Bioleaching of Aluminum Slags with Thermophilic Bacteria

R.E. Rivera Santillan; F. Patricio Ramirez; V.D. Aguilar Perez

doi:10.4028/www.scientific.net/AMR.1130.414

Paper Titles

Chalcopyrite Bioleaching at High Sulfate Concentrations
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Fluoride Toxicity in Bioleaching of Fluorapatite
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Roles of Oligotrophic Acidophiles (Alicyclobacillus) in Chalcopyrite Bioleaching System: Shake Flask Evaluation
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Bioleaching of Aluminum Slags with Thermophilic Bacteria
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Bioleaching of Copper Sulphide Ore by a Microbial Consortium Isolated from Acid Mine Drainage: Influence of [Fe²⁺]
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Bioleaching vs. Chloride Leaching: Real Advantages and Drawbacks for Primary Sulfides
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The Microbial Ecology of Moderately Thermophilic Mineral Leaching Reactors: The Effect of Solids Loading and Organic Carbon Supplementation on Reactor Performance
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Different Leaching Efficiency and Microbial Community Structure Variation in Chalcopyrite Bioleaching Process Based on Different Initial Microbe Proportions
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1130Bioleaching of Aluminum Slags with Thermophilic...

Bioleaching of Aluminum Slags with Thermophilic Bacteria

Abstract:

The recovery of metallic aluminum from the waste generated in the production of secondary aluminum by bioleaching process using the nutrient medium MKM was investigated. The development of this project was carried out due to the need to treat waste foundry which have a major impact on the environment, using environmentally friendly techniques, such as bioleaching. At work, bioleaching of smelting slag of aluminum generated in the laboratories of the Department of Metallurgy, Faculty of Chemistry, UNAM, was reported. Tests were conducted using thermophilic microorganisms at 70°C in an orbital incubator at natural pH, obtaining metallic clean aluminum, aluminum in solution and salts solution. The pH, bacterial growth and redox potential were monitored daily. We conclude that bioleaching of aluminum slags is feasible. The lack of information about the treatment of this type of industrial waste, makes this research is pioneer in this field.

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Periodical:

Advanced Materials Research (Volume 1130)

Pages:

414-417

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1130.414

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Online since:

November 2015

Authors:

R.E. Rivera Santillan*, F. Patricio Ramirez, V.D. Aguilar Perez

Keywords:

Aluminum Salt Slag, Bioleaching, Foundry, Melting Salts, Potassium Chloride, Sodium Chloride

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