Taking a Lead-Zinc mine in Inner Mongolia as an example, this paper introduces the use of tailings backfill technology to solve the problems of surface subsidence due to mining activity, including the following contents: (1) investigation and three-dimensional modeling of underground goaf and surface subsidence area, (2) tailings backfill test ...
The tailings dam of the abandoned lead–zinc mine is located in Zixing City, Hunan Province, South-Central China, adjacent to County Road X023, and there is a river flowing through on one side of the dam (Figure 1a,b). Surface runoff is primarily derived from atmospheric precipitation, resulting in noticeable water level fluctuations.
Filling mined-out area with tailings is one of the effective ways to directly use lead-zinc tailings. Especially for mining enterprises without lead-zinc tailings reservoirs, it has...
and ecological risk of heavy metals in an abandoned lead–zinc mine tailings dam, this study first employed X-ray fluorescence analysis to determine the vertical distribution patterns of heavy met-
The solution they required would involve creating a small dry-stack tailings area with minimised environmental and physical footprint and also a method to backfill the mine by using an …
Lead-zinc mine tailings (by weight) were used as a substitute for 10, 20, 30, and 40% of cement, and their effect on fresh and hardened UHPC behaviors was studied. The …
The tailings dam was reaching capacity for conventional wet tailings deposition and so Hindustan Zinc needed a way to resolve this issue. The solution they required would involve creating a small dry-stack tailings area with minimised environmental and physical footprint and also a method to backfill the mine by using an adjusted dry filter ...
The lead-zinc mineral resources are indispensable in industrial development and economic growth [1, 2], which has been widely used in the electrical, metallurgical, and pharmaceutical industries [3].However, the environmental impacts of these resources' excavation and subsequent beneficiation have been ignored for many decades [4].Due to the …
Lead-zinc mineral resources are crucial for the development and economy, while the mining process often results in plenty of tailings, resulting in the solid waste generation (Çoruh et al., 2013).These tailings lead to potential discharge of heavy metal ions (Karbassi et al., 2016, Lei et al., 2016), threatening the environment and human health (Li et al., 2014, Zhang et al., …
Types of sequentially raised tailings dams. Credit: GRID. The type of tailings dam a mining company builds is directly related to the safety of the structure. Engineers have found that tailings dams tend to be safest, i.e. most resistant to failure and collapse, when they are not built on top of or using previously-deposited tailings. However ...
Mine tailings can have a specific assemblage of plant species due to their unique physicochemical properties, and this process can be important in developing ecological theory and restoration practice. Physicochemical properties and natural colonization of plants on five lead/zinc (Pb/Zn) mine tailings in southern China were investigated.
A lot of research has been done on how to use tailings as a component for all kinds of materials. Cement Paste Backfill (CPB) may be the most important application, which can be backfilled into abandoned open pit mines or as …
The silver is leached from the lead and zinc concentrates before smelting. Silver, lead and zinc are extracted from ore using crushing, sequential floating and leaching techniques that yield high-grade, marketable lead and zinc concentrates with a high silver content. Production at Cannington silver mine. During the year ending FY20, Cannington ...
The study Lead-Zinc mine belongs to Shangdong Gold Group A'erhada Minerals Co., Ltd., with a capacity of 900 thousand tons per year, which lies in East Ujumuqin steppe of Xilin Gol League in
There are some disposal methods such as tailing dams, dry disposal, in-pit disposal, submarine, and riverine tailings disposal, co-disposal of tailings, and paste technology that have been used in the mining industry for a long time [7], [8], [9].Although the most widely used of these methods is tailing dams, this method has many disadvantages in terms of cost, …
Dairi Prima Mineral is planning to build an underground mine to extract zinc, lead and silver ore that will create millions of cubic meters of toxic tailings in one of the world's highest earthquake risk zones in Sumatra. ... the remaining millions of cubic meters of toxic waste would be stored in a tailings dam that the company says will be ...
of tailings sources were identified, such as lead, zinc, copper from overload, rock wa ste, processing tailings, metallu rgical slag, and w ater treatment residuals, among others . It
Lead–zinc tailings are the typical solid wastes in mines with high yield and low utilization rates in some countries at present. They are mainly stockpiled in tailings reservoirs, occupying...
