microbial enhanced revery of mineral ore

Microbial surfactant-enhanced mineral oil recovery under ...

Microbial enhanced oil recovery (MEOR) is potentially useful to recover incremental oil from a reservoir being beyond primary and secondary recovery operations. Effort has been made to isolate and characterize natural biosurfactant produced by

microbial enhanced recovery of mineral ore Mining ...

Microbial mineral recovery. 1990 pp. x + 454 pp. ISBN 0-07-007781 biological treatment of gold ores; and microbially enhanced oil recovery.

Microbial enhanced oil recovery - Wikipedia

Microbial enhanced oil recovery (MEOR) is a biological based technology consisting in manipulating function or structure, or both, of microbial environments existing in oil reservoirs.The ultimate aim of MEOR is to improve the recovery of oil entrapped in porous media while increasing economic profits. MEOR is a tertiary oil extraction technology allowing the partial recovery

Methods of Metal Recovery by Microorganisms (2 Methods)

Microbial Recovery of Petroleum: By the conventional technique used in the oil fields, approximately one-third of the oil can be recovered. However, the oil recovery can be enhanced by using solvents, and surfactants. Certain polymers produced by microorganisms (e.g., xanthan gum), when added to oil wells are capable of increasing oil recovery.

Microbes and mineral recovery: Bioleaching of copper, gold ...

Microbes and mineral recovery: Bioleaching of copper, gold and uranium. Dr. Yogender Pal Khasa ... microbial composition and activity - needs to be low to obtain the fastest ... Finely ground mineral concentrate or ore is added to the first tank

microbial enhanced recovery of minerals ores

microbial enhanced recovery of minerals ores : microbial enhanced recovery of mineral ore Mining . Gold recovery from sulfide ores and concentrates was enhanced following from carbonaceous ores yielding 10-50% gold recovery by Microbial Treatment of Lateritic Ni-ore for Iron This study aims at studying effect of anaerobic dissimilatory iron (III) reducing bacterial

Enhanced recovery of silver from Artvin-Kafkasör Ore by ...

Jan 01, 1999  In the Artvin-Kafkasör ore deposit gold and silver are the main precious metals and are associated with quartz and limonite. In the present investigat

Microbial Enhanced Recovery Of Mineral Ore

Microbial Reduction Of Lateritic Nickel Ore For Enhanced. MICROBIAL REDUCTION OF LATERITIC NICKEL ORE FOR ENHANCED RECOVERY OF NICKEL AND COBALT THROUGH BIOHYDROMETALLURGICAL ROUTE The minerals Metals amp Materials Society 2009 pp213224. Read More. On The Recovery Of Hematite From An Iron Ore Fine

microbial enhanced recovery of mineral ore

Microbial surfactant-enhanced mineral oil recovery under ... May 01, 2008 Read "Microbial surfactant-enhanced mineral oil recovery under laboratory conditions, Colloids and Surfaces B: Biointerfaces" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Toward Closing a Loophole: Recovering Rare Earth Elements ...

Nov 16, 2020  Microbial fermentation of sugar produces a variety of organic acids (e.g., acetic, citric, formic, oxalic, and pyruvic) that drive REE leaching and stimulate growth of indigenous microorganisms on the ore, further promoting mineral dissolution.56 The efficiency of REE recovery from microbial phosphate solubilization varies widely depending on ...

Microbial Enhanced Oil Recovery - IntechOpen

3 Microbial Enhanced Oil Recovery Hamid Rashedi 1,2, Fatemeh Yazdian 3,2 and Simin Naghizadeh 1,2 1Department of Chemical Engineering, Faculty of Engineering, University of Tehran, Tehran, 2Research Center for New Technologies in Life Science Engineerin g, University of Tehran, Tehran, 3Department of Life Science Engineering, Faculty of Interdisciplina ry New Sciences and

Fundamental aspects of microbial enhanced oil recovery: a ...

6 Fundamental Aspects of Microbial Enhanced Oil Recovery: A Literature Survey SO 10H 8 H2 S 4H2 O. 2 4 + + → + − + e− (2-2) Some organisms can use ferric ions: Fe3++e−→Fe2+. (2-3) The oxidation potentials corresponding to the first two of these reactions depend on pH, while

Simulation-Based Optimization of Microbial Enhanced Oil ...

Feb 20, 2021  The microbial enhanced oil recovery (MEOR) method is an eco-friendly and economical alternative technology. The technology involves a variety of uncertainties, and its success depends on controlling microbial growth and metabolism. Though a few numerical studies have been carried out to reduce the uncertainties, no attempt has been made to consider temperature, pressure, and salinity in

Microbial Reduction of Lateritic Nickel Ore for Enhanced ...

