Tue, 19 Dec 2017

Evaluating the Potential of Pseudomonas Aeruginosa in the Biodegradation of A Few Dyes

 

Jasmine R*1, Arthy1

1. P.G.Dept of Biotechnology, Bishop Heber College, Trichy 620 017


 

ABSTRACT

Effluent discharge from textile and dyestuff industries to neighbouring water bodies and wastewater treatment systems is currently causing significant health concerns to environmental regulatory agencies. Color removal, in particular, has recently become of major scientific interest, as indicated by the multitude of related research reports. Microbial decolorization and degradation of dyes is seen as a cost-effective method for removing these pollutants from the environment. In this review we have examined biological decolorization of dyes used in textile industries. A simple spectrophotometric assay method was adapted to screen for the ability of Pseudomonas aeruginosa isolates from dye industry effluent to degrade the chosen dyes. They were checked for the extent of dye decolorization [Methyl Red, Methyl Blue & Malachite green] at three different concentrations as 40, 60 & 80ppm. Visual and spec decolonization indicated that decolorization was higher in 60ppm concentration of all three dyes, indicating that to be the optimum concentration for degradation by Pseudomonas aeruginosa isolates. We suggest that the addition of bacterium to the microbial mixture indicated that decolorization was higher in case of dyes in 60 ppm concentration. It can also reduce the bulking problems of the effluent by preventing the load of the organic matter from becoming too high.

Keywords: Pseudomonas aeruginosa; Methyl Red, Methyl Blue; Malachite green; effluent; 


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