期刊
JOURNAL OF INORGANIC BIOCHEMISTRY
卷 152, 期 -, 页码 154-159出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jinorgbio.2015.08.022
关键词
Bioleaching; Aluminium; Red mud; Filamentous fungi
资金
- Scientific Grant Agency of the Ministry of Education, Science, Research and Sport of the Slovak Republic
- Slovak Academy of Sciences under VEGA [1/0203/14, 1/0836/15]
This contribution investigates the efficient and environmentally friendly aluminium leaching from red mud (bauxite residue) by 17 species of filamentous fungi. Bioleaching experiments were examined in batch cultures with the red mud in static, 7-day cultivation. The most efficient fungal strains in aluminium bioleaching were Penicillium crustosum G-140 and Aspergillus niger G-10. The A. niger G-10 strain was capable to extract up to approximately 141 mg.L-1 of aluminium from 0.2 g dry weight red mud. Chemical leaching with organic acids mixture, prepared according to A. niger G-10 strain's respective fungal excretion during cultivation, proved that organic acids significantly contribute to aluminium solubilization from red mud. (C) 2015 Elsevier Inc. All rights reserved.
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