Environmental desulfurization of mine wastes using various mineral processing techniques: Recent advances and opportunities

Ait-khouia, Yassine; Benzaazoua, Mostafa; Demers, Isabelle

doi:10.1016/j.mineng.2021.107225

Cited by 39 publications

(8 citation statements)

References 74 publications

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“…The development of mineral resources has brought great convenience to human life and caused severe environmental problems, such as groundwater pollution, air pollution, occupying farmland and solid waste (SWs) storage [1][2][3]. Among them, the environmental pollution caused by solid waste (SW) storage is severe.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Macro Mechanical Properties and Microstructures of Cement-Based Composites Prepared from Fly Ash, Gypsum and Steel Slag

Cao

Yılmaz

2021

Minerals

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Using solid wastes (SWs) as backfilling material to fill underground mined-out areas (UMOAs) solved the environmental problems caused by SWs and reduced the backfilling cost. In this study, fly ash (FA), gypsum and steel slag (SS) were used to prepare cement-based composites (CBC). The uniaxial compression, computed tomography (CT) and scanning electron microscope (SEM) laboratory experiments were conducted to explore the macro and micromechanical properties of CBC. The findings showed that the uniaxial compressive strength (UCS) of CBC with a curing time of 7 d could reach 6.54 MPa. The increase of SS content reduced the UCS of CBC, while the gypsum and FA content could increase the UCS of CBC. Microscopic studies have shown that the SS particles in CBC have noticeable sedimentation, and the increase of SS content causes the failure mode of CBC from tensile to tensile-shear. These research results can provide a scientific reference for the preparation of backfilling materials.

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Section: Introductionmentioning

confidence: 99%

Characterization of Macro Mechanical Properties and Microstructures of Cement-Based Composites Prepared from Fly Ash, Gypsum and Steel Slag

Cao

Yılmaz

2021

Minerals

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“…Varied air tables or jigs are commonly used for technical mineral separation in many intermediate minerals processing [18] [20,21,22,23]. Whitworth et al [21] and Khouia et al [23] studied various minerals processing (size screening, gravity route, electric and magnetic separation, desulfurization) from mining waste to obtain mineral and metal recovery. Shaking table separation is based on differential mineral density.…”

Section: Methodsmentioning

confidence: 99%

Induced roll magnetic separator applied for high grade ilmenite separation from mining tailing

Dahani

Sundari

Somali

et al. 2023

Sinergi

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This article aimed to separate ilmenite (FeTiO3) mineral from tin tailing applying a single splitter IRMS (Induced Roll Magnetic Separator). Ilmenite mineral is the substantial main source for TiO2. This work used air table middling for feeding. The mineral components of middling feeding from air table using grain counting analysis were found as follows: cassiterite (48.61%), ilmenite (21.36%), monazite (18.56%), pyrite (4.60%), zircon (5.85%), quartz (0.71%), anatase (0.27%), and tourmaline (0.02%), It was found that electrical current and opening of single splitter affected the degree of separation addressing to ilmenite recovery and ilmenite grade. The finding showed that current of 15 Ampere and single splitter with opening 4.25 cm yielded ilmenite recovery more than 74%. The high grade ilmenite (90.46 %) and recovery of 29.38% was obtained using 5 Ampere with single splitter opening of 1.0 cm. Up to date, the study on ilmenite separation from tailing only focused on the effect of current, however, the effect of single splitter magnetic separator to enhance ilmenite recovery from other paramagnetic minerals such as monazite, siderite, xenotime and tourmaline has not yet been reported.

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“…This slurry is transported from the processing plant to tailings storage facilities (TSFs) or tailings dams, where it is deposited and allowed to settle. Over time, the water in the slurry separates and is often recycled back into the mining process, while the solid tailings remain stored in the facility [1,59,63,64].…”

Section: Mine Tailings Production: Overview and Industry Trendsmentioning

confidence: 99%

Towards a Circular Economy in the Mining Industry: Possible Solutions for Water Recovery through Advanced Mineral Tailings Dewatering

Hamraoui,

Bergani,

Ettoumi

et al. 2024

Minerals

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The mining industry is confronted with substantial challenges in achieving environmental sustainability, particularly regarding water usage, waste management, and dam safety. The increasing global demand for minerals has led to increased mining activities, resulting in significant environmental consequences. By 2025, an estimated 19 billion tons of solid tailings are projected to accumulate worldwide, exacerbating concerns over their management. Tailings storage facilities represent the largest water sinks within mining operations. The mismanagement of water content in tailings can compromise their stability, leading to potential dam failures and environmental catastrophes. In response to these pressing challenges, the mining industry is increasingly turning to innovative solutions such as tailings dewatering and water reuse/recycling strategies to promote sustainable development. This review paper aims to (I) redefine the role of mine tailings and explore their physical, chemical, and mineralogical characteristics; (II) discuss environmental concerns associated with conventional disposal methods; (III) explore recent advancements in dewatering techniques, assessing their potential for water recovery, technical and economic constraints, and sustainability considerations; (IV) and present challenges encountered in water treatment and recycling within the mining industry, highlighting areas for future research and potential obstacles in maximizing the value of mine tailings while minimizing their environmental impact.

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Environmental desulfurization of mine wastes using various mineral processing techniques: Recent advances and opportunities

Cited by 39 publications

References 74 publications

Characterization of Macro Mechanical Properties and Microstructures of Cement-Based Composites Prepared from Fly Ash, Gypsum and Steel Slag

Characterization of Macro Mechanical Properties and Microstructures of Cement-Based Composites Prepared from Fly Ash, Gypsum and Steel Slag

Induced roll magnetic separator applied for high grade ilmenite separation from mining tailing

Towards a Circular Economy in the Mining Industry: Possible Solutions for Water Recovery through Advanced Mineral Tailings Dewatering

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