• BIOLEACHING OF COBALT FROM MINERAL PRODUCTS

    cobalt gos towards a converter slag. The conventional production of cobalt from copper deposits is uneconomic. For this reason alternative technology must be developed. The objective of the present study was to examine the bioleaching process of two by-products from the Lubin copper mine. The bioleaching data will be fit to a simple

  • Bioleaching: metal solubilization by microorganisms | FEMS ...

    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 ...

  • Table of contents - old-2017.metal.ntua.gr

    Biolixiviation of Cu, Ni, Pb and Zn using organic acids produced by Aspergillus niger and Penicillium simplicissinum Galvez-Cloutier R., Mulligan C., Ouattara A. ... Bioleaching of copper converter slag using A. ferrooxidans Seyed Baghery S.A., Oliazadeh M. ...

  • Bioprocessing of a Low-grade Chalcopyrite Ore by the ...

    Bioprocessing for copper recovery from a lean grade chalcopyrite ore of Malanjkhand Copper Project (MCP) is reported. This ore with 0.3-0.4% copper, which is adjacent to the rich grade ore (09-1.0% Cu), available in large amount is untouched for want of a suitable option, can be utilized to meet the growing demand of the metal in the country.

  • Leaching of copper converter slag with Aspergillus niger ...

    Leaching of copper converter slag of M/s Hindustan Copper Ltd, Ghatshila (Bihar, India) was carried out using Aspergillus niger culture filtrate. The effects of the duration of leaching, temperature, pulp density and the addition of hydrochloric acid were studied.

  • Leaching of copper converter slag with Aspergillus niger ...

    Abstract. Leaching of copper converter slag of M/s Hindustan Copper Ltd, Ghatshila (Bihar, India) was carried out usingAspergillus niger culture filtrate. The effects of the duration of leaching, temperature, pulp density and the addition of hydrochloric acid were studied.

  • lala Behari sukla - Google Scholar Citations

    Their combined citations are counted only for the first article. ... Differential bioleaching of copper by mesophilic and moderately thermophilic acidophilic consortium enriched from same copper mine water sample. ... nickel and copper from converter slag through roasting with ammonium sulphate and sulphuric acid. LB Sukla, SC Panda, PK Jena ...

  • The Influence of the Lead-Zinc Slags Fractional ...

    The possibility of using different groups of microorganisms for the recovery of valuable metals from a variety fraction of lead-zinc waste was investigated. It is found that the bioleaching of zinc-lead wastes of valuable components depends not only on the species of microorganisms, but also on the fractional composition of the waste.

  • Two-Step Bioleaching and Spent Medium Leaching of Gold ...

    Spent medium bioleaching using bacterial cell- free metabolites showed a higher gold recovery of 18%, compared to that of two-step bioleaching of 11% at 0.5% w/v pulp density of ESM. Gold bioleaching was further enhanced to 30% when the pH of the spent medium was increased to shift the equilibrium in favor of cyanide ions production.

  • Metal Leaching of Fly Ash from Municipal Waste ...

    Biological leaching of fly ash from municipal waste incineration by Aspergillus niger was examined in batch cultures and compared with chemical leaching. A. niger grew in the presence of up to 10% (w/v) of fly ash in the medium. In the presence of fly ash A. niger produced gluconate, whereas in its absence citrate was produced. Variation of the fly ash concentration in the growth medium (one ...

  • Manganese-electrolysed slag treatment: bioleaching of ...

    A fungi strain named Fusarium sp. was isolated from manganese-electrolysed slag by using a gradient dilution spread plate method, identified by 26S RNA sequence analysis and phylogenetic tree analysis, and explored for the bioleaching capacity to manganese (II) from manganese-electrolysed slag in liquid mineral medium under different environmental conditions, including system temperature ...

  • Bioleaching of gold, copper and nickel from waste cellular ...

    In an effort to develop alternate techniques to recover metals from waste electrical and electronic equipment (WEEE), this research evaluated the bioleaching efficiency of gold (Au), copper (Cu) and nickel (Ni) by two strains of Aspergillus niger in the presence of gold-plated finger integrated circuits found in computer motherboards (GFICMs) and cellular phone printed circuit boards (PCBs).

  • Prof. Lala Behari Sukla - Google Scholar Citations

    Their combined citations are counted only for the first article. Merged citations. This "Cited by" count includes citations to the following articles in Scholar. The ones marked * may be different from the article in the profile. Add co-authors Co-authors. Upload PDF. PDF Restore Delete Forever.

  • Copper Smelting Process – Furnaces Used, By-Products, and ...

    Modern copper smelters use processed copper ore fed into a flash furnace, typically fired by oxygen which produces blister copper, being further processed in a converter furnace. Molten copper is poured from here into rectangular moulds, the resulting ingots subjected to electrolysis producing a metal of 99.9% purity. Copper can be recycled indefinitely without the base metal being compromised ...

  • Bioleaching of copper converter slag using aspergillus ...

    Bioleaching of copper converter slag of M/S Hindustan Copper Limited, Ghatsila, India, was carried out using a strain of Aspergillus niger isolated from the Sukinda Lateritic Nickel Ore.

  • Aspergillus niger PSSG8 Mediated Bioleaching of Monazite ...

