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Biological decolourization of simulated azo dye in aqueous phase by algae Spirogyra species

IR@IICT: CSIR-Indian Institute of Chemical Technology, Hyderabad

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Field Value
 
Creator Mohan, S.V
Bhaskar, Y.V
Karthikeyan, J
 
Date 2008-12-15T05:37:25Z
2008-12-15T05:37:25Z
2004
 
Identifier International Journal of Environment and Pollution, Vol.21, 211-222p
http://hdl.handle.net/123456789/45
 
Description Biological decolourization of two azo dye effluents (direct and reactive dye) were investigated using a commonly available green algae Spirogyra sp. in viable form. Batch studies revealed the potential of algal species in removing the dye colour and dye removal was dependant on initial algal inoculum, concentration and application class of the dye. Maximum dye uptake was noticed on the third day for both the dyes. Higher dye uptake was observed in the case of direct red 28 compared to reactive red 2. Dye colour removal by the algal species may be attributed to biosorption of the dye molecules onto the surface of algal cell and subsequent diffusion and participation in metabolism (bioconversion). The remaining dye molecules could be further removed from the aqueous phase by adsorption and/or chelation reaction of the exopolymers released by the algae (biocoagulation). The results of the present study reveal the potential nature of algae in treating azo styles .which in turn can be extended to oxidation pond system of wastewater treatment.
 
Subject Reative dye
Direct dye
Azo dye
Spirogyra species
Biosorption
Biocoagulation
 
Title Biological decolourization of simulated azo dye in aqueous phase by algae Spirogyra species
 
Type Article