This volume is an up-to-date review of advances in the field of biogenic extractive metallurgy, many of great economic and environmental importance. Because certain microorganisms have the ability to metabolize metals and inorganic elements generally, they serve an important role in the leaching of valuable minerals. Now with the advent of genetic …
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Brown LR (2010) Microbial enhanced oil recovery (MEOR). Curr Opin Microbiol 13:316–320. Article CAS PubMed Google Scholar Bryant SL, Lockhart TP (2002) Reservoir engineering analysis of microbial enhanced oil recovery. SPE Reserv Eval Eng 5:365–374. Article CAS Google Scholar
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Nonetheless, microbial enhanced oil recovery (MEOR) is becoming a significant tertiary crude oil recovery method that garnered research attention. Niu et al., [43] explains that MEOR is an enhanced oil recovery technique where microorganisms and their metabolites are used to mobilize residual oil trapped in a reservoir. MEOR is very effective ...
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Here are the answers to your questions: Q1: The most common Enhanced oil recovery (EOR) methods are: - Water flooding (water injection) - Gas injection (not miscible) - Carbon dioxide flooding (miscible) - Steam injection and in-situ burning - Surfacants or s injection - Microbial Enhanced Oil Recovery Methods Q2: The main differences between …
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Microbial enhanced oil recovery (MEOR) is an attractive, alternative oil recovery approach, which is claimed to potentially recover up to 50% of residual oil. ... In the first, oil movement through porous media is facilitated by altering the …
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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 ...
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Such risks have directed attention towards finding environmentally-friendly but economically-feasible alternatives. First noted in 1926, much recent research has focused on the use of microbes and microbial products to enhance oil recovery [2].Microbial enhanced oil recovery (MEOR) applies biotechnology to the problems of the petroleum industry, and …
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from lateritic ore by microbial reductive method. Recent study reported about the use of DIRB (Dissimilatory Iron Reducing Bacteria) in bio-reduction of lateritic chromite overburden (COB) and enhancement in nickel and cobalt recovery. Subse-quent leaching of DIRB pretreated ore by H 2SO 4 results in enhanced recovery of nickel and cobalt.
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6. Tertiary production or Enhanced oil recovery (EOR) • Extraction of residual oil after the primary and secondary phases of production. • Modern and technically advanced methods are employed to either modify the …
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The below mentioned article provides notes on microbial enhanced oil recovery (MEOR). Microbial Enhanced Oil Recovery is the use of microorganisms to retrieve additional oil from existing wells, thereby enhancing the petroleum production of an oil reservoir. In this technique, selected natural microorganisms are introduced into oil wells to produce harmless by-products, …
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Microbial Enhanced Oil Recovery (MEOR) represents a promising frontier in the oil and gas industry, leveraging biotechnology to maximize crude oil extraction while minimizing environmental impacts. This paper investigates the potential of genetically engineered microbes to enhance oil recovery efficiency, reduce ecological footprints, and lower operational costs in …
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Biotechnologically enhanced oil recovery processes, known as microbial enhanced oil recovery (MEOR), involve stimulating indigenous reservoir microbes or injecting specially selected consortia of ...
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Enhanced oil recovery (EOR) techniques are considered due to unimpressive oil recovery, limited oil reserves, and non-applicability of primary recovery methods in some (heavy oil) fields.
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Two groups of microbial assisted recovery processes are discussed: metal mobilization from metal bearing waste, and selective metal separation from leaching solutions by immobilization on microbial biomass. ... 2018; Zhuang et al., 2015). This push to expand research targets both the primary resources represented by ore deposits, but especially ...
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REE recovery from solid resources has been investigated with a wide range of microorganisms, both autotrophic and heterotrophic, and using both pure and mixed microbial cultures [13,14,15]. This review provides an insight into the global situation of REEs and the potential application of microorganisms in the extraction of REEs from industrial ...
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The Bacterial Oxidation (BIOX) process for the pre-treatment of refractory ores for gold recovery developed by Genmin, the mining division of Gencor, has been operating …
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Microbial mineral recovery. 1990 pp. x + 454 pp. ISBN 0-07-007781 … biological treatment of gold ores; … and microbially enhanced oil recovery.
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Microbial enhanced oil recovery utilizes microorganisms and their byproducts to increase oil recovery from depleted reservoirs. It can recover up to 67% of remaining oil compared to 10-40% from water flooding. Microbes produce biosurfactants, biopolymers, and gases that decrease viscosity, increase permeability, and dissolve rocks. While challenging to model, MEOR shows …
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Subsequent leaching of DIRB pretreated ore by H 2 SO 4 results in enhanced recovery of nickel and cobalt. Further work is required to better understand the bioleaching …
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Microbial mineral illization has been investigated for its role in the extraction and recovery of metals from ores. Here we report our application of mineral bioillization for the microbial enhanced oil recovery in low-permeability oil reservoirs. ... and PO43⫺, as well as potassium phosphate to form the siderite [Na3Fe(PO4)(CO3)] (35) and ...
