Life Sciences & Biotechnology
Title : | Valorisation of textile effluents for water reuse: Decolourization ,detoxification and denitrification by a chembiotic model approach using fungal consortium |
Area of research : | Life Sciences & Biotechnology |
Principal Investigator : | Dr. Sangeeta Raut, Siksha 'O' Anusandhan, Odisha |
Timeline Start Year : | 2022 |
Timeline End Year : | 2025 |
Contact info : | rautsan.bio@gmail.com |
Equipments : | UV Visible Spectrophotometer |
Details
Executive Summary : | The discharge of textile wastewater into aquatic bodies has severe health and environmental impacts. Textile industries generate huge amounts of effluents containing toxic dyes which are hazardous. After azo dyes, Anthraquinone (AQ) dyes are the second most important class of non-degradable textile dyes whose preparation produces nitrate residues in waste waters. In Spite of their prevalence, the biodegradation of AQ dyes has not been completely deciphered yet, most likely due to the electron-shuttling characteristics of AQ dyes. Therefore, the present proposal depicts a novel economic, simple, less energy-intensive, eco-friendly and sustainable, cutting-edge technology for the degradation and abatement of AQ dyes and nitrates from textile effluents. For sustainable development, our study will explore the dye-degrading potential of indigenous white rot fungus (WRF) to decolorize AQ dyes by employing a chembiotic model approach using entrapped WRF consortium in chitosan beads. The usage of natural support matrix for immobilization of WRF consortium is to increase the shelf-life of WRF and provide treatability solutions to textile effluent for multiple remediation cycles. Moreover, it is hypothesized that the degradation efficiency of such dyes strongly depends upon the ability of the WRF consortium to remove the chromogenic groups of the dyes. Mycoremediation will be utilized to attenuate the toxicity of different AQ dye species and their bio-transformed products. Further, for its pilot/field scale testing, efficiency of AQ degradation and denitrification will be evaluated in a column bioreactor. Thus, focusing on the water scarcity issue, it will provide the reuse of treated water (containing the degraded compounds after biodegradation and de-nitrification as mineral substitutes) for irrigating agricultural crops and thereby reduce the cost of fertilizers for the farmers by 10-20%. The results obtained from this study could therefore be used to improve the treatment processes followed in textile units as well as single dyeing units. |
Total Budget (INR): | 29,49,540 |
Organizations involved