3 ways to mine tailings treatment bahamas

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Home 3 Ways of Making Mine Tailing Dams more Sustainable Mario Honrubia mining mining industry chile mining sustainability tailing dams vale waste 0 The past January 25th one of the worst environmental and humanitarian disasters in the history of Brazil took place

Metso Tailings Management brings a comprehensive approach by combining 3 practices Dewatering the tailings handling them with dry stacking and reprocessing new and existing ones We also look to elevate the approach to reduce social hazards and associated risks which will improve the overall image of the mining industry

Meet the tailings dewatering challenge with Alfa Laval’s decanter centrifuges They offer a cost effective sustainable and above all safe solution to manage tailings Download the brochure to read more about our cleaner more efficient and safer solidliquid separation systems

DRD Gold one of the first South African companies to abandon traditional mining to focus on extracting gold from tailings New technology allows it to recover up to 40 of the gold left in particle form in tailings DRD Gold extracted 33600 ounces of gold worth nearly US40 million in the last quarter of 2013

Metso Tailings Management brings a comprehensive approach by combining 3 practices Dewatering the tailings handling them with dry stacking and reprocessing new and existing ones We also look to elevate the approach to reduce social hazards and associated risks which will improve the overall image of the mining industry

Sep 07 2017 · Background Recent major tailings dam failures have led to an industrywide review of the design and management of tailings storage facilities Before the 1960s mine tailings were often disposed directly into ponds lakes rivers or natural topographic depressions or stored in impoundments supported by earthen dams without necessarily applying engineering principles McLeod et al 2015

Tailings Management at NRCan Overview • Tailings are the byproducts that remain following the extraction and recovery of valuable minerals from mine operations They are generated by a milling process and are a mixture of finelyground sandto siltsized

More than 30 Alfa Laval decanter centrifuges have been installed at three different tailings treatment sites in Canada The decanters have proven to be an outstandingly efficient solution for largescale dewatering of tailings They efficiently remove the finest particles that conventional solids control equipment is unable to deal with

1 The Porgera Gold Mine open pit at an elevation of 2700 m 1 2 Competent waste rock stored in the Kogai waste dump 3 3 Anjolek erodible waste dump looking down the valley of Kaiya Creek 3 4 Members of the Porgera Environmental Advisory Komiti PEAK 4 5 Water quality sampling by PJV Environment Department personnel 4

New technology allows it to recover up to 40 of the gold left in particle form in tailings DRD Gold extracted 33600 ounces of gold worth nearly US40 million in the last quarter of 2013 Mintails a mine tailings processor has developed new technology to process 350000 tons of slimes from its extensive tailings resources

The role of sulphide minerals in tailings will be further discussed in lecture 5 When tailings are held under water it is called a subaqueous deposition The technique helps to minimize the oxidation of mainly sulphide minerals but also influences the way the tailings settle in the TSF which in turn impacts the longterm stability

Figure 3 Dry stacking of tailings using truck transportation © Jon Engels Some of the disadvantages to dry stack tailings are as follows High capital and operating costs associated with modern filtration technology power maintenance that render other tailings storage options more economic to develop

Water Management Considerations for Conventional Storage Figure 1 Water recovery from a conventional impoundment using a floating pontoon and walkway © Jon Engels Introduction Water has been the underlying source of virtually all failures of tailings

At such depths the heat is unbearable for humans and air conditioning is required for the safety of the workers The first such mine to receive air conditioning was Robinson Deep at that time the deepest mine in the world for any mineral By product gold mining Gold is also produced by mining in which it is not the principal product

Mine tailings can be classified as slurry paste or cake according to its final solidliquid ratio SL which arises from the treatment given to the slurries at the end of the extraction process Slurry undergoes no treatment paste is a thickened slurry and cake is a filtered slurry see Fig 1

Aug 26 2019 · Now let’s look at some alternate ways to cool your mine If you’re considering this first innovative systemlake water coolinga fun fact about water it’s heaviest at 4ºC 39ºF If a lake is deep enough you can find cool water at the bottom even if the lake is frozen over

Other studies have found that atmospheric CO 2 is naturally sequestered in ultramafic minetailings as a result of the weathering of serpentine minerals Mg 3 Si 2 O 5 OH 4 and brucite MgOH 2 and subsequent mineralization of CO 2 in hydrated magnesium carbonate minerals such as hydromagnesite Mg 5 CO 3 4 OH 2 × 4H 2 O Bea et al

Alfa Laval P3 decanter centrifuges are a proven effective dewatering solution for problems associated with tailing dams and filtration technologies Discover how our unique design enable you to handle your mining waste in a sustainable way even under the toughest conditions