micobes in mining pdf
Guidelines for Drinkingwater Quality
Methods of detection of faecal indicator bacteria 143 Identifying local actions in response to microbial water quality problems and emergencies 144 Boil water and water avoidance advisories 144 Actions following an incident 144c
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Effect of Microorganisms on In Situ Uranium Mining ...
A mixed culture of these organisms was inoculated into a uranium core specimen in the laboratory to assess the role of microbes in the plugging problem. A onethird decrease in permeability was effected in 16 days. Hydrogen peroxide ( g liter−1) killed the microorganisms in the core and alleviated the plugging problem.
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Metagenomewide association studies: finemining the ...
Metagenomic shotgun sequencing enables the genetic information of the entire community of microorganisms at a given site to be surveyed. The human microbiome, in particular the human gut microbiome, far exceeds the host in number of genes1–3 and is under intense inves tigation because of its central role in metabolism and immune modulation4–6.
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Biomining A Useful Approach Toward Metal Extraction
Abstract: Biomining is the extraction of specific metals from their ores through biological means usually bacteria. Although it is a new technique used by the mining industry to extract minerals such as copper, uranium and gold from their ores but nowadays biomining occupies an increasingly important place among the available mining technologies.
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Appendix 2: Environmental and Social Impacts of Mining
Acid drainage is one of the most serious environmental impacts associated with mining. It occurs when sulfidebearing minerals, such as pyrite or pyrrhotite, are exposed to oxygen or water, producing sulfuric acid. The presence of acidingesting bacteria often speeds the process. Acidic water may subsequently leach other metals in the rock,
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Acid Mine Drainage Office of Surface Mining
Acid mine drainage (AMD) has been a detrimental byproduct of coal mining for many years. At present, acid mine drainage continues to pose a potential problem in some areas, despite improved prediction and prevention techniques. Acid mine drainage (AMD) has been the .
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Mining microbes: Creating genomic tools to fight disease
Mining microbes: Creating genomic tools to fight disease With DNA sequencing becoming ever cheaper, genomics has become a popular tool to investigate individual microorganisms or
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(PDF) Arsenic resistant bacteria in mining wastes from ...
ENVIRONMENTAL SCIENCE AND TECHNOLOGY 2006 (I) ARSENIC RESISTANT BACTERIA IN MINING WASTES FROM SHANGRAO COAL MINE OF CHINA Jinbo Xiong, Wenming Wang, Haoxin Fan, Lin Cai and Gejiao Wang State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, P. R. of China ABSTRACT: A total of 32 arsenic resistant bacterial strains were isolated and .
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The environmental impact of mine wastes — Roles of ...
ETxE T~ s ELJEr VTER EarthScience Reviews 41 (1996) 67108 The environmental impact of mine wastes Roles of microorganisms and their significance in treatment of mine wastes M. Ledin, K. Pedersen Geborg University, Gundberg Laboratory, Department of General and Marine Microbiology, Medicinaregatan 9C, S413 90 Geborg, Sweden Accepted 27 February 1996 Abstract Mine wastes have .
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Types of Pollution Generated by Gold Mining | Sciencing
Apr 25, 2017· Heavy machinery, strip mining and acid extraction techniques give miners access to the valuable metal, but they can have significant sideeffects. The gold mining and extraction industry creates a wide variety of pollution types, and if not regulated it can devastate any region that's home to veins of the soughtafter ore.
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Isolation, identification and characterization of some ...
extracted from The ores are extracted through mining. The ores are usually rich in iron oxides and vary in colour from dark grey, bright yellow, deep purple, to rusty red. Biomining is a general term used to describe the use of microorganisms to facilitate the extraction of metals from sulfide or ironcontaining ores or
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Bioleaching Application of Biotechnology in Mining Industry
Bioleaching is the process of using microorganisms in mining industry to extract metals in environment friendly and economical processes... In modern mining industry several new processes are used which are easily applicable and economical and environment friendly.
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Acid Mine Drainage Office of Surface Mining
Acid mine drainage (AMD) has been the subject of intensive research since the 1960's. Research efforts have proceeded recently through the Acid Drainage Technology Initiative. The major areas of research on AMD are Prediction of AMD and Prevention/Mitigation. The following is an overview of information on some major acid mine drainage topics.
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Textmining and ontologies: new approaches to knowledge ...
under textmining, which involves the use of automatic language processing and learning methods to finely extract information, categorize it with the reference classification and finally link it to the organism when needed (Nédellec et al. 2009).
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(PDF) Bioleaching: A microbial process of metal recovery ...
Bioleaching: A microbial process of metal recovery; A review. The 'direct' mechanism requires the attachment of bacteria to the sulfide surfaces. In the case of thiobacilli, bacteria secrete exopolymer that facilitates attachment of the bacteria to a metal surface, thus enhancing the leaching rate.
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