DPM plans to ship, process and sell the lead and zinc from the mine to China. But experts say the dam is so unsafe that its construction would be illegal in China, which last year limited the number of new tailings dams and shut down older ones because of …
The Red Dog Mine is an open pit, truck-and-loader operation using grinding and flotation processes to recover zinc and lead. The mine is located in northwestern Alaska, in the De Long Mountains of the Western Brooks Range, approximately 82 miles north of Kotzebue and 46 miles inland from the coast of the Chukchi Sea, on land owned by NANA ...
To analyze the pollution level and ecological risk of heavy metals in an abandoned lead–zinc mine tailings dam, this study first employed X-ray fluorescence analysis to determine the vertical ...
In the process of mineral processing, tailings are often used to fill the empty spaces in mines to maintain their structural stability. However, since these tailings contain various chemical...
tailings dam failure of the Los Frailes lead-zinc mine at Aznalcóllar near Seville, Spain, released 4-5 million cubic meters of toxic tailings slurries and liquid into nearby Río Agrio, a tributary to Río Guadiamar. The slurry wave covered several thousand hectares of farmland, and it
The potential to reduce the risks posed by tailings dams using satellite-based information. International Journal of Disaster Risk Reduction, 38 (2019), p. 101209. ... Recycling of harmful tailings lead-zinc mine tailings and fly ash for preparation of inorganic porous ceramics. Ceramics International, 43 (6) (2017) ...
The continuous extraction and application of low-grade ores can increase the disposal of mine tailings in the future. As long as the disposal of mine tailings is not properly managed, they not only cause severe contamination, but also bring about undeniable economic problems [6], [7], [8]. Reusing mine tailings help protect the environment.
The aim of this paper is to use X-ray Absorption near edge structure (XANES) analysis to determine As and Sb speciation in mine tailings recovered from an active lead zinc mine TMF. We have collected samples over time after deposition in the tailings impoundment to investigate how processing and tailing storage affects metalloid speciation.
2. MINE TAILINGS AND TAILINGS FACILITIES: AN OVERVIEW Mine tailings are the waste material that remains after the economic fraction has been extracted from the mineral ore. Tailings consist of a slurry of ground rock, and water and chemical reagents that remain after processing. The composition of mine tailings varies
Compared with the other HMs, Mn and Zn can be more easily leached from lead-zinc mine tailings, then migrate into deeper layers in paddy soil. The proportions in five …
Boquira mine tailings' sampling The former lead–zinc otation plant from the Boqueira mine was fed with ore from a deposit without large heterogeneity. The tailing dam of this former plant was sampled at several points (samples of about 2–5 kg), and the resulting samples were homogenized and a composite sample was used in the
AbstractThere are large volumes of lead-zinc tailings (LZT) produced in China and elsewhere in the world. LZT disposal to the landfill is problematic and causes many environmental issues. ... and J. L. Huang. 2014. "Sinterability and expansion property of ceramsite made with lead-zinc mine tailings." In Vol. 551 of Applied mechanics and ...
The use of ultrafine tailings combined with various binders at different ratios plays a key role in determining the rheological properties and mechanical strength of cemented …
In the process of mineral processing, tailings are often used to fill the empty spaces in mines to maintain their structural stability. However, since these tailings contain various chemical ...
Wang et al. (2018) examined the development of an ultra-high-performance concrete (UHPC) sample using a combination of lead-zinc mine tailings. Lead-zinc mine tailings (by weight) were used as a substitute for 10, 20, 30, and 40% of cement, and their effect on fresh and hardened UHPC behaviors was studied.