Lottermoser (2011) adapts the terms 're-use' and 'recycle' to mining waste. re-use is defined as making use of the total mine waste without any prior reprocessing, whereas recycling involves a reprocessing stage which aims at either extracting 'new valuable resource ingredients', or making the entire mine waste usable for a new ...
Nickel laterite mining is one of the sources of nickel-iron material used for producing steel and various materials. This mining activity leaves waste in the mine, including rocks, overburden ...
The important issues on disposal of solid wastes from metal mines are to choose the right varieties for the comprehensive utilization of mining waste and to control contamination from waste rocks and tailings.
The green mining of metal ores refers to mining technology that employs solution mining (copper sulfide heap leaching, rare earth in situ leaching, uranium in situ leaching, etc.), cemented/paste backfilling and other processing technologies …
for recycling mine waste; most notably: recovery of valuable mine rals and metals, pro- duction of cost - e ffective b uilding ma terials, a nd preparat ion of soil mod ifiers an d agricul- tural ...
Effective waste management in mining is indispensable for ensuring the long-term stability of waste disposal facilities. Сomposition of mining waste varies from location to …
5. Introduction Mining Waste Mining operation brings out all sorts of unwanted materials, which is known as mining waste. Mining waste can be defined as a part of the materials that result from exploration, mining and processing of substance governed by legislation on mines and quarries. Mining operation also produce diverse kind of potentially hazardous waste.
Mining-selected waste (or simply mining waste) can be defined as a part of materials that result from the exploration, mining and concentration of substances governed by legislation on mines and quarries Identification of the environmental risks associated with such waste requires the
Learn about different types of mine waste and how it is stored and handled after the mining operation has completed. It's no secret that mining can produce a lot of waste. This is evident by catching a glimpse of any mining operation and …
Wastes from a local iron and steel factory are the subject of this study. The manufacturing operations in the plant under consideration are agglomeration of iron ore and sintering, pig iron …
The actual volume of mine waste in need of disposal in dumps and tailings storage facilities, worldwide, is difficult to assess. In 1996 the International Commission on Large Dams (ICOLD) [1] estimated that this "almost certainly" exceeds 5 × 10 9 t year − 1 (5 billion tonnes per year). Considering that some valuable commodities occur in their ores in concentrations of …
deposits are very deep, and in open-pit mines when the deposits are relatively shallow.i Once the metals have been separated from other rock, the mining operator must find ways to dispose of the substantial waste rock. Sulfide mining is different from traditional iron ore mines and taconite mining (sometimes referred to as ferrous mining).
Increased mining activity of iron ore has led to the generation of voluminous wastes of various nature, especially during the different stages of its extraction and production. The improper disposal of such waste causes negative impact on the environment. One such waste which is generated during the beneficiation process of iron ore is waste iron ore tailings, which …
Optimization of Disposal Areas by Studying of the Mining Rock Waste Granulometry of an Iron Mine. In: Zhan, L., Chen, Y., Bouazza, A. (eds) Proceedings of the 8th International Congress on Environmental Geotechnics Volume 3.
The NEMO (Near-zero-waste recycling of low-grade sulphidic mining waste) Project, funded by the EU's Horizon 2020 program, developed and demonstrated technologies for near-zero-waste treatment of sulfidic mining waste. They reached their target on three mine sites, reducing the volume of waste by more than 95% and extract critical minerals.
Since the current waste management in the mining industry is very often far from being sustainable, this paper includes an overview of waste management practices that are …
The mining industry generates a substantial amount of waste materials, including tailings and waste rocks, which, if not managed correctly, pose threats to the environment and public health due to their long-term accumulation and disposal. Simultaneously, the construction sector consumes important amounts of natural resources like water and rocks. However, …
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 …
In recent decades, the global mining sector has expanded rabidly in response to the rising need for metals and minerals. The mining industry plays a critical role in achieving the UN's Sustainable Development Goals (SDGs) 17 ("ensuring sustainable consumption and production patterns"), as it heavily consumes natural mineral resources and generates massive mining …
The steady increase in iron-containing waste reserves and the reduction of natural ore reserves indicate the need to process tailings and other mineral wastes. ... end-of-life mine site rehabilitation is included in the cost of opening a mine. Motivating companies to recycling iron-bearing wastes can be part of this process and add economic ...