Microbial Reduction of Lateritic Nickel Ore for Enhanced Recovery of Nickel and Cobalt Through Bio-Hydrometallurgical Route

Microbial recovery of metals from solids FEMS ...

Subjecting refractory gold ore to microbial treatment prior to conventional chemical extraction can substantially increase recovery by promoting biological transformation of the minerals the gold is trapped in [32, 33]. The first bioleaching plant for copper in the United States was opened in 1989 .

Microbial Reduction of Lateritic Nickel Ore for Enhanced ...

MICROBIAL REDUCTION OF LATERITIC NICKEL ORE FOR ENHANCED RECOVERY OF NICKEL AND COBALT THROUGH BIO-HYDROMETALLURGICAL ROUTE L.B. Sukla, B.K. Mishra, N.

New Microbial Approach Advances Enhanced Oil Recovery ...

New Microbial Approach Advances Enhanced Oil Recovery, Well Stimulation and Paraffin Dispersal By Kirk Raney Enhancing oil recovery from mature oil fields is becoming a standard operational procedure in the industry because of the huge volumes of valuable unrecovered oil left behind in reservoirs after primary and secondary recovery processes.

Microbial Leaching (Bioleaching, Biomining ...

Microbial Leaching (Bioleaching, Biomining) Microbial leaching is the process by which metals are dissolved from ore bearing rocks using microorganisms. For the last 10 centuries, microorganisms have assisted in the recovery of copper dissolved in drainage from water.

Toward Closing a Loophole: Recovering Rare Earth Elements ...

Nov 16, 2020  Microbial fermentation of sugar produces a variety of organic acids (e.g., acetic, citric, formic, oxalic, and pyruvic) that drive REE leaching and stimulate growth of indigenous microorganisms on the ore, further promoting mineral dissolution.56 The efficiency of REE recovery from microbial phosphate solubilization varies widely depending on ...

Recent advances in microbial mining SpringerLink

Microbial mining of copper sulphide ores, has been practiced on an industrial scale since the late 1950s. Since then, advances in microbial mining and the role of microorganisms involved in solubilization of metals have assumed commerical importance. The fact that bioleaching processes save energy, have a minimum pollution potential and are able to yield value-added by-products make these ...

MEOR - SlideShare

Nov 23, 2010  MEOR 1. A presentation by:- AbhishekV.Hukkerikar “To be thrown upon one’s own resources, is to be cast into very lap of the future; for our faculties then undergo a development and display an energy of which they were previously unsusceptible.” -Benjamin Franklin

Thermophilic microbial treatment of precious metal ores ...

A method is provided for the recovery of precious metals, such as gold and silver, from refractory sulfidic material and refractory carbonaceous sulfidic material. The sulfidic material is pulped and bioleached using either facultative or obligate thermophiles at temperatures in excess

Bioleaching: metal solubilization by microorganisms FEMS ...

Abstract. Bioleaching is a simple and effective technology for metal extraction from low-grade ores and mineral concentrates. Metal recovery from sulfide minerals is based on the activity of chemolithotrophic bacteria, mainly Thiobacillus ferrooxidans and T. thiooxidans, which convert insoluble metal sulfides into soluble metal sulfates.Non-sulfide ores and minerals can be treated by ...

(PDF) Bioleaching: An Important Approach for Metal ...

Although gold is inert to microbial action, microbes can be used to recover gold from certain types of minerals because as they oxidize the ore, they open its structure, thereby allowing gold ...

Microbial Enhanced Oil Recovery - IntechOpen

3 Microbial Enhanced Oil Recovery Hamid Rashedi 1,2, Fatemeh Yazdian 3,2 and Simin Naghizadeh 1,2 1Department of Chemical Engineering, Faculty of Engineering, University of Tehran, Tehran, 2Research Center for New Technologies in Life Science Engineerin g, University of Tehran, Tehran, 3Department of Life Science Engineering, Faculty of Interdisciplina ry New

Fundamental aspects of microbial enhanced oil recovery: a

6 Fundamental Aspects of Microbial Enhanced Oil Recovery: A Literature Survey SO 10H 8 H2 S 4H2 O. 2 4 + + → + − + e− (2-2) Some organisms can use ferric ions: Fe3++e−→Fe2+. (2-3) The oxidation potentials corresponding to the first two of these reactions depend on pH, while

New Microbial Approach Advances Enhanced Oil Recovery, Well

New Microbial Approach Advances Enhanced Oil Recovery, Well Stimulation and Paraffin Dispersal By Kirk Raney Enhancing oil recovery from mature oil fields is becoming a standard operational procedure in the industry because of the huge volumes of valuable unrecovered oil left behind in reservoirs after primary and secondary recovery processes.

