1. Production of bacterial nanocellulose as green adsorbent matrix using distillery wastes for dye removal: a combined approach for waste management and pollution mitigation.
- Author
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Walling, Bendangtula, Borah, Alimpia, Hazarika, Swapnali, Bharali, Pranjal, Ramachandran, D., Kanagasabai, Viswanathan, Dutta, Nipu, Maadurshni, Gobichettipalayam Balasubramaniam, Manivannan, Jeganathan, Mudoi, Pronab, Kaman, Pranjal Kumar, Sorhie, Viphrezolie, Gogoi, Bhagyudoy, Alemtoshi, Acharjee, Shiva Aley, Vishwakarma, Vinita, and Nath, Palash Deb
- Abstract
The possibility of using stillage of rice beer as a source of carbon for the manufacture of bacterial nanocellulose (BNC) was investigated in this work. 16.434 g L
−1 of BNC was produced by Komagataeibacter saccharivorans NUWB1 using the rice beer stillage along with the other media components of Hestrin-Schramm (HS) medium. Findings showed that obtained BNC possessed dense nano-fibrous network with a signature of cellulose I type, crystallinity index of 86.23%, and higher thermostability up to 380 °C could withstand tensile loads of 68.044 MPa, and exhibited a water holding capacity of 97.53 g g−1 . N2 adsorption-desorption isotherm of the BNC was found to be of type IV, suggesting mesoporous type structure with a total pore volume and surface area of 3.294e-03cc g−1 and 21.065 m2 g−1 . The effectiveness of the BNC in adsorbing the cationic methylene blue dye was investigated. The BNC showed remarkable adsorption capacity against the dye, and resultant data from adsorption studies fit well for the Langmuir isotherm (R2 =0.99) and pseudo-second-order model. According to thermodynamic studies, the adsorption was found to be spontaneous and endothermic. The efficiency of the BNC was also examined in a number of sorption-desorption cycles, which demonstrated its recyclable nature. The present investigation evidently suggests the possibility of valorizing waste distillery stillage into an efficient green sustainable adsorbent material that could find its wide-scale environmental applications. [ABSTRACT FROM AUTHOR]- Published
- 2025
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