280
D. Brahma and D. Dutta
based on results of COVT experiments. Coded values of +1, 0, and −1 correspond
to high, medium, and low levels of factors.
3 Results and Discussion
3.1 Dye Removal Process in Column Study
Decolorization study was carried out in continuous mode to study efficiency of K.
marina DAGII cells in MG removal. Spectrophotometric analysis of MG removal
showed a single characteristic absorption peak at wavelength of 617 nm as shown
in Fig. 1. From the analysis, no change occurred in the pattern of UV–Vis spectrum
of dye during the decolorization process which suggests that dye did not undergo
degradation to form other toxic metabolites. Similar observations were made by
(Almeida and Corso 2014). Therefore, our results indicate that the removal process
might be controlled by biosorption process.
Fig. 1 Spectral scan of MG removal from 400 to 700 nm with adsorption peak at 617 nm
D. Brahma and D. Dutta
based on results of COVT experiments. Coded values of +1, 0, and −1 correspond
to high, medium, and low levels of factors.
3 Results and Discussion
3.1 Dye Removal Process in Column Study
Decolorization study was carried out in continuous mode to study efficiency of K.
marina DAGII cells in MG removal. Spectrophotometric analysis of MG removal
showed a single characteristic absorption peak at wavelength of 617 nm as shown
in Fig. 1. From the analysis, no change occurred in the pattern of UV–Vis spectrum
of dye during the decolorization process which suggests that dye did not undergo
degradation to form other toxic metabolites. Similar observations were made by
(Almeida and Corso 2014). Therefore, our results indicate that the removal process
might be controlled by biosorption process.
Fig. 1 Spectral scan of MG removal from 400 to 700 nm with adsorption peak at 617 nm