Academic literature on the topic 'Bioleaching'

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Journal articles on the topic "Bioleaching"

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Deblina, Ball, Guha Barman Subhabrata, and K. Banik A. "Studies on bioleaching of silica from Indian chromite ore by a silica tolerant Aspergillus niger AB200 : Characterisation of some physical parameters and scanning electron microscopic studies." Journal of Indian Chemical Society Vol. 87, Jul 2010 (2010): 857–62. https://doi.org/10.5281/zenodo.5797452.

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Department of Chemical Engineering, Biotechnology Division, Calcutta University, 92, Acharya Prafulla Chandra Road, Kolkata-700 009, India <em>E-mail:</em> deblina.ball@gmail.com <em>Manuscript received 21 August 2009, revised 14 December 2009, accepted 18 December 2009</em> The bioleaching of silica from chromite ore was studied to remove silica from low grade chromite ore and therefore Increase the percentage of chromium In the ore. Three microorganisms <em>Bacillus circulans</em>, <em>Saccharomyces cenvisiae</em> and <em>Aspergillus niger</em> were used for bioleaching studies. The results
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Sreeremya, S. "Bioleaching." Invertis Journal of Renewable Energy 6, no. 2 (2016): 86. http://dx.doi.org/10.5958/2454-7611.2016.00011.4.

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Casas-Vargas, Julián C., Cristóbal Martínez-Bussenius, Álvaro Videla, and Mario Vera. "Novel Indigenous Strains and Communities with Copper Bioleaching Potential from the Amolanas Mine, Chile." Minerals 14, no. 9 (2024): 867. http://dx.doi.org/10.3390/min14090867.

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Bioleaching, a process catalyzed by acidophilic microorganisms, offers a sustainable approach to metal extraction from sulfide minerals. Chalcopyrite, the world’s most abundant copper sulfide, presents challenges due to surface passivation limiting its bioleaching efficiency. Also, indigenous species and microbial communities may present high copper extraction rates and offer new possibilities for application in bioleaching processes. This study examines the bioleaching potential of microbial isolates and communities obtained from Amolanas Mine in Chile. Samples were collected, cultivated, and
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Martínez, Patricio, and Pilar Parada. "BioSigma Bioleaching Seeds (BBS): A New Technology for Managing Bioleaching Microorganisms." Advanced Materials Research 825 (October 2013): 305–8. http://dx.doi.org/10.4028/www.scientific.net/amr.825.305.

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In Bioleaching, although it is already prove that chalcopyrite can be dissolved by microorganisms, a major task is to do it efficiently in economical terms at industrial scale. BioSigma Bioleaching Seeds (BBS) represents a biotechnological breakthrough for the production of bioleaching solutions on demand with high concentrations of biomining microorganisms. This innovation is mainly a product based on the encapsulation of BioSigma bioleaching microorganisms in a natural matrix of alginate. This technology gives the following operational advantages: 1. High concentration of inoculum. 2. Long p
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Gao, Xue-Yan, Xiu-Jie Liu, Chang-Ai Fu, et al. "Novel Strategy for Improvement of the Bioleaching Efficiency of Acidithiobacillus ferrooxidans Based on the AfeI/R Quorum Sensing System." Minerals 10, no. 3 (2020): 222. http://dx.doi.org/10.3390/min10030222.

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Acidithiobacillus ferrooxidans is an acidophilic and chemolithotrophic sulfur- and iron-oxidizing bacterium that has been widely used in the bioleaching process for extracting metals. Extracellular polymeric substances (EPS) are essential for bacteria-ore interactions, and the regulation of EPS synthesis could be an important way of influencing the efficiency of the bioleaching process. Therefore, exploring and utilizing the regulatory pathways of EPS synthesis to improve the bacterial bioleaching capability have posed a challenge in the study and application of bioleaching bacteria. Here, sev
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Ruan, Ren Man, Gui Ying Zhou, and Jian Kang Wen. "Study on Selective Depression of Pyrite during Copper Bioleaching." Advanced Materials Research 20-21 (July 2007): 172–73. http://dx.doi.org/10.4028/www.scientific.net/amr.20-21.172.

