0086-21-58386256

Modification of iron-containing silicate tailings with oxalic acid to

The biotite loaded with nano FeC 2 O 4 (CFS90) was prepared directly from rubidium tailings with oxalic acid (OA) modification, which takes biotite as a matrix and is equipped with FeC 2 O 4 nanosphere. Compared with raw iron-containing silicate tailings (ICSTs) and pure FeC 2 O 4, the degradation efficiency of Cr(III)-EDTA

WhatsApp: +86 18221755073

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.

WhatsApp: +86 18221755073

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 …

WhatsApp: +86 18221755073

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.

WhatsApp: +86 18221755073

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.

WhatsApp: +86 18221755073

Lamellar mesoporous Mg-containing silicate adsorbents derived from iron

Lamellar mesoporous Mg-containing silicate adsorbents derived from iron ore tailings for high-efficient adsorption of mycotoxins and antibiotics. Author links open overlay panel Guangyan Tian a b c, Xue Hua a b c ... Among the organic pollutants, new appearing ones, including antibiotics and mycotoxins, are getting more and more attention in ...

WhatsApp: +86 18221755073

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 …

WhatsApp: +86 18221755073

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.

WhatsApp: +86 18221755073

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 ...

WhatsApp: +86 18221755073

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 ...

WhatsApp: +86 18221755073

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 ...

WhatsApp: +86 18221755073

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 ...

WhatsApp: +86 18221755073

Electrospun membranes of iron tailings toward peroxymonosulfate

Request PDF | Electrospun membranes of iron tailings toward peroxymonosulfate activation for efficient photocatalytic degradation of organic pollutants | Iron-based catalysts are considered to be ...

WhatsApp: +86 18221755073

Efficient activation of peroxymonosulfate by iron-containing …

Iron tailings, a kind of industrial solid waste produced by the iron and steel industry, is a fine grained mixed metal composite material composed of Fe 2 O 3, Al 2 O 3, SiO 2, CaO, MgO, etc. [18].

WhatsApp: +86 18221755073

Tailings particle size effects on pollution and ecological …

In this study, an iron tailings reservoir was sampled along a particle flow path to compare the pollution characteristic and microbial communities across regions with different particle sizes. The results revealed a gradual reduction in tailings particle size along the flow …

WhatsApp: +86 18221755073

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 …

WhatsApp: +86 18221755073

Review on the Impact of Iron Tailings on the Environment and Its

Iron tailings are solid waste generated after the mining of iron mines, which have caused serious damage to the surrounding ecology and environment and have attracted widespread attention ...

WhatsApp: +86 18221755073

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.

WhatsApp: +86 18221755073

Review on the Impact of Iron Tailings on the Environment and Its

Research shows that iron tailings containing heavy metals can widely pollute the environment through dissolution and migration, and have significant biological toxicity effects.

WhatsApp: +86 18221755073

Preparation of particle electrodes for landfill leachate treatment by

Based on this, we propose to use the spheres prepared from needle coke loaded with iron and copper bimetals as particle electrodes for 3DEF. Iron tailings are the waste remaining after the separation of iron ore mining, mainly composed of Si, Ca, Fe, Al, Mg elements, which can be developed and utilized as secondary resources [38], [39], [40].

WhatsApp: +86 18221755073

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

WhatsApp: +86 18221755073

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 …

WhatsApp: +86 18221755073

Environmental pollution and human health risk due to tailings …

The findings reveal that (i) Cd, Pb, and Hg are the prominent pollutants across the non-failed TSF sites in China; (ii) lead‑zinc and tungsten mine tailings storage sites exhibit the …

WhatsApp: +86 18221755073

Potentially toxic elements in iron mine tailings: Effects of

Tailings from iron mining are characterized by high concentrations of iron and manganese oxides, as well as high pH values. With these characteristics, most of the potentially toxic elements …

WhatsApp: +86 18221755073

Investigation of the efficacy of graphite-sulfur iron tailing …

Sulfur iron tailings also consist of ferrous iron in a structural form along with other low-valence sulfide species that are reductive (Carvalho et al. 2023), but a large number of piled tailings cannot be used, resulting in a series of environmental problems (Zhang et al. 2024b)pared with the raw ore, the sulfur iron tailings have a price advantage.

WhatsApp: +86 18221755073

A spatial evaluation of historic iron mining impacts on current

Pollutant discharge from mine wastes highlights the complex physical character these pollutants possess as they move from ground-based to water or airborne contaminants. The latter types, ... Within the Lake Superior basin, the most notorious case involving water pollution from iron tailings was the Reserve Mining Company case. In 1947, the ...

WhatsApp: +86 18221755073

Basic characteristics and environmental impact of iron …

Iron ore tailings (IOTs) are the industrious 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 …

WhatsApp: +86 18221755073

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 …

WhatsApp: +86 18221755073

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 ...

WhatsApp: +86 18221755073

A short review on environmental impacts and application of iron …

An evaluation of iron ore tailings characteristics and iron ore tailings concrete properties Construction and Building Materials, 286 ( 2021 ), Article 122968 View PDF View article View in Scopus Google Scholar

WhatsApp: +86 18221755073

Solutions