This study was carried out to find out the qualities of tannery effluents with the assessment of
physicochemical parameters of effluent, isolation, and identification of fungi and their optimization of different
parameters on dye decolorization. In the present study, various physicochemical parameters such as Color, Odor,
pH, EC, TSS, TDS, BOD, COD, Chromium, Copper, Chloride, and Sodium of untreated tannery effluent was
studied. The results of the parameters showed that the effluent was blackish with a disagreeable odor, alkaline in pH
with a high organic and inorganic loads such as EC, TDS, BOD, COD, TSS, Chromium, Copper, Chloride and
Sodium. The physicochemical parameters were determined as per the standards prescribed by CPCB. Four fungal
species were isolated and identified by LPCB staining namely
Aspergillus niger
,
Aspergillus flavus
,
Penicillium citrinum
, and
Curvularia lunata
. To test the activity of these fungi on different dyes, experiments were carried out
for the optimization of different parameters. The maximum decolorization of dye was achieved by
Aspergillus niger.
From this study, it was found that the maximum biotransformation of dye effluent can help to solve the pollution
problem.
