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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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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Solidification treatment of rare earth tailings by a renewable

Rare earth mineral is a kind of polymetallic co-associated mineral, in addition to containing iron, rare earth, niobium, and a certain amount of thorium and uranium.The tailings after wet leaching of rare earth are both a kind of hazardous waste and a kind of potential strategic resource. Therefore, the treatment and disposal of rare earth tailings should not only …

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Synergistic recovery of Pr, Eu, and Ce from gold mine tailings …

For low-grade ore and mining tailings, these processes require high costs and lead to severe air, water, and soil pollution, prompting a reconsideration of traditional methods 12.

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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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Iron ore – tailored solutions

The selection of a suitable dewatering method depends on various factors, including moisture content, particle size distribution, and downstream process requirements. Discover our business. Separation. ... as well as for economical tailings treatment. Concentrate dewatering: higher throughput, lower costs ...

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Strategies for Mine Tailings Treatment — Canadian Critical …

This involves understanding the physical and chemical properties of tailings to determine the most effective handling and disposal methods. For detailed insights, see mine tailings treatment. CCMR also employs a best-fit technology selection process, particularly important for dewatering techniques.

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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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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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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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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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Mine Tailings: Management, Treatment & Environmental …

Learn about mine tailings, their environmental dangers, storage methods, treatment solutions.

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Treatment And Utilization Of Gold Mine Tailings

To sum up, tailings pollution occupies land, damages landscapes, destroys soil, harms organisms, silts rivers, and pollutes the atmosphere. Methods to Control Tailings Pollution. The three most feasible approaches to tailings management and utilization are: One is to cover the soil to create fields.

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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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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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Properties, Treatment and Resource Utilization of Bauxite Tailings…

A substantial amount of bauxite tailings (BTs) at abandoned mine sites have been stored in waste reservoirs for long periods, leading to significant land occupation and environmental degradation. Although many studies of the resource utilization of BTs were conducted to address this challenge, there is still a lack of efforts to systematically review 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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Comparative experimental study on the harmless treatment …

In summary, harmless treatment significantly affects the treatment of cyanide tailings, but some problems have yet to be solved during treatment process to achieve industrialization. Harmless treatment processes mainly include two types: the direct oxidation of slurry and the oxidation of cyanide-containing wastewater after slag washing.

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Tailings Retreatment: The Next Revenue Source for the Mining Industry

Tailings, or the material remaining after a valuable component has been separated from the gangue, have long plagued the mining industry with management costs, liability risks, and disposal challenges. ... As such, tailings composition differs based on the target material and the method of processing. However, despite this diversity, most ...

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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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Extraction of lithium and aluminium from bauxite mine tailings …

Bauxite mine tailings can be used as the reserve resources of aluminium and lithium. In this study, a less energy consumption treatment method for extracting aluminium and lithium from bauxite mine tailings has been proposed, which used mixed acid to leach aluminium and lithium from tailings directly, avoided roasting for reducing energy consumption, and …

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Mine Tailings: Management, Treatment

Mine Tailings Water Treatment The composition of tailing water can vary significantly depending on the ore being mined and the processing methods used. Here's a breakdown of some key contaminants and their …

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Efficient and durable uranium extraction from uranium mine tailings

Here we show that the photoelectrochemical (PEC) method could effectively resolve the aforementioned drawbacks of PC methods. By applying a bias potential on the photocatalyst (Figure 1 B), the PEC method enables much faster U extraction with exceptional stability, compared with the PC method operating under identical conditions.In real seepage …

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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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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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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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Mine Tailings Reprocessing Methods — Canadian Critical …

Characterizing the materials meticulously guides the selection of suitable reprocessing techniques and equipment. For more insights into handling and managing tailings, explore our articles on tailings management and mine tailings treatment.. Understanding the nuances of sampling and characterization equips you with the knowledge to optimize your …

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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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