Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 6 Issue 4, 2004; Page No.(579-581 )

REMOVAL OF MIXED DYE (PBBMR AND POM2R) USING BACILLUS SP., S4 AND ALKALIGENES SP., S3

M. VASANTHY, M. SANGEETHA AND A. GEETHA

Abstract

The study deals with the identification of bacterial strains resistant to mixed dye Procion orange N12R Procion brilliant blue MR (P0M2R PBBMR). These heterotrophic bacterial strains were isolated from the sampled dyeing industry effluent. The identified bacterial colonies were screened for their resistance to reactive dyes. The selected bacterial strains such as Bacillus sp., (Si, S4, S6). Micrococcus sp. (82, S5), and Alkaligenes sp., (S3) were checked for their efficiency to grow in the aqueous solutions containing different concentrations of Procion Orange M2R and Procion Brilliant Blue MR. The effect of temperature and pH on the growth of selected organisms at 20, 40, 60, 80 and 100 ppm of mixed dye were also found out. The dye biosorption potential of Alkaligenes sp., (S3) and Bacillus sp., (S4) were found to be 100% at 20, 40, 60, 80 & 100 ppm of dye concentration after 72 hrs at pH 6.7 at a temperature 32°C. Thus the present study suggests the suitability of utilising selected bacteri;a1 strains for the decolourisation of the mixed dye namely PBBMR POM2R, Common reactive dyes used for fabric dyeing.

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