A novel hybrid technology for remediation of molasses-based raw effluents |
| |
Authors: | Verma Ashutosh Kumar Raghukumar Chandralata Naik Chandrakant Govind |
| |
Affiliation: | National Institute of Oceanography (A Constituent Laboratory of Council for Scientific and Industrial Research, New Delhi), Dona Paula, Goa 403004, India |
| |
Abstract: | A novel three-step technology for treatment of four molasses-based raw industrial effluents, varying in their COD, color and turbidity is reported here. Sequential steps involved in this treatment are; (1) sonication of the effluents, (2) whole-fungal treatment of these by a ligninolytic marine fungus and (3) biosorption of the residual color with heat-inactivated biomass of the same fungus. Sonication reduced the foul odor and turbidity of the effluents. It increased biodegradability of the effluents in the second stage of treatment. Laccase production in the presence of all the four effluents was directly correlated with their decolorization. After the third step, a reduction of 60-80% in color, 50-70% in COD and 60-70% in total phenolics were achieved. Comparative mass and nuclear magnetic resonance spectra indicated increasing degradation of the effluent components after each stage. Toxicity (LC50 values) against Artemia larvae was reduced by two to five folds. |
| |
Keywords: | Molasses-based wastewater Sonication Marine-derived fungus Decolorization Detoxification |
本文献已被 ScienceDirect PubMed 等数据库收录! |