Effect of Different Microbes on Extraction of Main Elements from Illite

Abstract:

In this investigation, the bioleaching of potassium, silicon and aluminum from natural illite by three strains of Paenibacillus polymyxa , Agrobacterium tumefaciens and Penicillium heteromorphum purchased from China General Microbiological Culture Collection Center was studied. Chemical analyzing investigation indicated that K₂O , SiO₂ and Al₂O₃ were major chemical components. Bioleaching tests were performed in an orbital shaker with 250mL conical flasks at 30°C and 200 r/min agitation. The results show that, In the whole bioleaching process, the maximum extracts of K₂O , SiO₂ and Al₂O₃ are 1.96, 7.96 and 4.57 g/L respectively with Paenibacillus polymyxa, 1.73, 6.9 and 4.19 g/L with Agrobacterium tumefaciens, and 1.68, 6.23 and 7.12 g/L with Penicillium heteromorphum. Paenibacillus polymyxa is the most efficient of releasing K and Si, the most efficient of releasing Al is the strain of Penicillium heteromorphum.

• Periodical: Advanced Materials Research (Volume 773)
• Pages: 322-326
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.773.322
• Online since: September 2013
• Authors: Shou Fa Zhan, Ye Chen, De Si Sun
• Keywords: Agrobacterium Tumefaciens, Bioleaching, Dissolution, Paenibacillus polymyxa, Penicillium Heteromorphum, Release

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