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Yuanjiacun iron mine of Shanxi province in China is the largest iron mine of micrograined hematite combined with magnetite in Asia. The annual processing capacity of iron ore reaches 22 million tons, and the wastewater from mineral processing is about 400 thousand m 3 every day. If the dressing wastewater is directly discharged into the …
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Iron ore tailing (IOT) is a mining and mineral waste obtained from the iron ore mining industry [9]. The proper disposal of tailings has become crucial for environmental preservation. In the case of iron ore tailings, the tailings are fine particles, containing silica together with iron oxides, alumina and other minor minerals.
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The reuse of MOW also offers obvious environmental benefits. The large amount of wastewater generated by mining activities has become an important environmental concern throughout the world [35], [36]. Several techniques have been introduced for the treatment of mining and ore washing wastewater [37], [38].
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The mining of ion-adsorption rare earth minerals or ores generated a large amount of wastewater containing rare earth elements at low-concentration, resulting in continuous environmental pollution. For this problem, our study prepared an efficient, recyclable MgO/MgFe 2 O 4 magnetic adsorbent, synthesized by a template method and …
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The final form of waste can be detrimental to the feasibility of reuse and recycling because it dictates the cost of further processing. Mining and mineral-processing wastes consist of rocks, soils, oil sands, and loose sediments. The mineralogical and chemical characterizations of mining wastes are useful in forecasting geotechnical …
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For the iron ore with a Fe content of 24.91%, a pi ... Reuse of iron ore mineral wastes in civil engineering constructions: A ... For the iron ore with a Fe content of 24.91%, a pilot-scale study of pre-concentration, suspension magnetization roasting, grinding, and low-intensity magnetic separation was conducted, and an ...
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In conclusion, the combination of direct contact membrane distillation and ion exchange has been shown to be an effective method for generating reuse water and recovering byproducts from gold mining wastewater. A maximum of 33.9% of reuse water recovery was achieved from the DCMD, considering a permeate with high quality (22.8 …
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The coalmine wastewater from the Mao Khe closed mine was a typical Vietnamese coalmine wastewater. Table 1 presents the water quality characteristics of the raw, untreated water used in this study. It had a low pH (2–6), high Fe and Mn concentrations (averaging 3–8 mg/L), high suspended solids concentrations (TSS = 150–450 mg/L), and …
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Cooling tower blowdown is wastewater produced by thermoelectric power plants, while produced water is created by hydraulic fracturing mining for oil and gas.The cotreatment process yields valuable ...
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DOI: 10.1016/j.jclepro.2019.118898 Corpus ID: 211462095; Minimizing beneficiation wastewater through internal reuse of process water in flotation circuit @article{Shangyong2020MinimizingBW, title={Minimizing beneficiation wastewater through internal reuse of process water in flotation circuit}, author={Lin Shangyong and Run-qing …
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Thus, the treatment and purification of mining wastewater for reuse are essential to mitigate water scarcity [6,7]. There are several methods utilized for the treatment of mining ... and eight modules with different functions: a settling tank (MD1), an adsorbent tank (MD2) (modified iron-ore drainage sludge), and constructed wetlands …
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The desorption efficiencies of REEs were > 80.0% 4 after 4 reuse cycles. Abstract. ... while a major challenge, is urgently required to purify rare earth ore mining wastewater and thus facilitate the reuse of ... (II) from mining wastewater by carbon@nano-zero-valent iron (C@nZVI) derived from biosynthesis. Sep. Purif. …
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Water management and wastewater treatment solutions and services for the mining industry include: Mine dewatering pumps, water pipelines, and storage tanks. High-pressure filter presses. Automatic flocculant units. Reverse osmosis (RO), ion-exchange, and membrane filters for treating process rinse waters and waste effluent.
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Water use and energy consumption in mining have been identified as two key business risks by the mining industry. Further, it is identified that future availability of water supply is a significant risk for the hard rock mining sector and a range of treatment methods for mitigating the impending risk are essential as competition for access to …
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A plant not reusing or recycling any water would thus require 1.9–3.0 m 3 of water per tonne of ore processed. In addition to flotation, water is used for various applications including grinding, screening, dust scrubbing, wash water, dust suppression, pump gland seal water (GSW), and reagent mixing.
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Here, the sources of and hazards posed by wastewater produced during non-ferrous metal mineral processing are introduced and the techniques for removing heavy metal ions and organic chemicals are …
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This study intended to simultaneously treat and recover water for reuse, sulfuric acid, and copper from gold mining wastewater, from an innovative integrated system of membrane distillation (MD ...
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While pH adjusters, coagulants and flocculants are the main chemicals used to mining wastewater treatment, certain applications require additional chemicals to protect your systems or to help prepare your water for filtration. These can include: Water softeners and ion exchangers. Corrosion inhibitors.
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Iron-rich sludge have become a resource with great potential for recycling. More importantly, the recovery of iron salts maximises the reduction of sludge, reduces the amount of iron salts use, and conforms to the concept of sustainable development. Several methods of iron reuse are introduced in detail below, and innovative ideas are proposed.
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Mining industry wastewater reclamation and reuse. ... goes dates back to 1884 1848 to 1868 when iron ore was discovered in the Vermilion Iron Range was discovered. ... date has been iron deposits ...
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The recovery and reuse of valuable resources (e.g., clean water, sulfuric acid, and metal ions) from AMD can offset the cost of AMD remediation. Iron oxide …
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Iron Ore; Rare Earth; ... presents an economically and ecologically optimized process for the circular recovery and reuse of rare earth metals from diluted industrial wastewater from the mining ...
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Banded iron formation (BIF) comprises 15% iron, comprising minerals of iron that are bedded besides silica. Beneficiation processes of iron ore generate dust in the atmosphere, acid mine drainage in the ecosystem …
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Ferrous waste by-products from the metallurgical industry have a high potential for valorization in the context of the circular economy, and can be converted to value-added products used in environmental remediation. This research reviews the latest data available in the literature with a focus on: (i) sources from which these types of iron …
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The behaviour of the dispersed phase of iron ore slime and fi nes is different for different surface-active agents. The improvement of iron value of slime and fi nes in the presence of surface ...
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The reuse of mining and mineral-processing wastes may minimize the environmental impacts related to disposal; however, some reuse and recycling …
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There, one iron ore mining operation has successfully adapted its tailings disposal and water reuse procedures to this environment, i.e., the Khumani iron ore mine in Northern Cape Province. Iron-ore deposits are found about 60 kilometers north of the Beeshoek mine on the Bruce, King and Mokaning (BKM) farms, adjacent to Kumba's …
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Water requirement and wastewater generation. The steel and iron industry requires a huge amount of water for their production, e.g., integrated steel plant make use of on average 28.6 m 3 water for per tonne of steel produced (Deepti et al. 2020).In iron and steel industries, water is generally required for off-gases, equipment, steel cooling and …
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Beneficiation processes of iron ore generate dust in the atmosphere, acid mine drainage in the ecosystem and metallic iron for steelmaking. ... Commercially available technologies exist that can treat and reuse a significant amount of the wastewater that is generated by the mining operation, thus reducing or eliminating the use and depletion of ...
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With the increase in situational awareness and environmental perception in recent years, more effective management of mine tailings has become necessary. 13.5. Recycling and reuse: recent approaches. Nowadays, the development of societies is based on limited fossil fuels and mineral deposits.
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