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Effects of residues produced by agricultural wastes fermentation (AWF) on low grade copper sulfide ores bioleaching, copper recovery, and microbial community were investigated. The results indicated that adding appropriate bulk of AWF made contributions to low grade copper sulfide ores bioleaching, which may be mainly realized through reducing the …
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The ultimate aim of MEOR is to improve the recovery of oil entrapped in porous media while increasing economic profits.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 recovery of metals from ...
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Applied electric fields may be used as an electrochemical method to enhance bacterial activity and are currently applied to the recovery of metals from electronic waste, minerals, and electroplating sludge. Wei et al. (2020) studied the enhanced bioleaching of Cu from Electronic waste (E-waste) using a direct current (DC) electric field. They ...
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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 ... (2008) 73–82 Microbial surfactant-enhanced mineral oil recovery under laboratory conditions N.K ...
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In this context, biobeneficiation methods represent new opportunities as viable and sustainable alternatives to conventional iron ore processing by utilizing microorganisms and/or …
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Experimental results demonstrated that ore pre-treated with a mixed thiobacteria culture (Tmix) achieved a 1.40-fold increase in metal recovery compared to direct acid leaching. Additionally, …
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A recovery of the metals might be feasible, which can help to close the presently incomplete cycles of anthropogenic metal usage. The microbial solubilized metals can be recovered by further concentration, cementation, …
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After the close contact of microbes with the mineral ore, sulfide mineral ore gets oxidized by hypothesizing the electrons transferred from the microbial surface during respiration [47] or enzymatic oxidation reactions [48] and solubilizes the mineral ore surface. Still, this mechanism of metal oxidation is in its infancy.
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Biohydrometallurgy recovers metals through microbially mediated processes and has been traditionally applied for the extraction of base metals from low-grade sulfidic ores. New …
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The ore or mineral concentrate is fed into the leaching tank as slurry or pulp and are allowed to mix with an aqueous solution, acting as a solvent. Tank leaching is normally operated as a continuous process but it can also be performed as a batch process. ... Alshehri ANZ (2018) Microbial recovery of gold metal from untreated and pretreated ...
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The first report in this recurring series on microbial processes in the minerals industries was published in 2003 (Olson et al. 2003), followed by an update after 10 years (Brierley and Brierley 2013) with bioleaching and biooxidation of sulfide minerals, primarily copper (in the case of bioleaching) and refractory gold ores (biooxidation) matured to represent …
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A new method of mineral cleavage by microbial pretreatment was ... A good index of 2.89% Li 2 O grade with 71.68% recovery and 0.59% Rb 2 O grade with 80.42% recovery was obtained for the concentrate. Compared to conventional flotation processes, the more efficient release of potassium and desilication through "LM-1" not only avoids the ...
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Microbial enhanced oil recovery (MEOR) attracts broad attention with the advantages of environment-friendliness and low-cost (Wu et al., 2022).Microbial enhanced oil recovery (MEOR) is one of the tertiary oil recovery approaches which uses ex-situ/in-situ microorganisms and their metabolites like biopolymers, biosurfactants, bio-enzymes, …
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The behavior of microbial extracellular electron transfer (EET) processes has attracted considerable attention in recent years because electron exchange processes inevitably influences microbial metabolism, energy conservation, and mineral formation, and contribute to the biogeochemical evolution of the Earth's critical zone – where rock meets life [[1], [2], [3], [4]].
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Structural Modification of Chalcopyrite Ore for Enhanced Copper Recovery Sradhanjali Singh1,4, Bansi Dar Nayak1, Rama Chandra Mohanty3, Swaranjit S. Cameotra2, Lala Beheri Sukla1 and Dong-Jin Kim4,+ 1Institute of Minerals and Materials Technology, Bhubaneswar-13, Orissa, India 2Institute of Microbial Technology, Chandigarh 160036, India 3Utkal University, VaniVihar, …
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Microbial enhanced oil recovery ... (10 Å), indicating that a small amount of Ca-10 was converted into illite minerals by microbial mineralization. According to these phenomena, we found that the crystal size distribution (CSD) of neoformed illite phase is different from that of Ca-10 by microbial reduction. ... and phosphorous ore (FeHPO 4) ...
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