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Study On The Biosorption Of Synthetic Dyes Using Immobilized Fungal Biomass And Aquatic Weeds | 4679
Journal of Biotechnology & Biomaterials
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The large amount of lignin and lignin-derived compounds are primarily responsible for effluent color, due to the inherent high degree of conjugation in these molecules. There is thus the requirement on industries to minimize environmental release of color considered as toxicologically rather innocuous. Biological treatment is the often the most economical alternatives when compared with other physical and chemical processes.
Biosorption potential of fungal species (Aspergillus niger) and Aquatic weed (Eichhornia crassipes) for synthetic dye
such as Acid- Lanasyn yellow and Direct- Indosol royal blue studied with respect to temperature, time, pH, adsorbent dosage, agitation time and initial dye concentration to determine the kinetic model. The mechanism of dye sorption by Aspergillus niger and Eichhornia crassipes earned good fits for Freundlich and Langmuir models. Further desorption techniques were studies to recover the loaded pollutants. This study has shown the efficiency of A.niger and E.crassipes immobilized into Ca- alginate
beads for the decolourization of synthetic dyes. Batch studies clearly suggest that the high adsorption capacity for the removal of
Acid- Lanasyn yellow and Direct- Indosol royal blue dye were obtained at pH- 6. Up to 86% color removal could be achieved in 31/2 days contact with initial dye concentration (2 to 10 mg/ml), respectively. In addition, it is found to be the reusability of the immobilised A.niger and E.crassipes after storage could be a potential advantage in wastewater treatment.
R. Sivashankar is pursuing his Ph.D at National Institute of Technology. He has published a paper in reputed journal. He holds 2 papers in International Conferences proceedings. He has participated & presented about 13 papers in the International and National conferences. His research areas are Environmental science and technology and Biotechnology.
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