The Biological Treatment for Color Removal of Distillery Effluent
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Date
2013
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Uva Wellassa University of Sri Lanka
Abstract
Distillery effluents should treat before disposal into the environment.Spent wash is the major polluting waste of distillery industry.These effuents may cause severe soil and water pollution, specially in aquatic environments. It reduces the sunlight penetration causing decreased photosynthetic activities. Various studies have been carried out on removing these effluents from the water bodies, using physical and chemical methods. But these methods are very hard,could be very expensive and could be destructive to the environment. In this study we used biological method to remove these effluents from aquatic systems which is more economical and environmentally friendly. In this study we planned to remove the colour by using five polyporus fungal species that is commonly found inMatara area. Basidiomycetes decomposing fungi has exhibited extensive bioremediation activities that are mainly based upon their capabilities to produce one or more extracellular lignin-modifying enzymes which have thepotential to decolorize distillery effluent.In this study over the fivepolypores fungal species were collected and cultured. The absorbance was mesuared for seven days, after 5 days incubation period. Results revealed that most of fungal species were removed up to 50% of color.The most efficient color reducing fungal species was fungal "C"
(Lenzites botulin).
Key words: Polyporusfungal, spread plate; streak plate, ligninolitic enzymes, liquid broth
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Mineral Resources and Technology Degree Programme (MRT)