Investigation of geotechnical, hydro mechanical, and chemical behaviour of polymer-treated tailings M Boshrouyeh Ghandashtani Sustainable Minerals Institute, The University of Queensland, Australia M Edraki Sustainable Minerals Institute, The University of Queensland, Australia A Costine CSIRO Mineral Resources, Australia T Baumgartl Geotechnical and Hydrogeological Engineering Research Group ...
Efficient water & process chemical recovery Transportable by truck or conveyor Minimal water management ... 3.1 SETTING OF THE MINE SITE Tailings management is typically easier, at least physically, in dry climates, ... High topographic relief provides 'free storage' in valleys, requiring a facility of limited width, ...
Sibanye-Stillwater is committed to the safe and environmentally responsible stewardship of our tailings storage facilities. Tailings facilities store a mine's primary waste stream. Without proper management, these facilities can pose a significant risk to the natural and social environment. Catastrophic tailings facility failures can devastate the environment and destroy lives and ...
is tailing from gold mine site in Aroroy, Masbate which undergoes the same chemical process as TS#2. Tailings from the processing plant are discharged into a large tailings dam. Water decanted from the tailings dam is returned to the processing plant for possible re-use. Only solid wastes are left in the tailing …
Mining waste; phosphate rock mining, beneficiation, and processing waste; and uranium waste are three of the six special wastes identified. October 21, 1976 —Congress passes the Resources Conservation and Recovery Act (RCRA) (Public Law 94-580) which requires EPA to develop regulations governing the identification and management of hazardous waste.
Mine wastes vary depending on their physical and chemical composition, the type of mining and the way the mineral is processed. Millions of tonnes of ore are processed every year by the mining industry, >95% of which is disposed of in the form of waste rocks and mine tailings.
The chemical and physical nature of tailings particles can be likened to typical river sand and silt and their properties are determined by the nature of the ore, geochemistry, the processing method used in extracting the ore, the particle size of the crushed material and the type of chemical process used in extracting the ore [17,18].
Instead of being simply dumped, mine tailings can be re-mined. Through this process, characterisation of these wastes will allow for tailor-made, environmentally conscientious management ...
Tailings are one form of waste generated from mining. When mined. low grade porphery deposits, like the proposed Pebble prospect, will generate large volumes of waste 2 . For example, processing 10 billion tons of ore can produce up to 9.9 billion tons of tailings. Mine tailings contain solids and liquids, metals, and processing chemicals.
Large volumes of waste from the mining and processing industry, particularly flotation tailings of polymetallic ores, have accumulated all over the world. Mine tailings can cause severe environmental pollution and pose significant risks to both human and environmental health. However, by the contents of their metals, mine tailings can be regarded as sources for extracting copper, zinc, …
Miner. Process. 53(2), 2017, 1133 ... lead-zinc tailing and chemical fractionations of Pb and Zn in the contaminated soil were studied in details. ... -free deionized water using laboratory scale pH meter (PHS-3C Model), and the pH of lead-zinc tailing and contaminated soil were
volume of tailings being generated increased dramatically with the increase in the demand for minerals and metals, and the mining of many low-grade ores. The tailings always contain heavy metals, toxic substances, and chemicals added during mineral processing, which may disperse into the environment and threaten public health.
The physical and chemical qualities of the process effluent and the tailings dam wastewater of AngloGold-Ashanti Limited, a gold mining company in Ghana, …
Tailings consist of ground rock and process effluents that are generated in a mine processing plant. Mechanical and chemical processes are used to extract the desired product from the run of the mine ore and produce a waste stream known as tailings. This process of product extraction is never efficient, nor is it possible to reclaim all ...
Image from Clean Mining. A new technology that delivers commercial-scale, cyanide-free gold processing has been released by Australian-based company Clean Mining. The process …
Mine tailings are the finely ground residue from ore extraction. The grain size of the tailings depends on the nature of the ore and the milling process. Size measurements (Robertson, 1994) of tailings from four mines in Ontario, Canada, indicated the tailings materials to be predominantly silt and fine to medium sand with <10% clay content.
These processes are never efficient, nor is it possible to reclaim all reusable and expended processing chemicals. Tailings are discharged – normally as slurry – to a storage facility, where water is subsequently recovered and recycled back into the operation. Tailings are mainly discharged in …
Therefore, the Bureau's Salt Lake City Research Center began investigations on stabilization of mining and minerals processing wastes, and as early as 1969 reported on methods for their utilization and stabilization. Through this research the Bureau of Mines has demonstrated physical, chemical, and vegetative methods for stabilizing tailing ...
Industry Regulation fact sheet Mineral sands mining or processing — 2018 1 Industry Regulation fact sheet ... downstream chemical manufacturing); and disposal of sand, clay, and ore processing tailings either separately or together into specific containment structures or into mined voids. Production/design capacity
Chemical contamination and mining. What are the potential sources of chemical contamination from mining activities? Surface and groundwaters associated with mines are often affected by acidification. Acid mine drainage (AMD) is recognised as one of the most important environmental side effects of mining. Coal mines can have the most severe ...
is tailing from gold mine site in Aroroy, Masbate which undergoes the same chemical process as TS#2. Tailings from the processing plant are discharged into a large tailings dam. Water decanted from the tailings dam is returned to the processing plant for possible re-use. Only solid wastes are left in the tailing …
Mining of minerals such as gold, copper, and platinum has been one of several activities sustaining the economy of South Africa. However, the mining sector has contributed significantly to environmental contamination through the improper disposal of mine tailings which covers vast areas of land. Therefore, this study utilised a vitrification process to manufacture glass from gold mine tailings.
David John Williams, in Ground Improvement Case Histories, 2015. 2.4 Beaching behavior of mine tailings. The predominant method of tailings disposal is by pumping and sub-aerial deposition of an aqueous slurry (typically at 30–45% initial solids concentration by mass and an initial gravimetric moisture content, w, of 233–122%) to a surface TSF.The tailings may be discharged from a single ...
Mintails, a mine tailings processor, has developed new technology to process 350,000 tons of slimes from its extensive tailings resources. It expects to recover 58 kg of gold per month, and has enough slimes to last until 2025. Goldfields has also developed new technology for a tailings retreatment plant, and processes 12,000 tons of current ...
In order to maintain the normal mining operations, several methods are proposed for tailing disposal, including disposal of dry or thickened tailings in impoundments or free-standing piles, backfilling underground mine workings, subaqueous disposal, and the most common method, the disposal of tailings slurry in impoundments that involves the transport of tailing mass in slurry pipes to an ...
Tailings are finely ground rocks and other mineral waste as a result of mineral processing. Due to the way minerals are processed, tailings can contain concentrations of processing chemicals. This can make mine tailings an environmental concern, so proper transportation and disposal are crucial.
Tailings Pond Water Balance. Water systems in modern mines are complex and an understanding of the tailings pond and plant water balance is necessary. Control of the water balance can avoid problems such as operating losses from water shortages or hazardous releases as a result of a water surplus. Here is a schematic of a typical water balance.
They can contain concentrations of processing chemicals. They are an environmental concern, which is why proper transportation and disposal are crucial. The mine tailings are pumped with slurry pumps into tailing ponds. These are sedimentation holding ponds that are enclosed by dams to capture and store waste. 2. Liquid Mine Waste. Mine Water