| Autor: |
Sundar, M. Lenin, Aravindan, A., Sujatha, S., Mahendran, S., Kalyani, G., Rahman, D. Zunaithur, Vijayakumar, A., Kumar, M. Senthil |
| Zdroj: |
Biomass Conversion and Biorefinery; February 2023, Vol. 13 Issue: 3 p1889-1903, 15p |
| Abstrakt: |
The present study investigated the potential of biochar synthesized from Caulerpa scalpelliofrmis,a marine seaweed in the decolorization of Reactive Yellow 81 (RY81). The decolorization study was conducted in batch experiments and also in a packed bed column for continuous study. Maximum uptake of 151.5 mg/g was reported in a batch study under optimum conditions. Biosorption isotherm studies were conducted to understand the biosorption mechanism. A correlation coefficient of 0.9998 was obtained for a four-parameter model Fritz-Schlunder – IV. The kinetic study concluded that pseudo-first-order kinetics predicted the experimental data with a correlation coefficient always greater than 0.984. Desorption studies were carried out to find the best elutant, solid to liquid ratio and regeneration cycles. The maximum uptake of 122.48 mg/g was reported in a column study at optimum conditions. Yoon Nelson model predicted the experimental uptake with a correlation coefficient always greater than 0.99 and the % error was always less than 0.11. |
| Databáze: |
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