A short review on environmental impacts and application of iron …

Pollution of soils may be due to water discharge, seepage, runoff from IOT heaps, pits and mines directly to soils. Along with this, deposition of air blown matters from dry IOT …

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Are Iron Tailings Suitable for Constructing the Soil Profile

Iron tailings used as soil substitute materials to construct reclaimed farmland soil can effectively realize the large-scale resource utilization of iron tailings and reduce environmental risks. It is vital to understand the mechanisms affecting reclaimed soil quality and determine the appropriate pattern for reclamation with iron tailings.

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Effect of pore-forming agent on degradation of phenol by iron tailings

The reserves of iron tailings exceed 5 billion tones, ... This may be caused by the adsorption of pollutants onto the PCG sample by the benzene ring in the phenol molecule and the benzene ring in the PCG sample through π-π interaction [59]. Download: Download high-res image (702KB) Download: Download full-size image;

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Environment and Health Implications of Mine and Metallurgy

Mining activities, while impacting comparatively minor areas, generate tailings and waste rock deposits near mining zones, which stand as primary pollutants of soil and water [39, 46, 47]. Post the extraction of economically viable metal ores, the resulting mine spoils are often dumped in proximity to the mines, constituting a modern waste area ...

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Efficient activation of peroxymonosulfate by iron-containing …

DOI: 10.1016/j.cej.2022.137044 Corpus ID: 248900343; Efficient activation of peroxymonosulfate by iron-containing mesoporous silica catalysts derived from iron tailings for degradation of organic pollutants

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A critical review on metallurgical recovery of iron from iron ore tailings

Fig. 2 illustrates the iron ore beneficiation process, particularly magnetic separation, resulting in the generation of inevitable tailings. Due to the characteristics of iron ores and the conditions during beneficiation, it is inevitable that approximately 2.5–3 tons of IOTs are generated for every 1 ton of iron ore concentrate produced [7].In 2019, the global annual …

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Environmental pollution and human health risk due to tailings …

Tailings are residual materials generated during the process of mineral extraction, consisting of finely ground rock particles that are mixed with processing water and chemicals used in the extraction process (Vick, 1990; Lottermoser, 2007; Kossoff et al., 2014).In conventional practice, these non-economic by-product mixtures are discharged behind dams (Hudson …

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Potential risk, leaching behavior and mechanism of heavy metals …

Studies have suggested that weathering of mine tailings could result in the depletion of sulfide minerals and neutralization of carbonate minerals, together with the formation of secondary minerals (e.g., clay minerals and iron/aluminum oxyhydroxides) (Charuseiam et al., 2022; Yi et al., 2021), which was in accordance with the XRD spectra.

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Iron Ore Tailings: Characterization and Applications

tailings). Iron ore with high clay content, for example, tends . to generate ne particles. 33. ... to adsorb the most different types of pollutants, whether . organic or inorganic.

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A new approach for recovering iron from iron ore tailings using

In recent years, with the rapid development of the iron and steel industry, the amount of industrial waste gases, wastewater, and waste residues has increased every year [[1], [2], [3], [4]].Among these, the amount of iron ore tailings discharged from concentrators is enormous, and more than 10 billion tons of iron ore tailings and barren rock are discharged …

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Evaluation and analysis of soil migration and distribution

As an important subsystem, soil is usually considered as main stack area of various pollutants (Chibuike and Obiora, 2014). Polluted soil by heavy metals not only impairs physical and chemical properties, but also affects the soil organisms. ... Fabrication of glass from iron tailings. Materials Letters, Volume 185, 2016, pp. 511-513.

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Optimization of Ultra-High-Performance Concrete Using a Clinker …

This study investigates the use of iron mine tailings (ITs) as a fine aggregate and a clinker-free binder composed of ground granulated blast-furnace slag (GBFS), desulfurization gypsum (DG), and basic oxygen furnace slag (BOFS) to produce low-cost ultra-high-performance concrete (UHPC). The research optimizes the UHPC base by evaluating the impact of key …

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Highly active Fenton-like catalyst derived from solid waste-iron …

The pollutants degradation rate of iron ore tailings–based heterogeneous catalysts is the main factor limiting its application. Herein, an iron ore tailings–based Fenton-like catalyst (I/W(3:1)-900-60) with a relatively fast catalysis rate was constructed by co-pyrolysis (900°C, 60 min holding time) of iron ore tailings and wheat straw with a mass ratio of 3:1. With wheat …

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Highly Active Fenton-Like Catalyst Derived from Solid …

The pollutants degradation rate of iron ore tailings-based heterogeneous catalysts is the main factor limiting its application. Herein, an iron ore tailings-based Fenton-like catalyst(I/W(3:1)-900 ...

