Biological mining is an attractive, economical and non-hazardous to recover gold from the low-grade auriferous ore containing waste or soil. This review represents the recent major biological gold retrieval methods used to bio-mine gold.

We also found that metals generated by mining activity may trigger the co-selection of antibiotic resistance in the phyla Actinobacteria and Proteobacteria due to co-resistance or cross resistance. Additionally, PLS-PM analysis revealed that metals could indirectly affect ARGs by influencing bacterial diversity in gold mining areas.

20 November 2023. Microbial miners take on rare-earth metals. As a tech-hungry world gobbles up rare-earth elements, researchers are adapting bacteria that can isolate and …

Statistical correlation techniques have been traditionally employed for mining microbial interaction patterns from taxonomic abundance data corresponding to a given microbial community. In spite of their efficiency, these correlation techniques can capture only 'pair-wise interactions'.

Mine tailing dumps represent significant threats to ecological environments due to the presence of toxic substances. The present work investigated the relationship among microbial activity, the community, antibiotic resistance genes (ARGs) and trace metals in soil surrounding gold mine tailings. Using microbial metabolic activity and high …

Microorganisms employee a number of strategies to survive in metal-rich environments and, as such, play important roles in metal mobilisation and immobilisation. Understanding mineral-metal-microbial interactions will continue to provide novel biotechnological tools to assist innovation in the mining industry.

Here, we indicate that the potential impacts of mining on microbial ecosystem services in the deep sea vary substantially, from minimal expected impact to loss of services that cannot be remedied by protected area offsets.

The aim of this study is to establish a direct step-wise regulation strategy of microbial community structure for further enhancing chalcopyrite bioleaching. First, the initial microbial proportion between Acidithiobacillus ferrooxidans and A. thiooxidans was optimized for faster initiating iron metabolism along with sulfur metabolism.

For bio-oxidative gold recovery, the sulfidic minerals that contain the gold are solubilised by the microorganisms, exposing the gold and making it available for …

Mine tailing dumps represent significant threats to ecological environments due to the presence of toxic substances. The present work investigated the relationship among microbial activity, the community, antibiotic resistance genes (ARGs) and trace metals in soil surrounding gold mine tailings. Usi …

Abstract. Microbial destruction of cyanide and its related compounds is one of the most important biotechnologies to emerge in the last two decades for treating process and tailings solutions at precious metals mining operations. Hundreds of plant and microbial species (bacteria, fungi and algae) can detoxify cyanide quickly to environmentally ...

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.

By modifying a bacterium that finds gold toxic, Frank Reith, a geologist at the University of Adelaide, Australia, has created a microbe with an eye for gold that would put Deadwood's George...

Three major mining and metals companies are exploring potentially useful applications of microbial and genetic engineering techniques in some of the more esoteric areas of biotechnology. Biotechnology is widely known to be a focus of interest in the pharmaceutical and diagnostics industries, but other industries are also investigating biotechnology's …

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Microbial Mining Biotech Private Limited is an unlisted private company incorporated on 08 December, 2020. It is classified as a private limited company and is located in Bangalore, Karnataka.

Semantic Scholar extracted view of "Microbial bioindicators of soil functioning after disturbance: The case of gold mining in tropical rainforests of French Guiana" by H. Schimann et al.

Special 'nugget-producing' bacteria may hold the key to more efficient processing of gold ore, mine tailings and recycled electronics, as well as aid in …

Section 3 describes microbial interactions with key contaminant metals, and then Section 4 reviews how microbial activity has been harnessed in bioremediation technologies to mitigate the impact of mine waste contamination and …

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In the context of an ongoing monitoring study on the impacts of gold-mining activities on critical ecosystem processes, we explored the use of soil De…

A species of bacterium forms nanoscale gold nuggets to help it to grow in toxic solutions of the precious metal, reports a paper published online today in Nature …

Semantic Scholar extracted view of "Deciphering the toxic effects of metals in gold mining area: Microbial community tolerance mechanism and change of antibiotic resistance genes." by Changchun Yan et al.

Microbial 'alchemy' could lead to new ways of detecting and producing the precious metal. Take a solution of gold chloride, a compound toxic to most forms of life. …

Our results also show that legacy pollution from smelting activities is affecting the structure of microbial communities in lake sediments. This study reveals the complex dynamics of Hg cycling in this northern environment, highlighting the importance of large-scale studies in which the effect of multiple pollution gradients (e.g. arsenic and ...

Bacterial mining (biomining) represents the use of microorganisms to leach out metals from ores or mine tailings (wastes), followed by the subsequent recovery of metals of interest from the leaching solution. This leaching of metals from ores is a natural process, which can be considerably accelerated by inducing and/or supporting the …

Microbial destruction of cyanide and its related compounds is one of the most important biotechnologies to emerge in the last two decades for treating process and tailings solutions at precious metals mining operations. Hundreds of plant and microbial species (bacteria, fungi and algae) can detoxify cyanide quickly to environmentally …

Other metals, like gold, are not directly dissolved by this microbial process, but are made more accessible to traditional mining techniques because the minerals surrounding these metals are dissolved and removed by microbial processes.

Through monitoring the copper extraction rate and the dynamics of microbial communities during the bioleaching process, the present study offers an integrate insight into the conjunct effects of biological function and diversity on chalcopyrite bioleaching.

Microbial destruction of cyanide and its related compounds is one of the most important biotechnologies to emerge in the last two decades for treating process and tailings solutions at precious metals mining operations. Hundreds of plant and microbial species (bacteria, fungi and algae) can detoxify cyanide quickly to environmentally …