- منطقة بودونغ الجديدة ، شنغهاي ، الصين .
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Biohydrometallurgy is the metallurgical process of extracting metals by using the properties of certain microorganisms in mineral solutions. As one of the key technologies for the clean and efficient utilization of mineral resources, it is a cross-technology integrating biotechnology, mining engineering, and metallurgical engineering.
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Microorganisms can play a beneficial role in all facets of minerals processing, from mining to waste disposal and management. Some of the applications, such as biologically assisted leaching of copper sulfide ores, uranium ores, and biooxidation of refractory sulfide gold ores, are now established on the scale of commercial processes.
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Bioleaching, the use of microorganisms for extraction of heavy metals, ... Because bacteria flourish in mining settings, they are easily cultured and recycled. For ores with very tiny amount of metal(s), bioleaching can be a very helpful procedure in metal recovery.
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Bioleaching (or biomining) is a process in mining and biohydrometallurgy (natural processes of interactions between microbes and minerals) that extracts valuable metals from a low-grade ore with the help of microorganisms such as bacteria or archaea.
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Bio- and phytoremediation, being encouraging terms implying the use of biological systems for cleansing purposes, have risen a worthy venture toward environmental restoration in discouraging scenarios, such as the augmentation of indestructible heavy metals. Hyperaccumulating plants and heavy metal resistant …
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Use of microorganisms not only help in detoxification but also facilitates extraction. Sulfate-reducing microorganisms have been applied for the treatment of acid mine waste Amongst all the known microorganisms, SRB plays a vital role in mine waste treatment, neutralizing acidity & reviving alkalinity.
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The use of plant growth-promoting microorganisms is among the most promising approaches; however, molecular mechanisms underneath plant–microbe interactions are still poorly understood. In this review, we summarized the knowledge on plant–microbe interactions, highlighting the role of microbial and plant proteins and …
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This ability can be made use of in environmental remediation with the help of biotechnology. The technology employing micro-organisms for metal extraction have been used significantly in mining industry in the past and have shown a significant progressive development. This technology is known as "Bio-hydrometallurgy".
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Microorganisms contribute to biogeochemical cycling of gold. ... mining applications enabling efficient metal extraction from low-grade ores are of increasing interest to the minerals industry. Microbial processes may provide one such solution since they can participate in the biogeochemical cycling of gold in many direct and indirect …
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Our data comes from contributing to know the bacterial diversity, relationship between these bacteria and can explore strategies for natural bioremediation in mining areas or adjacent areas under regeneration process in iron mining areas.
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Most of the biomining microorganisms belong to the domains Bacteria or Archaea and present similar metabolic characteristics: iron and/or sulfur oxidizing activity, acidophilia, and in many case authotrophy (Schippers 2007). Biohydrometallurgy includes two different oxidative processes, bioleaching and biooxidation, although the microbial ...
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The chemical synthesis of monoatomic metallic copper is unfavorable and requires inert or reductive conditions and the use of toxic reagents. Here, we report the environmental extraction and conversion of CuSO 4 ions into single-atom zero-valent copper (Cu 0) by a copper-resistant bacterium isolated from a copper mine in …
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This demand has induced an increase in mining activities and consequently a release of RE into the surrounding environment, causing a potential threat to human health and the environment. ... the use of bacteria (bioaugmentation) capable of mobilizing RE and/or stimulating plant growth (PGPR – Plant Growth Promoting …
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The use of naturally occurring organisms to augment or enable mining processes, as opposed to using chemicals like cyanide, also offers mining companies the chance to improve their environmental credentials and expedite permitting; something which is becoming ever more difficult.
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In an era of environmental degradation, and water, and mineral scarcity, enhancing microbial function in sustainable mining has become a prerequisite for the future of the green economy. In recent years, the extensive use of rare earth elements (REEs) in green and smart technologies has led to an in …
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The mining industry's understanding of the practical considerations of deploying microbial sulfide oxidation flowsheets had become generalized (The Chemistry of Gold Extraction 2nd Edition, 2006; SME Mineral Processing and Extractive Metallurgy Handbook, 2019) although the rigor of maintaining viable microbial processes and the …
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A process for biological removal of iron from quartz sands, kaolins and clays was developed in which these industrial minerals were leached at 90°C with lixiviant produced as a result of the cultivation of acid-producing heterotrophic microorganisms, mainly strains of Aspergillus niger, at 30°C in a nutrient medium containing molasses as a source of …
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