We value your feedback! Please complete the form below so that we can tailor our services to your specific needs.
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
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 …
WhatsApp: +86 18221755073
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.
WhatsApp: +86 18221755073
Compared with the post-treatment of pollutants, such as the removal of phosphate from wastewater, it is more important to develop effective emission control strategies to reduce phosphate pollution. Phosphogypsum (PG) is a typical solid waste byproduct of phosphate production and contains high amoun …
WhatsApp: +86 18221755073
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
The phosphate adsorption on the tailings tended to decrease with an increase of pH. A phosphate desorbability of approximately 13-14% was observed, and this low desorbability likely resulted from a strong bonding between the adsorbed PO(4)(3-)and iron oxides in the tailings.
WhatsApp: +86 18221755073
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 (PTE) contained in the tailings are somewhat unavailable. ... Soil Pollutants* / …
WhatsApp: +86 18221755073
The iron tailings can be a valuable secondary resource if properly used. Iron tailings contain a small amount of iron [21], which can be used as an iron-based catalyst to activate PMS for removing pollutants. It is not only beneficial to the value-increment utilization of iron tailings, but also beneficial to the practical application of ...
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
Efficient activation of peroxymonosulfate by iron-containing mesoporous silica catalysts derived from iron tailings for degradation of organic pollutants. 20220523 00:00:00
WhatsApp: +86 18221755073
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
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 ...
WhatsApp: +86 18221755073
In this Review, we provide an interdisciplinary approach to understanding the causes, effects and response to TSF failures, applying a disaster risk reduction framework. …
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
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
Herein, iron tailings were used to prepare iron-containing mesoporous silica (MFS) materials under a one-step hydrothermal route. The as-prepared MFS showed excellent photocatalytic degradation efficiency and stability over a wide pH range for five typical organic pollutants. Further degradation test using tap water and Xiangjiang River water ...
WhatsApp: +86 18221755073
Herein, iron tailings were used to prepare iron-containing mesoporous silica (MFS) materials under a one-step hydrothermal route. The as-prepared MFS showed excellent photocatalytic degradation efficiency and stability over a wide pH range for five typical organic pollutants.
WhatsApp: +86 18221755073
The use of iron tailings as the primary material used in developing and preparing porous materials is particularly appealing considering the enormous global stockpile of iron tailings, which continues to grow at a rate of 1.4 billion tons per year [19]. This approach could significantly reduce production costs.
WhatsApp: +86 18221755073
Three-dimensional observation of porous materials prepared from iron tailings and their pore wall site adsorption function. Author links open overlay panel Xinyu Wen a, Fei Huang a, Wenyuan Gao a, ... The adsorption capacity of the materials for phosphorus pollutants was evaluated, as was the contribution of crystalline sites to the adsorption ...
WhatsApp: +86 18221755073
A greenhouse trial to investigate the ameliorative properties of biosolids and plants on physicochemical conditions of iron ore tailings: Implications for an iron ore mine site …
WhatsApp: +86 18221755073
In addition to the common problems of low grade and fine particle size, iron tailings also have the characteristics of easy slime, which is because the iron distribution particle size in the tailings is finer, the gangue content is more, and the hardness is low, so it is easy to form slime after grinding [[9], [10], [11]].To address these challenges, conventional iron tailings are …
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
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
Composition analyses showed that the biosynthesized nanoparticles are formed by iron sulfate. Conversion ratio of the coal tailings into iron-containing nanoparticles reached 19%. The proposed biosynthesis process, using R. erythropolis ATCC 4277 free cells, seems to be a new and environmentally friendly alternative for sulfur minerals reuse.
WhatsApp: +86 18221755073
Herein, iron tailings were used to prepare iron-containing mesoporous silica (MFS) materials under a one-step hydrothermal route. The as-prepared MFS showed excellent photocatalytic degradation efficiency and stability over a wide pH range for five typical organic pollutants. Further degradation test using tap water and Xiangjiang River water ...
WhatsApp: +86 18221755073
China University of Geosciences, Wuhan; Fundamental Research Funds for the Central Universities; Fundamental Research Funds for the Central Universities
WhatsApp: +86 18221755073
What Is a Tailings Pond? A tailings pond is a specialized storage facility that contains waste materials, known as tailings, produced during mining operations. Tailings, often combined with water to form a slurry, are …
WhatsApp: +86 18221755073
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
The Fundão dam rupture was one of the largest environmental disasters worldwide and released millions of m 3 of iron ore tailings into the Doce River basin in southeastern Brazil. Here we assessed the supply of dissolved nutrients associated to tailings in the Doce River estuary and its adjacent coastal zone.
WhatsApp: +86 18221755073
This set of iron-containing mineral phases, here called the Iron Mineralogical Set (IMS), consists of the main phases of hematite and magnetite and the minority phases of goethite and greenalite and it is used as a marker of tailings. Mass ac magnetic susceptibility measures supported the concept of the IMS as a marker.
WhatsApp: +86 18221755073
