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The Effects of Static Magnetic Field in Leaching Cadmium and Arsenic by Acidthiobacillus ferrooxidans

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Abstract:

In view of the pollution of heavy metals in tailings of mining area, considering some metal recycling, in this paper, the method which was environmental friendly, mild reaction, short process, low energy consumption was applied to leaching As and Cd in tailings. Before leaching, Static Magnetic Field was used to deal with leach liquor, to research the effect of leaching rate for As and Cd. The results showed that under the conditions of pulp density 5%, inoculum 10%, leaching temperature 30°C, pH 2.0, magnetic induction intensity separately were 2mT , 5mT , 8mT and 11mT, the leaching rates of As and Cd were increased respectively about 8% and 2%. Besides, magnetic induction intensity also effected. The best magnetic induction intensity in bioleaching of As and Cd were respectively 2mT and 8mT.

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Periodical:

Applied Mechanics and Materials (Volumes 675-677)

Pages:

90-93

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.675-677.90

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Online since:

October 2014

Authors:

Li Li Lu*, Dong Wei Li, Xiang Dong Wei, Chan Juan Liao, Jiao Lian Jiang, Long Su

Keywords:

Acidthiobacillus ferrooxidans, Effect, Leaching Rate, Static Magnetic Field

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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