IJEP 42(5): 618-623 : Vol. 42 Issue. 5 (May 2022)
Sri Parasakthi College For Women (Autonomous), P.G. and Research Department of Botany, Courtallam – 627 802, Tamil Nadu, India
Affiliated to Manonmaniam Sundaranar University, Abhishekapatti, Tirunelveli district, Tamil Nadu, India
Abstract
The sugar mill effluent was treated with fungal strains, such as Penicillium sp., Aspergillus flavus and Aspergillus niger and immobilized fungal consortium as beads were used for the bioremediation. In this study, maximum reduction in BOD and COD values were observed, that is 56.7% and 62.6% with the effluent inoculated with immobilized culture followed by Aspergillus flavus (40.8%) and Aspergillus niger (50.9%). There was a maximum reduction of total solids (64.4%), total suspended solids (TSS) (70%) and total dissolved solids (TDS) (64.4%) were recorded in sugar mill effluent treated immobilized fungal cultures as compared to the raw effluent which showed 55.5% of total solids, 50% of total suspended solids (TSS) and 56% of total dissolved solids (TDS) on 20 days of bioremediation in sugar mill effluent, respectively. A gradual reduction in removal of salinity from 32% to 41.4% in effluent inoculated with different fungal strains and immobilized cultures during 20 days of incubation/bioremediation with sugar mill effluent as compared to untreated effluent (control) which 27.3% reduction of salinity. Aspergillus flavus remediated sugar mill effluent showed 34.6% of reduction in salinity which was in par with Penicillium species grown in sugar mill effluent (35.9%) on 20th day of incubation.
Keywords
Bioremediation, Sugar mill effluent, Fungal isolates, Physico-chemical parameters, Immobilized beads
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