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During Zijinshan copper heap bioleaching, pyrite was leached in plenty resulting in high ferric concentration in solution. This affected bioleaching and extraction processing greatly. The paper studied the factors influencing in the course of leaching of pyrite and a mixture of chalcocite and pyrite respectively. It focuses on the effect of the redox potential for copper bioleaching so as to find key factors affecting the dissolution difference between chalcocite and pyrite. The experiment results showed that redox potential is an important influencing factor in bioleaching. Copper and pyrite
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Guo, Ya Fei, Tian Long Deng, Nan Zhang, and Meng Xia Liao. "Tellurium Extraction from the Unique Independent Tellurium Ores in China by Bioleaching." Advanced Materials Research 343-344 (September 2011): 625–30. http://dx.doi.org/10.4028/www.scientific.net/amr.343-344.625.

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This study was designed to investigate tellurium bioleaching from the unique independent low-grade tellurium ores containing tetradymite, joseite, pyrite, chalcopyrite, silica, and a minor amount of dolomite, which is the first discovered scattered element deposit in the world. For the bioleaching, the tellurium extractions from the low-grade ores by with and without the adapted bacteria of acidophilic Thiobacillus ferrooxidans were examined. The effects of pH, pulp density, and temperature for bioleaching were studied systematically. After 20 days of bioleaching at 30°C, an 80 % of the tellur
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Hong, Maoxin, Xingxing Wang, Lingbo Wu, et al. "Intermediates Transformation of Bornite Bioleaching by Leptospirillum ferriphilum and Acidithiobacillus caldus." Minerals 9, no. 3 (2019): 159. http://dx.doi.org/10.3390/min9030159.

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Bioleaching experiments, electrochemical tests, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) were conducted to investigate the intermediates transformation of bornite by Leptospirillum ferriphilum and Acidithiobacillus caldus. The bioleaching experimental results showed that the presence of L. ferriphilum and A. caldus significantly accelerated the bornite bioleaching. In addition, the intermediate species of bornite bioleaching with these two kinds of bacteria were similar. Electrochemical analysis indicated that the dissolution of bornite was an acid-consuming process.
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Qayyum, Sadia, Ke Meng, Sidra Pervez, Faiza Nawaz, and Changsheng Peng. "Optimization of pH, temperature and carbon source for bioleaching of heavy metals by Aspergillus flavus isolated from contaminated soil." Main Group Metal Chemistry 42, no. 1 (2019): 1–7. http://dx.doi.org/10.1515/mgmc-2018-0038.

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Abstract Soil contamination with heavy metal content is a growing concern throughout the world as a result of industrial, mining, agricultural and domestic activities. Fungi are the most common and efficient group of heavy metal resistant microbe family which have potential for metal bioleaching. The use of filamentous fungi in bioleaching of heavy metals from contaminated soil has been developed recently. The current study intends to isolate a strain with the ability to degrade the pH value of the liquid medium. Identification results based on morphological and molecular biological analysis g
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Latyuk, Elena, Vitaliy Melamud, Anatoly Lavrinenko, Dmitriy Makarov, and Aleksandr Bulaev. "Non-Ferrous Metals and PGM Recovery from Low-Grade Copper–Nickel Concentrate by Bioleaching and Further Cyanidation." Minerals 12, no. 3 (2022): 340. http://dx.doi.org/10.3390/min12030340.

