Results 1 to 10 of about 6,655 (164)

Improved uranium bioleaching in brackish environments via microbial consortium using RSM based modelling and optimization [PDF]

open access: yesScientific Reports
Bioleaching is a prominent method among eco-friendly techniques. The efficiency of bioleaching is reduced by the presence of brackish water. Moreover, it has been reported that the most successful bioleaching systems are those that include both ...
Maryam Shoja   +3 more
doaj   +2 more sources

Biofilm engineering through c-di-GMP tuning boosts bioleaching efficiency and arsenic tolerance in Acidithiobacillus ferrooxidans [PDF]

open access: yesApplied and Environmental Microbiology
Bioleaching offers a sustainable alternative to conventional metallurgy, but its application is limited by low leaching rates, inhibition by heavy metals, and prolonged adaptation.
Xi Han   +6 more
doaj   +2 more sources

The use of synthetic agonists of quorum sensing N- acyl homoserine lactone pathway improves the bioleaching ability in Acidithiobacillus and Pseudomonas bacteria [PDF]

open access: yesPeerJ, 2022
Metal solubilization from discarded electrical material and electronic devices (e-waste) using the bioleaching capabilities of bacterial cells is highly effective.
Juan Carlos Caicedo   +2 more
doaj   +2 more sources

Overview of fungal bioleaching of metals

open access: yesEnvironmental Advances, 2021
This article has reviewed the progress that has been made in bioleaching research of metals using filamentous fungi. This review has focused on fungal bioleaching from various metal sources, including mine tailings, electronic waste, solid mine wastes ...
Leonce Dusengemungu   +3 more
doaj   +1 more source

A delve into the exploration of potential bacterial extremophiles used for metal recovery [PDF]

open access: yesGlobal Journal of Environmental Science and Management, 2018
A multitude of microbes are involved in the solubilisation of minerals and metals as this approach offers numerous advantages over traditional methods. This strategy is preferred as it is eco-friendly and economical, thus overcoming the drawbacks of the ...
A.S. Deshpande, R. Kumari, A. Prem Rajan
doaj   +1 more source

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]

open access: yesAdvances 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
doaj   +1 more source

Options for Increasing the Rate of Bioleaching of Arsenic Containing Copper Concentrate

open access: yesMicrobiology Research, 2022
In the present work the effect of alkaline sulfide leaching (ASL) on the extraction of copper and zinc from low-grade copper concentrate containing chalcopyrite, tennantite, sphalerite, and pyrite during batch and continuous bioleaching experiments was ...
Alena Artykova   +5 more
doaj   +1 more source

Bioleaching of Copper Concentrate by Indigenous Isolates of Iron and Sulfur-Oxidizing Bacteria from Acid Mine Drainage [PDF]

open access: yesIranian 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
doaj   +1 more source

Interesting Halophilic Sulphur-Oxidising Bacteria with Bioleaching Potential: Implications for Pollutant Mobilisation from Mine Waste

open access: yesMicroorganisms, 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
doaj   +1 more source

Two-Stage Oxidative Leaching of Low-Grade Copper–Zinc Sulfide Concentrate

open access: yesMicroorganisms, 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
doaj   +1 more source

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