Microbial Reduction of Lateritic Nickel Ore for Enhanced

MICROBIAL REDUCTION OF LATERITIC NICKEL ORE FOR ENHANCED RECOVERY OF NICKEL AND COBALT THROUGH BIO-HYDROMETALLURGICAL ROUTE L.B. Sukla, B.K. Mishra, N. Pradhan, R.K ...

Experimental Studies of In-Situ Microbial Enhanced Oil Recovery

In-Situ Leaching Of Crownpoint, New Mexico, Uranium Ore. III. Laboratory Study Of Strong Leaching Systems: Sodium Hypochlorite ... Potential Microbial Enhanced Oil Recovery Processes: A Critical Analysis. 08ATCE. Biodegradation Of Hydrocarbons As A Mechanism Of Microbial Enhanced Oil Recovery. 16EURO.

Bioleaching: metal solubilization by microorganisms FEMS

Abstract. Bioleaching is a simple and effective technology for metal extraction from low-grade ores and mineral concentrates. Metal recovery from sulfide minerals is based on the activity of chemolithotrophic bacteria, mainly Thiobacillus ferrooxidans and T. thiooxidans, which convert insoluble metal sulfides into soluble metal sulfates.Non-sulfide ores and minerals can be

Recent advances in microbial mining SpringerLink

Microbial mining of copper sulphide ores, has been practiced on an industrial scale since the late 1950s. Since then, advances in microbial mining and the role of microorganisms involved in solubilization of metals have assumed commerical importance. The fact that bioleaching processes save energy, have a minimum pollution potential and are able to yield value-added

Microbial Leaching (Bioleaching, Biomining) - Environmental

Microbial Leaching (Bioleaching, Biomining) Microbial leaching is the process by which metals are dissolved from ore bearing rocks using microorganisms. For the last 10 centuries, microorganisms have assisted in the recovery of copper dissolved in drainage from water.

8 Microbial Leaching of Metals - Wiley-VCH

4 Principles of Microbial Metal Leaching 194 4.1 Leaching Mechanisms 194 4.2 Models of Leaching Mechanisms 194 4.3 Factors Influencing Bioleaching 197 4.4 Bacterial Attachment on Mineral Surfaces 200 5 Microbial Diversity in Bioleaching Environments 200 6 Case Studies of Bioleaching Applications 208 6.1 Commercial-Scale Copper Ore Bioleaching 208

Thermophilic microbial treatment of precious metal ores - Advanced Mineral

A method is provided for the recovery of precious metals, such as gold and silver, from refractory sulfidic material and refractory carbonaceous sulfidic material. The sulfidic material is pulped and bioleached using either facultative or obligate thermophiles at temperatures in excess of about 45° C. and ranging up to about 90° C.

Toward Closing a Loophole: Recovering Rare Earth Elements from

Nov 16, 2020  Microbial fermentation of sugar produces a variety of organic acids (e.g., acetic, citric, formic, oxalic, and pyruvic) that drive REE leaching and stimulate growth of indigenous microorganisms on the ore, further promoting mineral dissolution.56 The efficiency of REE recovery from microbial phosphate solubilization varies widely depending on ...

Effects of ore mineralogy on the microbial leaching of low

within the ore come in contact with the organisms. This can be achieved through grinding of the ore fine enough to liberate the constituent mineral phases prior to microbial attack. However, crushing and grinding of ore is a significant capital and operational cost, and energy-inefficient process (Benzer, 2005; Bilgili and Scarlett, 2005).

(PDF) Microbial Recovery of Nickel and Cobalt from Pre-treated

Recent Research in Science and Technology 2011, 3(6): 28-33 ISSN: 2076-5061 scholarjournals.org recent-science RRST-Microbiology Microbial Recovery of Nickel and Cobalt from Pre-treated Chromite Overburdens of Sukinda Mines using Aspergillus niger Sunil Kumar Behera*, Prangya Parimita Panda and Lala Behari Sukla Institute of Minerals

Simulations of Chemical and Microbial Enhanced Oil Recovery Methods SPE Improved Oil Recovery

Apr 13, 2002  It can model the substrate inhibition, substrate competition, electron acceptor inhibition, abiotic decay, biomass growth, and biomass attachment. We have applied the model to microbial enhanced oil recovery processes by including the capability of permeability reduction due to biomass growth and retention.