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The aim of the present work was to perform copper, nickel, and platinum group metals (PGMs) recovery from low-grade copper–nickel concentrate containing pyrrhotite, pentlandite, and chalcopyrite by bioleaching in stirred tank reactors in batch mode and subsequent cyanidation. The concentrate contained (%) Fe 32.7, Cu 0.7, Ni 2.3, Stotal 20.9, Ssulfide 17, 0.1 g/t Pt, and 1.35 g/t Pd. The bioleaching was performed at 30 and 40 °C using two different microbial consortia. At 30 °C, bioleaching was performed using mixed culture including Acidithiobacillus ferrivorans strains isolated from the samp
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Dissertations / Theses on the topic "Bioleaching"

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Jonglertjunya, Woranart. "Bioleaching of chalcopyrite." Thesis, University of Birmingham, 2003. http://etheses.bham.ac.uk//id/eprint/238/.

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This research is concerned with the bioleaching of chalcopyrite (CuFeS\(_2\)) by Thiobacillus ferrooxidans (ATCC 19859), which has been carried out in shake flasks (250 ml) and a 4-litre stirred tank bioreactor. The effects of experimental factors such as initial pH, particle size, pulp density and shake flask speed have been studied in shake flasks by employing cell suspensions in the chalcopyrite concentrate with the ATCC 64 medium in the absence of added ferrous ions. The characterisation of T. ferrooxidans on chalcopyrite concentrate was examined by investigating the adsorption isotherm an
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Breed, Ashley Wayne. "Studies on the mechanism and kinetics of bioleaching with special reference to the bioleaching of refractory gold-bearing arsenopyrite." Doctoral thesis, University of Cape Town, 2000. http://hdl.handle.net/11427/5356.

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Includes bibliographies.<br>Bioleaching is now an established technology for the leaching of whole-ore copper heaps and the pre-treatment of refractory arsenical gold ores and concentrates. For the case of refractory arsenical gold concentrates, it offers an economically feasible alternative to pressure oxidation and has environmental advantages over roasting with regard to the quality of the liquid and gaseous effluent (Van Aswegen, 1993). The major disadvantage of bioleaching is the low residence time required to achieve high oxidation levels. Other potential complications include the solubi
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Khoshkhoo, Mohammad. "Chalcopyrite Dissolution in Sulphate-Based Leaching and Bioleaching Systems." Licentiate thesis, Luleå tekniska universitet, Mineralteknik och metallurgi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-17698.

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Chalcopyrite (CuFeS2) is the most abundant and the most economically important copper mineral. Increasing worldwide demand for copper accompanied by exhaustion of copper resources necessitate the development of new processes for treating lower-grade copper ores. Heap (bio)leaching of copper oxides and secondary sulphides (covellite (CuS) and chalcocite (Cu2S)) is a proven technology and a convenient process due to its simplicity and relatively low capital investment requirement. As a result, the technology appears to be an attractive process option for treatment of low-grade chalcopyrite ores
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Ogbonna, Nneoma. "Mathematical modelling of agglomerate scale phenomena in heap bioleaching." Master's thesis, University of Cape Town, 2006. http://hdl.handle.net/11427/24385.

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Bioleaching is a naturally occurring process that has been harnessed in metal recovery from low grade ores. The heap bioleaching technique involves complex interactions between chemical reactions, microbial processes and transport processes. The need for efficient heap operations has led to the scientific investigation of heap bioleaching and the development of mathematical models for the process. Over time, the focus of heap leach modelling has moved from models that emphasize particle scale processes to models that emph8size bulk scale processes. In many cases however, the particle scale eff
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Blauth, Pricila Lidiane. "Oxidação da calcopirita (CuFe S'IND.2') por Acidithiobacillus ferooxidans em presença de cisteína e de Acidithiobacillus thiooxidans /." Araraquara : [s.n.], 2008. http://hdl.handle.net/11449/88046.

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Resumo: O processo de biolixiviação é a utilização de bactérias, para a solubilização dos metais presentes em sulfetos minerais. As espécies mais estudadas são o Acidithiobacillus thiooxidans e o Acidithiobacillus ferrooxidans, embora outras espécies também participem do processo. Esse processo é aplicado há muito tempo, mas somente nos anos 1950 a participação de microorganismos foi descoberta. A biolixiviação de cobre é um exemplo de aplicação industrial, embora outros metais como ouro, urânio e o níquel, venham sendo obtidos por esse método. A calcopirita (CuFeS2) é o mais abundante mineral
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Cameron, Rory. "Bioleaching of low-grade nickel sulphide ore at elevated pH." Thesis, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/19784.

