Harnessing microbes to do mining work is called biomining, or sometimes bioextraction or bioleaching. The strategy has been most extensively studied for copper and gold: Colorado-based mining consultant Corale L. Brierley estimates that 10 to 15% of copper and 5% of gold worldwide ...
Modernization of agriculture and mining produces huge quantities of fertilizers and pesticides and releases heavy metals into biogeochemical cycles. T oxic chlorinated compounds released from the ...
Abstract The use of acidiphilic, chemolithotrophic iron- and sulfur-oxidizing microbes in processes to recover metals from certain types of copper, uranium, and gold-bearing minerals or mineral concentrates is now well established. During these processes insoluble metal sulfides are oxidized to soluble metal sulfates. Mineral decomposition is believed …
Introduction The application of bioleaching of metal sulfides (MS) and its understanding have evolved over the last decades. The mobilization of metal cations from often almost insoluble minerals in ores by biological acidification, oxidation, and complexation processes is referred to as bioleaching, and its application is termed …
The first recognized biomining operation was set up within 20 years of the discovery of the first species of bacterium that was demonstrated to catalyze the dissolution of pyrite and other base metal-containing sulfide minerals in acidic liquors [12, 13].In reality, the same biological process had been unknowingly used to extract metals at mine sites …
Microorganisms play dual role in mining & allied industries. Their presence is undesirable during mining operation and are used as remedial measure for treating …
Mine tailings contain finer particles, crushed rocks, dugout-soil, water, and organic and inorganic metals or metalloids, including heavy metals and radionuclides, which are dumped as waste or non-economic by-products generated during mining and mineral processing. These abundant and untreated materials seriously threaten the …
Activeness such as mining, electroplating, metallurgical smelting actions, and agriculture have contaminated wide areas of the world. Microbial resistance and tolerance toward pollutants, particularly heavy metals, are absolutely vital in the bioremediation processes as required microorganisms such as bacteria, fungi …
This review describes the microorganisms and mechanisms involved in commercial biomining operations, how the technology has developed over the past 50 …
India has bountiful reserves of Coal, Iron, Manganese, copper and Lead-Zinc. Mining the same causes generation of a huge volume of waste. Out of the total generated waste, 4.5 million tons are hazardous [7]. Managing waste from mining sulfides, Uranium & Coal poses a potential threat to the ecosystem (tailings, especially) and is an arduous task.
Microbes catalyse the reoxidation of the ferrous ion to ferric (reaction 2), which regenerates the major reactive oxidant in the leaching process, and sulfur to sulfuric acid …
Microbes employee a number of passive and active mechanisms to reduce metal toxicity including, (i) metal influx, (ii) bioreduction, (iii) bioaccumulation, (iv) …
Mining with Microbes Douglas E. Rawlings 1 ·* and Simon Sllver2·* 'Department of Microbiology, University of Cape Town, Rondebosch 7700, South Africa (e-mail: [email protected]); and ...
Open-pit coal mining causes severe damage to the surface ecosystem. Stripping of topsoil in open-pit mining not only destroys the original landscape, soil and plants, but also forms a mine dump that is extremely prone to geological disasters such as landslides and mudslides (Cheskidov and Bobylʼsky, 2017).
11.1. Introduction. The revolution in metal industries worldwide and anthropogenic activities has added significantly large amount of metals into the natural environment leading to hazardous impact on diverse organisms (Manoj et al., 2020).Remediation of metal contaminants using physicochemical techniques is …
Medical image mining is one of the most rewarding and challenging field of application in data mining and knowledge discovery. Soft computing is a consortium of methodologies that provides ...
Request PDF | (Invited) Mining Microbes to Engineer Novel Biosensor Devices | We have developed a strategy for biosensor engineering that leverages an enormous and untapped reservoir for portable ...
Request PDF | Application of Microbes for Metal Extraction from Mining Wastes | A variety of low-grade ore deposits such as copper, nickel, gold, uranium and others available throughout the world ...
The use of acidiphilic, chemolithotrophic iron- and sulfur-oxidizing microbes in processes to recover metals from certain types of copper, uranium, and gold-bearing minerals or mineral concentrates is now well established. During these processes insoluble metal sulfides are oxidized to soluble metal …
A third important area of environmental microbiology has emerged over the past decade, that of molecular ecology. Molecular ecology as it relates to environmental microbiology can be defined as investigating diversity in the environment, and mining and exploiting that diversity for new natural products and activities.
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 …
1. Introduction. At its core, desertification is the insidious transformation of once-productive land into arid, degraded expanses. It manifests predominantly in arid, semi-arid, and dry sub-humid regions, where climatic conditions and anthropogenic activities converge to alter ecosystems dramatically (Yu et al., 2022).The consequences of …
World J Microbiol Biotechnol DOI 10.1007/s11274-015-1880-8 REVIEW Therapeutic cyclic lipopeptides mining from microbes: latest strides and hurdles Seema Patel1 • Shadab Ahmed2 • J. Satya Eswari3 Received: 28 March 2015 / Accepted: 31 May 2015 Ó Springer Science+Business Media Dordrecht 2015 Abstract Infectious diseases impose serious …
Apart from energy crops and residual biomass, the microbial population also play a critical role as a source of bioenergy. Biofuels can make a substantial contribution to the future energy needs and is projected to be even more environmentally friendly than first-generation biofuels, with the potential to reduce greenhouse gas emissions by an …
Request PDF | Use of microbes for cost reduction of metal removal from metals and mining industry waste streams | Acid-rock drainage (ARD) – also known as acid-mine drainage (AMD) – results ...
PDF | Infectious diseases impose serious public health burdens and often have devastating consequences. ... Paenibacillus spp.: a gold mine of antibiotic candidates. Med. Res Rev. doi: 10.1002/med ...
approaches of mining genomes for secondary metabolites, from detecting biosynthetic genes to resistance based methods and "evo-mining" strategies including a short evaluation of the impact of the development of genome mining methods and tools on the field of natural products and microbial ecology. 1. Introduction 2. A short history of ...
Biomining is mineral processing with microbes. Biomining is the process of using microorganisms (microbes) to extract metals of economic interest from rock ores or mine waste. Biomining techniques may also be used to clean up sites that have been polluted with metals. Valuable metals are commonly bound up in solid minerals. Some microbes …
Redundancy analyses suggested that alfalfa revegetation and sludge biochar amendment significantly affected soil microbial community structure, and additive effects on the improvement of soil physicochemical properties as well as increases in the richness and diversity of bacterial and fungal communities were detected. Long-term unregulated …
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