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Basic characteristics and environmental impact of iron …

Iron ore tailings (IOTs) are the indusus solid waste discharged by concentrating mills after processing iron ores and selecting "valuable components" (Yao et al., 2020). In China, 600 million tons of IOTs are …

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Recycling of iron ore tailings into magnetic nanoparticles and

Iron ore tailing is a major solid waste requiring advanced recycling methods because ore tailing powder is polluting air and water resources. For instance, about 300 million tons of tailings are disposed yearly in 1229 iron ore tailings dams in the Hebei province in China. Iron ore tailings can be recycled as functional materials because these tailings are similar to natural silicate …

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Electrospun membranes of iron tailings toward peroxymonosulfate

The EF-iron tailings membranes were in good agreement with the characteristic peaks of iron tailings samples in the XRD patterns (Fig. S3a), and the peaks from 400 to 1250 cm −1 which are the characteristic vibrations of iron tailings were observed in the FT-IR spectra of the EF-iron tailings membranes (Fig. S3b), which indicating that iron ...

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A spatial evaluation of historic iron mining impacts on current

We map historic sites and quantities of iron mining, ore processing, water use, and tailings deposition within subwatershed boundaries. We then map the locations of impaired lakes …

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Iron ore tailings as efficient Fenton-like catalysts for degradation …

Iron ore tailings (IOT) is the residual product after iron ore is processed and refined, which is one of the largest industrial solid wastes emitted in China. The stockpiles of IOT in Hebei Province alone have amounted to 5.977 billion tons. They are urgent to be efficiently utilized.

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Mountain Iron | Minntac Taconite

The most recent permitting effort for the Minntac tailings basin focused on specific steps to reduce the pollutant levels of the water within the tailings basin, resulting in a reduced concentration of pollutants in the seepage …

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Iron ore tailings as efficient Fenton-like catalysts for degradation …

Since it removes organic pollutants most thoroughly, AOPs get the most attention. The Fenton process, which belongs to AOPs, was the simplest one and has the advantage of fast degradation rate [27]. ... Iron ore tailings (IOT) is the residual product after iron ore is processed and refined, which is one of the largest industrial solid wastes ...

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Pollutants' migration and transformation behavior in phosphorus …

Pollutants' migration and transformation behavior in phosphorus ore flotation tailings treated with different additives ... aluminum oxalate, iron oxalate, and organic matter, and is strongly connected to soil parent materials ... Phosphorus ore flotation tailings (PTs) and NG was obtained from phosphate chemical enterprise in Kunming, China ...

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A review on complex utilization of mine tailings: Recovery of rare

The characteristics of MTs in terms of the level of contamination and the amounts of pollutants largely depend on the type of processed ore and mining processes used. Tailings often still contain some sulfide minerals after processing, which is a potential environmental hazard. ... [24], iron tailings (0.015–0.08 wt%) [78], lead-zinc tailings ...

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Co-utilization of iron ore tailings and coal fly ash for porous

Semantic Scholar extracted view of "Co-utilization of iron ore tailings and coal fly ash for porous ceramsite preparation: Optimization, mechanism, and assessment." ... Effects of flue gas pollutants and production quality indexes. Hexi Zhao Xiangyang Xu Junzhe Zhang Weiming Huang Lixin Qian Hongming Long. Environmental Science, Chemistry.

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Optimizing iron separation and recycling from iron tailings: A

Iron tailings, generated from the beneficiation and metallurgy of iron ore, are hazardous wastes that pose significant environmental challenges due to their large-scale disordered storage, resulting in widespread damage and safety concerns [1], [2].The annual worldwide deposition of over 10 billion tons of iron tailings in tailings dams has made it …

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Basic characteristics and environmental impact of iron ore tailings

Iron ore tailings (IOTs) are the indusus solid waste discharged by concentrating mills after processing iron ores and selecting "valuable components" (Yao et al., 2020). In …

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Iron mining tailing toxicity is increased by lower pH

Solid iron mining tailings are some of the most relevant pollutants because dam failures release huge amounts of such materials into the environment. These pollutants …

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Preparation of iron tailings-based porous ceramsite and its …

Iron tailings are abundant and predominantly comprise SiO 2 and Al 2 O 3, rendering them suitable for the structural frameworks of ... (K L) of ceramsite for phosphorus pollutants increased from 0.1436 to 0.2005 L/mg, while the maximum theoretical saturated adsorption capacity rose from 44.444 to 46.729 mg/g. Compared to the adsorbents ...

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Remediation of Iron Ore Tailings From Brumadinho (Brazil), …

In this sense, two kinds of bricks were produced, one of them combining iron ore tailings and polyester fabric wastes, and the other, combining iron ore tailings and PET plastic wastes. Both the bricks were evaluated for the construction of social housing. The results show that these bricks are similar to soil-cement bricks, with which ...

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Enhanced photocatalyst with TiO2-anchored iron tailings …

Enhanced photocatalyst with TiO 2-anchored iron tailings structure for highly efficient degradation of doxycycline hydrochloride. Author links ... Large-scale livestock and poultry farms discharge a large amount of wastewater containing various types of pollutants, such as antibiotic resistance genes, pathogens, and heavy metals, which has ...

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