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This thesis examines the bioleaching of six different Canadian nickel sulphide ores at pH levels above what is generally considered optimum (~ 2). The majority of work discussed in this thesis was conducted with a low-grade metamorphosed ultramafic nickel sulphide ore from Manitoba, Canada (Ore 3), which is not currently exploitable with conventional technologies. The ore contains 21% magnesium and 0.3% nickel. Nickel is the only significant metal value, and is present primarily as pentlandite. A substantial fraction of the magnesium is present as the serpentine mineral lizardite, making proce
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Potysz, Anna. "Copper metallurgical slags : mineralogy, bio/weathering processes and metal bioleaching." Thesis, Paris Est, 2015. http://www.theses.fr/2015PESC1201/document.

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Les principaux objectifs étaient d'évaluer la stabilité de l'environnement des scories métallurgiques de Cu résultant de différentes périodes d'activités industrielles et de différentes technologies de fusion. Parmi les scories étudiées, on retrouve: les scories historiques cristallines (SH) ainsi que modernes: les scories de four vertical (SFS), les scories granulées (GS) et les scories de plomb (LS). Les différentes approches adoptées dans ce travail de thèse ont tenu compte de: i) la composition chimique et la phase minérale des scories, ii) la sensibilité à la lixiviation des scories sous
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Bouzalakos, Steve. "Controlled Low-Strength Materials Containing Solid Waste from Minerals Bioleaching." Thesis, Imperial College London, 2008. http://hdl.handle.net/10044/1/4265.

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Sustainable treatment and disposal of mine waste is a serious environmental issue faced by the mining industry worldwide. Conventional methods of mine waste management predominantly involve indefinite retention in engineered tailings dams. The cost and liability of such surface storage facilities have increased significantly in recent years as an outcome of stringent environmental legislation and mine closure requirements gradually transforming the economics of mine waste disposal. Backfill methods, particularly cemented paste backfill, are increasingly perceived as sustainable, environmentall
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Nimah, Ulfa. "Investigation of Secondary Reactions in Bioleaching of Nickel Laterite Ores." Thesis, The University of Sydney, 2019. http://hdl.handle.net/2123/21124.

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This thesis investigated the impact of secondary reactions; adsorption and precipitation, on nickel and cobalt recovery from bioleaching of nickel laterite ores. Although bioleaching is considered an ecologically and energy friendly technique to process laterite ores, low recoveries of target metals have inhibited its commercialisation. The secondary reactions occurrence in bioleaching of limonite, fresh and weathered saprolite ores was verified by performing chemical leaching tests using sulphuric and citric acid that would be generated by chemolithotrophs and heterotrophs respectively. The f
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Togamana, Culwick. "The evaluation of the stability of metalliferrous tailings by chemical and microbiological leaching." Thesis, University of Exeter, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388592.

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Books on the topic "Bioleaching"

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Jonglertjunya, Woranart. Bioleaching of chalcopyrite. University of Birmingham, 2003.

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Tuovinen, Olli H. Bioleaching and mineral biotechnology. s.n, 1993.

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Scott, David. Dickenson close to decision on using bioleaching. s.n, 1992.

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Konishi, Yasuhiro. Bioleaching of zinc sulfide concentrate by Thiobacillus ferooxidans. s.n, 1992.

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Zhang, Ruiyong, Tangfu Xiao, Jianyu Zhu, Qian Li, Wolfgang Sand, and Margarete Kalin, eds. Advances in Bioleaching and Bioremediation. Frontiers Media SA, 2022. http://dx.doi.org/10.3389/978-2-88976-716-8.

