INVESTIGATION ON LEACHING OF COPPER OXIDE ORE BY ENVIRONMENTALLY FRIENDLY METHODS

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SHABANI M.A.; IRANNAJAD M.; AZADMEHR A.R.

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Paper Information

Journal: GEOSCIENCES Year:2015 | Volume:24 | Issue:95 (ENGINEERING & ENVIRONMENTAL GEOLOGY) Page(s): 253-260

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Title

INVESTIGATION ON LEACHING OF COPPER OXIDE ORE BY ENVIRONMENTALLY FRIENDLY METHODS

Author(s)

SHABANI M.A. | IRANNAJAD M. | AZADMEHR A.R. | Issue Writer Certificate

Keywords

COPPER OXIDE OREQ2

BIOLEACHINGQ2

LEACHINGQ2

CITRIC ACIDQ2

HHETEROTROPHIC BACTERIAQ2

PSEUDOMONAS AERUGINOSAQ2

Abstract

COPPER OXIDE OREs are usually leached in sulphuric acid solution. However, it has severe adverse impact on the environment. In this study, BIOLEACHING and LEACHING by CITRIC ACID, as environmentally friendly methods, are investigated. The experiments were carried out on a COPPER OXIDE ORE sample containing copper content of 3.4%. This sample does not contain any energy source to grow the conventional BIOLEACHING microorganisms (like Thiobacillus ferrooxidans and Thiobacillus thiooxidans). This sample was leached by a heterotrophic bacterium, PSEUDOMONAS AERUGINOSA. This bacterium produces organic acids in selected culture medium that operate as LEACHING agents. LEACHING is investigated by CITRIC ACID, as an organic acid produced by this microorganism. The optimum BIOLEACHING conditions were found as: lucose percentage of 6, BIOLEACHING time 8 days and solid/liquid ratio 1:80 and optimum LEACHING conditions as: particle size range105-150μm, acid concentration of 0.2 M, 30 min dissolution time, solid/liquid ratio of 1:20 g/mL and temperature of 40oC. Under optimum BIOLEACHING conditions 53 percent of copper was extracted and copper extraction under optimum LEACHING conditions was 92 percent.

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APA: Copy

SHABANI, M.A., IRANNAJAD, M., & AZADMEHR, A.R.. (2015). INVESTIGATION ON LEACHING OF COPPER OXIDE ORE BY ENVIRONMENTALLY FRIENDLY METHODS. GEOSCIENCES, 24(95 (ENGINEERING & ENVIRONMENTAL GEOLOGY)), 253-260. SID. https://sid.ir/paper/31937/en

Vancouver: Copy

SHABANI M.A., IRANNAJAD M., AZADMEHR A.R.. INVESTIGATION ON LEACHING OF COPPER OXIDE ORE BY ENVIRONMENTALLY FRIENDLY METHODS. GEOSCIENCES[Internet]. 2015;24(95 (ENGINEERING & ENVIRONMENTAL GEOLOGY)):253-260. Available from: https://sid.ir/paper/31937/en

IEEE: Copy

M.A. SHABANI, M. IRANNAJAD, and A.R. AZADMEHR, “INVESTIGATION ON LEACHING OF COPPER OXIDE ORE BY ENVIRONMENTALLY FRIENDLY METHODS,” GEOSCIENCES, vol. 24, no. 95 (ENGINEERING & ENVIRONMENTAL GEOLOGY), pp. 253–260, 2015, [Online]. Available: https://sid.ir/paper/31937/en

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