Synthetic chemicals from petroleum origins are now coming to a turning point on their hazardous problems to living organisms. In this regard, biosurfactants are well acknowledged as potential constitute for their chemical counter-part due to structural similarities. In this study, the surface activity and frothability of the rhamnolipid product produced from a Pseudomonas aeruginosa strain were measured. Then, frothing behavior of rhamnolipid as a frothing reagent to a sample coal flotation was evaluated. Rhamnolipid was found to have high surface activity and frothing capacity compared to pine oil as conventional frother in coal flotation practices, due to its higher molecular weight and presence of multiple oxygenated groups in its structure. The overall performance of sample coal flotation decreased as rhamnolipid concentration was increased. The decrease in flotation efficiency can be ascribed to probable depressing action of rhamnolipid to coal particles.
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Author Name: Hamid Khoshdast, Vahideh Shojaei
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Keywords: Pseudomonas aeruginosa; Biosurfactant; Frothability; Froth Flotation; Coal
ISSN: 2169-642X
EISSN: 2169-6438
EOI/DOI:
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