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Knott, John A. Bioleaching of coal in a fluidized bed. 1989.

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Flett, D. S. The use of micro-organisms in the minerals and metals industry: A technical review series no. 6; 1991. 1995.

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Fisher, David. Recycling of Rare Earths. Materials Research Forum LLC, 2022. http://dx.doi.org/10.21741/9781644901793.

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The recycling of rare earth elements is one of the great challenges for establishing a green economy. Rare earths play an essential role in a great many high-tech products and processes: electronic display screens , computer monitors, cell phones, rechargeable batteries, high-strength magnets, catalytic converters, fluorescent lamps etc. Recycling these materials not only results in valuable materials for new products; it also helps in reducing mountains of discarded products. The recycling methods discussed include bioleaching, biosorption, siderophores, algae and seaweed. carbon-based nanoma
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Book chapters on the topic "Bioleaching"

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Leduc, Leo G., and Garry D. Ferroni. "Bioleaching." In Bioremediation and Sustainability. John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118371220.ch6.

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Sibi, G. "Bioleaching." In Environmental Biotechnology. CRC Press, 2022. http://dx.doi.org/10.1201/9781003272618-10.

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Mathew, Angel, Anna Nova, and Neetha John. "Bioleaching." In Advanced Bioseparation of Industrial Wastes. CRC Press, 2024. https://doi.org/10.1201/9781003415541-3.

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Jiankang, Wen, Chen Bowei, and Xu Kuangdi. "Bioleaching." In The ECPH Encyclopedia of Mining and Metallurgy. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-0740-1_1391-1.

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Schippers, Axel, and Klaus Bosecker. "Bioleaching." In Microbial Processes and Products. Humana Press, 2005. http://dx.doi.org/10.1385/1-59259-847-1:405.

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Jiankang, Wen, and Chen Bowei. "Bioleaching." In The ECPH Encyclopedia of Mining and Metallurgy. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-2086-0_1391.

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Dey, Satarupa. "Bioleaching." In Biohydrometallurgical Processes. CRC Press, 2023. http://dx.doi.org/10.1201/9781003451457-10.

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Hongying, Yang, and Xu Kuangdi. "Tank Bioleaching." In The ECPH Encyclopedia of Mining and Metallurgy. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-0740-1_1405-1.

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Hongying, Yang. "Tank Bioleaching." In The ECPH Encyclopedia of Mining and Metallurgy. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-2086-0_1405.

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Mahajan, Surabhi, Ankur Gupta, and Rajendra Sharma. "Bioleaching and Biomining." In Principles and Applications of Environmental Biotechnology for a Sustainable Future. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1866-4_13.

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Conference papers on the topic "Bioleaching"

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Marinič, Dragica. "Eco-Friendly Bioleaching: Innovative Technology for Extracting Critical Raw Materials From WEEE." In TBMCE, International Conference on Technologies & Business Models for Circular Economy. University of Maribor Press, 2025. https://doi.org/10.18690/um.fkkt.1.2025.9.

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The rapid growth of the quantity of generated electronic waste (e-waste), driven by the increasing demand for electrical and electronic equipment (EEE), has raised urgent concerns regarding its environmental and health impacts. E-waste is the fastest-growing global waste stream, with only a small fraction recycled sustainably. Printed circuit boards (PCBs), a major component of e-waste, contain valuable metals and hazardous substances, complicating recycling efforts. This study explores bioleaching as an environmentally friendly alternative to traditional recycling methods. Bioleaching, utilis
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Konishi, Yasuhiro, Norizoh Saitoh, and Takashi Ogi. "A New Biohydrometallurgical Method for Processing of Deep-Sea Mineral Resources." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79237.

