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Environmental hazards are present during every step of the open-pit mining process. Hardrock mining exposes rock that has lain unexposed for geological eras. When crushed, these rocks expose radioactive elements, asbestos-like minerals, and metallic dust. During separation, residual rock slurries, which are mixtures of pulverized rock and ...
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In some cases, bioavailable metals are absorbed by plants and animals, causing detrimental effects. Although current U.S. mining and reclamation practices guided by environmental regulations minimize or prevent waste rock erosion into streams, disposal of waste rock in places where it could erode into surface drainages has occurred historically.
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The economy of this city is closely linked to the economic spin-offs of platinum mining, with the sector contributing 77% of the city's Gross Geographic Product (GGP). ... the country in 2010 due ...
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South African mining companies are facing increased pressure to address their environmental impact. If a more strategic and holistic approach is taken, they can leverage the uncertainty of climate …
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The mining industry has only just begun to set emission-reduction goals. Current targets published by mining companies range from 0 to 30 percent by 2030, far below the Paris Agreement goals. 2 Limiting …
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Although mining is a cornerstone of the South African economy (), it generates copious amounts of dust. 1 The dusts may be toxic since they may also be contaminated with various toxic metals.For this reason, the prevalence and severity of occupational diseases in the mining industry depends on the ores mined, the …
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We are studying environmental issues related to mining, and potential mining, in the Great Lakes region, continuing the study of characterizing baseline geochemistry of several watersheds in Minnesota and Michigan, examining the potential for aquatic toxicity from metals, and examining the acid-neutralizing and acid-generating …
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Smelting can be a major source of air pollution, especially SO 2 gas. The case history below examines the environmental impact of mining and processing gold ore. Figure 5.6.6 5.6. 6 Acid Mine Drainage. The water in …
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Introduction. Heavy metals are defined as metallic elements that have a relatively high density compared to water [].With the assumption that heaviness and toxicity are inter-related, heavy metals also include metalloids, such as arsenic, that are able to induce toxicity at low level of exposure [].In recent years, there has been an increasing …
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The Driekop community's perception of the impact of the Modikwa platinum mine. ... in place for the mining sector: guidance for environmental impact assessments (EIAs), environmental monitoring ...
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Platinum is used to make the electrolyzers that produce hydrogen and the sharp down cycle in South Africa's platinum mining sector demonstrates how low prices and a lack of investment could slow ...
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Mining continues to be a dangerous activity, whether large-scale industrial mining or small-scale artisanal mining. Not only are there accidents, but exposure to dust and toxins, along with stress from the working environment or managerial pressures, give rise to a range of diseases that affect miners. I look at mining and health from various …
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Environmental pressure from mining activities such as those from the platinum sector occurs through the fine-grounded slurry from the processing plants, with its associated extracting chemicals that reach the tailings disposal facility (TDF). It is important that the effects of these activities on the environment are examined, especially in South …
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The city of 176,000 has long been recognized by environmentalists — and even by the Russian government — as one of the most polluted places on Earth, because of one business: Norilsk Nickel ...
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mining companies to increase their operations' wider socio-economic benefits. This high-level analysis provides a fresh outlook on the impact of the main platinum mining houses' operations in the Rustenburg area and aims to contribute to the existing debate on the role of mining, corporate sustainability and living
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According to the UN Environment Programme, over 53 million tons of e-waste were generated in 2019, with approximately $57 billion raw materials containing precious REEs and metals (platinum, gold ...
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Concerns are being raised about the long-term ability to supply PGMs to meet future technological needs, as well as allegations of significant environmental and social …
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For example, during the use of platinum-containing catalyst in the nitric acid production industry, some platinum may escape into the environment due to the loss of platinum from ammonia oxidation gases during production (Vlasankova 2001). In particular, palladium-based homogenous catalysis is of critical importance in the pharmaceutical …
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Water stress. Climate change is expected to cause more frequent droughts and floods, altering the supply of water to mining sites and disrupting operations. We recently ran and analysed a water-stress and flooding scenario using McKinsey's MineSpans database on copper, gold, iron ore, and zinc.
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Abstract. Mining continues to be a dangerous activity, whether large-scale industrial mining or small-scale artisanal mining. Not only are there accidents, but exposure to dust and toxins, along with stress from the working environment or managerial pressures, give rise to a range of diseases that affect miners.
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For instance, when the government tried to make platinum mining companies pay $49 million to compensate for water costs, a lack of systemic state capacity to enforce compliance meant that some platinum operations simply ignored the directive. South Africa has laws in place to improve environmental and social governance in mining.
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Yet these positive advances rely on a small number of "technology-critical elements," or TCEs, rare materials whose mining, production and disposal are linked to …
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... Many of the environmental issues surrounding the supply of gold described in the previous section also apply to palladium, including the negative impacts …
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The UN Environment Programme estimated that over 53 million tons of e-waste were generated in 2019, including $57 billion worth of raw materials laced with rare earth elements and precious metals such as platinum, gold, and silver. Recycling these valuable elements and metals could reduce the amount of mining that will be needed.
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The initiative establishes a best practice standard for responsible mining in industrial-scale mines and ensures that its certification is a high bar across all potential mining issues. In particular, it advocates for environmental and labor values and has found that both purchasers and investors have demonstrated a keen interest in rewarding ...
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2. Description of the study area. The Bokoni platinum mine is one of the many mines in South Africa and has been in operation since 1963. The mine is situated about 80 km southeast of Polokwane City in Limpopo Province …
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The growing popularity of platinum group metals (or PGMs, including platinum and palladium) for a wide range of applications leads to some interesting issues for mining and sustainability. The uses of PGMs includes catalytic converters for air pollution control in vehicles, growing jewellery use, catalysts for various purposes …
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That will depend partly on the governance of a global mining sector tarnished by accusations of human rights abuse, environmental damage and financial corruption. Expanding renewable energy is a ...
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Ore Processing by PGM Concentration Process and Assessment of CO2 Equivalent Emissions and Environmental Damage Directly Involved. Platinum group …
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Jurisdictions extracting energy transition metals in low-risk contexts are positioned to develop and maintain safeguards against mining-related social and …
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