is urgent to search a suitable method to decrease the negative effect and restore a large quantity of abandoned mine tailings.
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Evaluation of pre-treatment methods for gold recovery …
In this research we investigated through gold recovery an analysis of the tailings mineralogy . and application of different pre-treatment methods. The aim was to unlock gold from the complex . mineralogy and formulate relationships between the prior treatment of the tailings and the gold . Affiliation: 1. Department of Process Engineering ...
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Experimental analysis on cyanide removal of gold tailings …
INCO method is more suitable for treating cyanide-containing wastewater with low thiocyanate content, when it is used for cyanide-containing tailings slag removal treatment, ferricyanide and thiocyanate cannot be completely removed, so that cyanide in tailings cannot be completely removed,and it is difficult to continue to reduce the content of ...
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Enhanced natural degradation of cyanide tailings: Integrated
Two treatment methods are designed to meet the different standard requirements for treating cyanide tailings. The use of advanced oxidation methods and low temperatures meets the standard for making building materials with cyanide tailings (leachate, CNt<0.5 mg/L), because it is difficult to meet the standard requirements with traditional ...
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Process effluents and mine tailings: sources, effects and
Mining tailings pose a high potential risk due to poor water management, failure of the tailings disposal method applied, dam failure and natural disasters. ... the sources and mechanisms of pollutant generation and their subsequent effect on environment and sustainable treatment methods are critical. This review includes information on ...
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Mechanical activation for sulfidic tailings treatment by …
By combining the carbonate and sulfide tailings, mechanical activation was employed as a method to manage the environmental impact of both types of mine tailings, with …
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