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This paper concentrates on the application of a biohydrometallurgical method for processing deep-sea mineral resources. Bioleaching technologies developed for terrestrial sulfide minerals now can be applied for metal extraction from deep-sea hydrothermal sulfides. However, little attention has been given to the bioleaching of terrestrial oxide minerals. A potentially attractive bioleaching system using the Fe(III)-reducing bacterium has recently been proposed for manganese crusts and nodules. Experimental results obtained from these systems demonstrate that bioleaching is an economical and env
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"Bioleaching of sulfide copper-nickel ores." In Bioinformatics of Genome Regulation and Structure/Systems Biology (BGRS/SB-2022) :. Institute of Cytology and Genetics, the Siberian Branch of the Russian Academy of Sciences, 2022. http://dx.doi.org/10.18699/sbb-2022-294.

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Mo, Xiaolan, Xiang Li, Jiankang Wen, and Liulu Cai. "Column Bioleaching of Fluorine-Bearing Uranium Ore." In 2016 International Forum on Energy, Environment and Sustainable Development. Atlantis Press, 2016. http://dx.doi.org/10.2991/ifeesd-16.2016.177.

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Manimaran, D. R., K. Mithra, M. Keerthana, V. Bharati Priyamvatha, and S. Sivamani. "Bioleaching of valuable metals from e-waste." In THE 8TH ANNUAL INTERNATIONAL SEMINAR ON TRENDS IN SCIENCE AND SCIENCE EDUCATION (AISTSSE) 2021. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0108840.

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Sydykanov, Muratbek, Yerkin Bektay, Gaukhar Turysbekova, Adilkhan Baibatsha, and Gurhan Yalcin. "APPLICATION OF BIOLEACHING OF COPPER FLOTATION TAILINGS." In 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022v/4.2/s18.03.

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The lack of new deposits with a rich copper content and the depletion of old deposits, as well as the need to comply with environmental requirements, raises the issue of the need to process the tailings of metallurgical industries. In Kazakhstan was accumulated significant stocks of tailings "Borgezsay" and "Staroye". The tailings reserves are estimated at up to 1 billion tons. Sample evaluation showed that the average copper content in the tailings is 0.15-0.2%. More than 1 million tons of copper are stored in this tailings. The complexity of the structure of minerals passes through the proce
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Semenchenko, Galina. "BIOLEACHING OF NOBLE METALS FROM REFRACTORY KAZAKHSTANS ORES." In SGEM2011 11th International Multidisciplinary Scientific GeoConference and EXPO. Stef92 Technology, 2011. http://dx.doi.org/10.5593/sgem2011/s12.102.

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Guanghua Ai, Xiuxiang Tao, Xinyang Yu, and Rongbo Shu. "Chalcopyrite bioleaching by A. ferrooxidans and surface passivation." In 2011 International Conference on Remote Sensing, Environment and Transportation Engineering (RSETE). IEEE, 2011. http://dx.doi.org/10.1109/rsete.2011.5966087.

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"Bioleaching of copper-zinc concentrates under different conditions." In Биоинформатика регуляции и структуры геномов / системная биология. ИЦиГ СО РАН, 2024. http://dx.doi.org/10.18699/bgrs2024-8.2-10.

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Vojtkova, Hana. "CADMIUM-RESISTANT BACTERIA AND THEIR APPLICATIONS IN BIOLEACHING PROCESS." In 15th International Multidisciplinary Scientific GeoConference SGEM2015. Stef92 Technology, 2015. http://dx.doi.org/10.5593/sgem2015/b61/s25.042.

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Reports on the topic "Bioleaching"

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Banta, Scott, and Alan West. Co-generation of fuels during copper bioleaching. Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1314992.

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Figueroa-Estrada, Juan Carlos, María Isabel Neria-González, and Ricardo Aguilar-López. Design of a Class of Super Twisting Sliding-mode Controller: Application to Bioleaching Process. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, 2019. http://dx.doi.org/10.7546/crabs.2019.07.13.

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Gazzo, David Vincent, and David W. Reed. Optimization of a Lithium Ion Battery Bioleaching Process Utilizing Organic Acids Produced by Gluconobacter oxydans. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1546738.

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