Results 21 to 30 of about 2,038 (178)
Comparison of three culture media for one-step and two-step bioleaching of nickel and cadmium from spent Ni-Cd batteries by Aspergillus niger [PDF]
Advances in Environmental Technology, 2020 Among the biological processes, bioleaching is the most widely employed method for metal extraction from electronic waste (e-waste). The purpose of this research was to evaluate the ability of one-step and two-step bioleaching under different culture ...
Tinnapan Netpae, Sawitree Suckley
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Materials, 2023 The leaching of minerals is one of the main unit operations in the metal dissolution process, and in turn it is a process that generates fewer environmental liabilities compared to pyrometallurgical processes. As an alternative to conventional leaching methods, the use of microorganisms in mineral treatment processes has become widespread in recent ...
Manuel Saldaña +6 more
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Microorganisms, 2023 For many years, research on the microbial-dissolution of metals from ores or waste materials mainly focussed on the study of acidophilic organisms.
Chiamaka Belsonia Opara +4 more
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Bioleaching of Copper Concentrate by Indigenous Isolates of Iron and Sulfur-Oxidizing Bacteria from Acid Mine Drainage [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2023 Chalcopyrite is the most abundant copper mineral in the world, and its bioleaching suffers from low dissolution rates, which is often attributed to passivating layers.
Bujinlkham Tuvd +8 more
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Ultrasonics Sonochemistry, 2005 Application of bioleaching of metals in a large-scale operation is reviewed briefly. Continued technical innovation is vital for the wider utilisation of this extraction process within the mineral industries. Therefore, the use of power ultrasound in combination with bioleaching (referred to as sonobioleaching) has been studied and is shown to be ...
K M, Swamy +2 more
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Heliyon, 2018 The purpose of this work was to study the sulfur concentration on bioleaching of heavy metals from pig manure employing indigenous sulfur-oxidizing bacteria.
Xiaocheng Wei +5 more
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Two-Stage Oxidative Leaching of Low-Grade Copper–Zinc Sulfide Concentrate
Microorganisms, 2022 Bioleaching may be effectively used to extract nonferrous metals from sulfide ores and concentrates. At the same time, some minerals are refractory and their bioleaching rate is often comparatively low that does not allow the required metal extraction ...
Aleksandr Bulaev, Vitaliy Melamud
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Effects of Fe3+ and Ag+ on Column Bioleaching of a Low-grade Sulfide Copper Ore
International Journal of Electrochemical Science, 2019 Due to the consumption of high-grade ores and the increasing demand for copper, the utilization of low- grade copper-bearing ores has become a prominent area of research. In this study, column bioleaching was adopted to separate low-grade copper ore. The
Liangyou Jiang +4 more
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BIOLOGICAL LEACHING OF NON-FERROUS METALS FROM COPPER SLAG USING A STRAIN OF SILICATE-SOLUBILISING BACTERIA [PDF]
Sustainable Extraction and Processing of Raw Materials Journal. This study aims at the recovery of non-ferrous metals from pyrometallurgy copper slag enriched in diopside, fayalite, and protomangano-ferro-anthophyllite and containing 0.36 % copper, 1.93 % zinc, and 0.09 % cobalt by bioleaching with silicate ...
Plamen Georgiev +2 more
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Biotechnology Reports, 2014 This study examines the bioleaching of municipal solid waste incineration fly ash by Aspergillus niger, and its effect on the fungal morphology, the fate of the ash particles, and the precipitation of metallic salt crystals during bioleaching. The fungal
Tong-Jiang Xu +2 more
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