    Aspergillus niger PSSG8 is assisted bioleaching of monazite to recover the constituent metals were investigated. Bioleaching was carried out using Bromfield (BM1/10P & BM-P) and sucrose media (SM1/10P & SM-P) with different levels of Phosphate under rotary and stationary conditions. The growth of the A. niger PSSG8 significantly reduced the media pH to acidic.

  • Open Access Potential impact of microbial consortia in ...

    You're reading Potential impact of microbial consortia in biomining and bioleaching of commercial metals Introduction The use of microorganisms is an old process first introduced in Roman times and perhaps before that. In earlier times, the microbial activity was used by the miners for copper extraction but they were unknown of

  • Bioleaching Behavior of Cu and Co by Aspergillus Niger ...

    Bioleaching Behavior of Cu and Co by Aspergillus Niger Strains from Molasses Culture Aspergillus niger;bioleaching;cobalt;copper; For the recovery of Co and Cu, bioleaching behavior of Co, Cu, Fe, Mg, Al by Aspergillus niger culture from the molasses growth medium was investigated. Series of leaching tests have been conducted by varying Aspergillus niger's type, molasses concentration in …

  • Bioleaching of copper converter slag using ... - MAFIADOC.COM

    Bioleaching of copper converter slag using aspergillus niger isolated from lateritic nickel ore a a L. B. Sukla, R. N. Kar & V. V. Panchanadikar a a Regional Research Laboratory, Bhubaneswar, 751013, Orissa India Version of record first published: 24 Feb 2007

  • Fungal Leaching of Uranium from its Geological Ores in ...

    They were identified as, Aspergillus flavus, Penicillium brevicompactum, P. oxalicum, P. purpurescens, P. lividum, Aspergillus terreus and P. spinulosum. They were tested for bioleaching activity of uranium from its ores, A. terrus and P. spinulosum showed a high leaching activity. The growth of these fungi highly affected by the presence of ...

  • Copper - Wikipedia

    Copper occurs naturally as native metallic copper and was known to some of the oldest civilizations on record. The history of copper use dates to 9000 BC in the Middle East; a copper pendant was found in northern Iraq that dates to 8700 BC.

  • Bioleaching of copper converter slag using Aspergillus ...

    PDF | Bioleaching of copper converter slag of MIS Hindustan Copper Limited, Ghatsila, India, was carried out using a strain of Aspergillus niger isolated from the Sukinda Lateritic Nickel Ore. The ...

  • Tolerance of Chemoorganotrophic Bioleaching Microorganisms ...

    The bioleaching potential of the bacterium Bacillus mucilaginosus and the fungus Aspergillus niger towards industrial residues was investigated by assessing their response towards various heavy metals (including arsenic, cadmium, cobalt, chromium, nickel, lead, and zinc) and elevated pH. The plate diffusion method was performed for each metal to determine the toxicity effect.

  • Leaching and Recovery of Metals | springerprofessional.de

    Leaching and Recovery of Metals. Erstes Kapitel lesen. ... A review of the development and current status of copper bioleaching operations in Chile: 25 years of successful commercial implementation. In: Biomining. ... Metal recovery from secondary copper converter dust by ammoniacal carbonate leaching. US Department of the Interior, Bureau of ...

  • Fungal bioleaching of WPCBs using Aspergillus niger ...

    Jul 01, 2018· In this study, Aspergillus niger (A. niger) as an environmentally friendly agent for fungal bioleaching of waste printed circuit boards (WPCBs) was employed.D-optimal response surface methodology (RSM) was utilized for optimization of the bioleaching parameters including bioleaching method (one step, two step and spent medium) and pulp densities (0.5 g L −1 to 20 g L −1) to …

  • Leaching of copper converter slag with Aspergillus niger ...

    Request PDF on ResearchGate | Leaching of copper converter slag with Aspergillus niger culture filtrate | Leaching of copper converter slag of M/s Hindustan Copper Ltd, Ghatshila (Bihar, India ...

  • Bioleaching of heavy metals from contaminated sediments by ...

    Purpose. The objective of this study was to investigate the bioleaching of heavy metals from contaminated sediments by Aspergillus niger strain SY1. To achieve this, three targets were identified: (1) identify organic acids produced by the isolated A. niger strain SY1 from contaminated sediments, (2) compare the leaching ability and transformation of chemical speciation of heavy metals during ...

  • Recovery of critical metals using ... - PubMed Central (PMC)

    Biomining of primary ores has mainly been practiced for copper, nickel and gold using bio-heap ... Wang Y, Shi Y. Bioleaching mechanism of heavy metals in the mixture of contaminated soil and slag by using indigenous Penicillium chrysogenum strain F1. J Hazard Mater. 2013; 248–249:107–114. Heterotrophic bioleaching by using indigenous ...

  • Tolerance of Chemoorganotrophic Bioleaching Microorganisms ...

    In the last decades, interest in bioleaching, which is the conversion of solid metal values into their aqueous soluble forms using microorganisms, has increased significantly [1, 2]. This technology has been commercialized for some metal ores such as the biooxidation of refractory gold ores and in copper …

  • (PDF) Leaching of copper converter slag withAspergillus ...

    The limited reserve of these the bioleaching of copper converter slag. metals and their high cost in the market requires the The aim o f the present investigation was to leach development of a relatively less expensive process the copper converter slag using A. niger culture for their recovery from slag.