Surface chemical studies on selective separation of pyrite and galena in the presence of bacterial cells and metabolic products of Paenibacillus polymyxa

Patra, Partha ; Natarajan, K. A. (2006) Surface chemical studies on selective separation of pyrite and galena in the presence of bacterial cells and metabolic products of Paenibacillus polymyxa Journal of Colloid and Interface Science, 298 (2). pp. 720-729. ISSN 0021-9797

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00219...

Related URL: http://dx.doi.org/10.1016/j.jcis.2006.01.017

Abstract

Selective separation of pyrite and galena from mixture of the two minerals was achieved through interaction with cells and metabolic products from a culture of Paenibacillus polymyxa. Adsorption of cells and metabolic products onto minerals and electrokinetic studies of minerals after interaction with cells and metabolic products were carried out to examine the resulting surface modification on the mineral surfaces. Flocculation and flotation techniques were successfully applied in the selective separation of minerals after bacterial interaction. The effect of varying conditions for production of extracellular polysaccharides and protein provided an insight into the possible mechanism involved in microbially induced flocculation and flotation of pyrite and galena.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Extracellular Biopolymers; Adsorption; Flocculation; Flotation; Pyrite; Galena
ID Code:24455
Deposited On:29 Nov 2010 08:52
Last Modified:08 Jun 2011 09:02

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