Mining slag can also be reprocessed to recover low-grade ores using hydrometallurgy techniques. A study used sulfuric acid to cause the leaching and concentration of zinc and iron from the waste material in an old …
The proposed model for mining waste management is composed of SWOT, FAHP and FTOPSIS and performed in three main steps: (1) Forming the SWOT matrix and identifying mining waste management strategies, (2) Calculating the relative weights of criteria and sub-criteria via FAHP, and (3)Evaluating the alternatives and optimum prioritize the alternatives …
If waste rock is characterized as potentially acid generating, co-disposal may be an option worth considering. In the opposite situation where waste rock is non-acid producing (neutral or alkaline) and tailings have the potential to produce acid, layered co-deposition should not be used because the layers of waste rock may ease the oxygen ...
Mining is an important industry, accounting for 6.9% of global GDP. However, global development promotes accelerated demand, resulting in the accumulation of hazardous waste in land, sea, and air ...
The generated tailings in the mining sector are mostly disposed through conventional tailings management systems (e.g., storing in tailings dams). Due to the depletion of global ore deposits and new environmental rules, it is inevitable to consider new tailings management systems including recycling and reuse.
Disposal of mine waste generated at every steps of operation requires revenue and is complicate to maintain. On the other hand, the behavioral pattern of iron depends upon its ionic speciation that varies strongly with respect to pH and sulphate concentration.
Mining is an important industry, accounting for 6.9% of global GDP. However, global development promotes accelerated demand, resulting in the accumulation of hazardous waste in land, sea, and air environments. It reached 7 billion tonnes of mine tailings generated yearly worldwide, and 19 billion solid tailings will be accumulated by 2025. Adding to this, the …
Works on the sustainable management of mining waste were in the minority, but it is an area of research that has considerable potential given the growing social awareness of the environmental ...
Such sulfide-containing mine tailings tend to be oxidized during weathering and release toxic metals and metalloids, including As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, and Zn (Assawincharoenkij et al., 2017), although this process depends on the environmental conditions; secondary minerals, such as iron hydroxide, iron oxyhydroxide, goethite ...
International Assessment of Marine and Riverine Disposal of Mine Tailings1 Craig Vogt This paper summarizes a report of a world-wide inventory of operating mines that dispose of mine ... becomes waste is about 20-60% for iron, 99% for copper, and 99.99% for …
Yuanjiacun iron mine of Shanxi province in China is the largest iron mine of micrograined hematite combined with magnetite in Asia. The annual processing capacity of iron ore reaches 22 million tons, and the wastewater from mineral processing is about 400 thousand m 3 every day. If the dressing wastewater is directly discharged into the nature ...
and improving the mining condition, but also a good idea of disposal method on solid waste from mines. Backfilling the mined out area could decrease the amount of land usage and reduce the impacts on
The global mining waste management market is estimated to grow from $172.60bn in 2021 to $208.33bn in 2028 at a compound annual growth rate of 2.7%. The market for mining waste management divides waste into two …
Rapid economic development and increased demand for mineral products in China have led to extensive extraction of various ores, resulting in significant environmental challenges associated with the generation of industrial solid waste, particularly iron tailings. Despite being a major mining nation, China faces issues of wasteful practices, with substantial …
Mining wastes, particularly in the form of waste rocks and tailings, can have major social and environmental impacts. There is a need for comprehensive long-term strategies for transforming the mining industry to move toward zero environmental footprint. "How can the mining industry create new economic value, minimise its social and environmental impacts …
The ratio of waste rock/ore is called stripping ratio. For example, a stripping ratio of 2:1 means that 2 tonnes of waste rock needs to be removed to mine 1 tonne of ore. Generally, an open pit mine has a higher stripping ratio than an underground mine. Waste rock is often deposited in piles or heaps close to the mine to minimize transports. As ...
The mining of magnetite iron ore in Western Australia will generate large volumes of waste rock and tailings over many decades. The need to dispose of these materials will result in massive waste landforms that will require significant planning and management. The formation of comparable man-made landforms is relatively common, as exemplified through past practice …
The open pits and waste rock disposal areas are the principal visual and aesthetic impacts of mining. Underground mining generally results in relatively small waste rock disposal areas ranging from a few acres in size to tens of acres (0.1 km2). These areas are typically located near the openings of the underground workings.
Despite numerous recycling methods, the majority of mine waste is still stored in facilities or waste sites. The long-term storage of these facilities has become an important topic in modern mine closures. Various regulations have come to pass that require the waste to be stable for years, sometimes centuries. This requires engineers to develop ...
Particularly in iron mines, materials that have below 20 to 30% iron content are thrown away and dumped as waste. Hence, it is essential to categorise the types of waste …