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·There is a need to define mine tailings in a clear precise multidisciplinary transdisciplinary and holistic manner considering not only geotechnical and hydraulic concepts but also integrating environmental and geochemical aspects with implications for the sustainability of mining This article corresponds to an independent study that answers questions concerning
Tailings management during mine operation and afterward are the responsibility of mining companies Government agencies regulate tailings and set minimum design standards Tailings management and storage facilities are engineering projects which comply with safety and environmental control requirements Water management and dust management are
·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
·The process at Millsell involves six stages the first of which is the obviously the mining that produces the tailings The mines in upgrading the chromite content of their ore produce a tailings stream that contains the majority of the PGMs of the ROM chrome ores It is these chrome ores with elevated levels of PGMs that are treated
In this study concentrations of metals in the native plants and soils surrounding the old flotation tailings pond of the copper mine were determined It has been established that the soil is heavily contaminated with copper iron and arsenic the mean concentrations being 29 and mg kg −1 respectively All the plants
· Chemical compositions of gold mine tailings The chemical compositions of mine tailings shown in Table 1 indicate that SiO 2 is the most abundant component of the samples which varied from to % by weight Although all samples also contain Al 2 O 3 CaO and Fe 2 O 3 they are present in variable amounts Table 1 The samples also contain
·Much progress has recently been made on the relation between the crystal chemistry of arsenic and its speciation and distribution at the Earth s surface The investigation of As impacted soils and acid mine drainages using synchrotron based techniques shows the importance of As adsorption on or coprecipitation with hydrous ferric oxides in delaying the
·Tailings from the abandoned Tiouit mine site in Morocco are mainly composed of sulfides hematite and quartz They contain wt % sulfur mostly in the form of pyrite pyrrhotite and
·The main design and building constraint is that it has been constructed over an existing tailings facility from the 1980s The construction activities involved removal and substitution of the old tailings southern portion emplacement of gravel columns over an area of about 10 000 m 2 and construction of the dyke s dam
·The carbonate content of tailings was determined by following the method of Rowell for the purpose of figuring out the applicability of different SEP s in metal fractionation for mine tailings new and old two SEP s i Sequential extraction procedure proposed by the European Union s Standards Measurements and Testing Program
·Ecological engineering of tailings has been advocated to change tailings mineralogy improve physicochemical properties and accelerate soil formation pedogenic processes allowing the re colonisation of microbial communities and pioneer plant species Huang et al 2012 These early settlers in turn act as powerful biological drivers to advance
·Increasing population levels growing economies rapid urbanization and changes in consumption patterns have increased the demand for raw materials such as base and precious metals leading to growing concerns regarding their availability and the global efficiency of the mine supply chain Mine tailings consisting of process effluents that are generated in a
·Assessment and mobility of heavy metals in carbonated soils contaminated by old mine tailings in North Tunisia Author links open overlay panel Ghassen Daldoul a b Radhia Souissi a Fouad cation exchange capacity CEC was low with a mean value of cmol kg −1 and organic matter OM content varied between % and % These
·The current state of the tailings in Kettara shows that besides the tailing impoundment spoil heaps of various nature cover an area of about 37 ha approximately 22% of the global surface of the mining site village offices mine and tailings Fig 2 This seems to disorderly dumping of the tailings during the mine closure
·The copper content of old flotation tailings is similar to the world average content of about % copper in mined ore These are disposal sites for overburden from the old surface mine flotation tailings residual ore in the pit and so on Flotation tailings from the Bor mining complex in Serbia are a by product of the ore
·Reprocess tailings Really Yes really If the technology exists today to remove up to 90% of water from mine tailings and if a mining company is going to make that investment anyway to secure its future operations then frankly it is irresponsible not to consider reprocessing the tailings that currently sit in its TSFs
·One example is Tasmania s Old Tailings Dam which contains mine waste piled more than 30 metres deep between 1962 and 1982 While many rehabilitation options have been considered
·The mine tailings are mixture of fine grained solid materials remained after extraction of recoverable metals and minerals and water used in the process [18] There are two main reasons for extracting critical minerals from mine tailings particularly from old and abandoned tailings
·The overall SULTAN project concept is presented in Fig a diversified and sustainable supply chain approach SULTAN develops novel methodologies to study the resource potential of Europe s most important tailing families Cu Zn Zn Pb and Cu Zn Pb tailings WP1 and explores eco friendly mining chemicals that can be integrated
·Partner Content; Latest Ways to grow your personal brand; Jowett who has been working in mine tailings research in the US and Australia for more than a decade is leading a programme at the university to catalogue and characterise around 20 000 mine sites in the state that are at least 30 years old The team has applied for a grant with
·Tailings containment dam failures cause severe environmental social and economic impacts Analyzing past occurrences allows society and decision makers to improve storage facility safety This study presents an overview of tailings dam failures exploring historical aspects and environmental consequences Two methodological strategies were used 1 An
·The biggest waste streams both in metal value and in volume in mining are tailings which create long term environmental liabilities to the companies Wang et al 2014 due to the potential for acid rock drainage generation Simate and Ndlovu 2014 from sulphidic of considering the tailings only as an environmental challenge the tailings
·Soil contamination with heavy metals is a serious concern to food production and human health The present study was conducted to evaluate the impact of tailings from an old mining site on heavy metal contamination of soil Using a GPS to map out different sites around the tailing dam soil samples were taken from under grassland at the different sites at depths
·Century old tailings at the Beaver Mine site Cobalt Ontario Canada are migrating downstream to previously uncontaminated Kirk Lake resulting in metal dispersal into the environment These metal rich tailings have high arsenic concentrations and exceed the Ontario regulatory standards for arsenic in soil 18 mg/kg by up to 240 times Arsenic
·Nova Lima hometown of the AngloGold Ashanti operation in the state of Minas Gerais Brazil has been a gold centre since 1834 At that time the tailings were dumped directly into local rivers and streams Since the 1930s however tailings at the Morro Velho Mining operations began to be deposited along the banks of the Cardoso River amounting to one
·In cases of long term exposure mining tailings pose risks to the environment and human health and therefore there is a need to develop new approaches for using tools such as risk assessment to predict accidents in dam failures These equations shows that the compressive strength and density of concrete reach the maximum when the content
The aim of this study was to identify wild plant species with potential for remediation of As and Pb and to measure the 40K activity on soil mine tailings in Sombrerete Zacatecas North Central Mexico The analysis of As and Pb was performed by atomic absorption spectrometry while the concentration of 40K was carried out by low resolution gamma ray spectrometry Plants
