| Autor: |
Hussain, M., Chatha, S. A. S., Hussain, A. I., Ahmad, T. |
| Předmět: |
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| Zdroj: |
International Journal of Environmental Science & Technology (IJEST); Jul2023, Vol. 20 Issue 7, p7487-7500, 14p |
| Abstrakt: |
Industrial wastewater treatment is a challenging task and different biopolymer-based materials have been investigated but the choice of material and parametric optimization using statistical tools is scanty. In this research, composite beads synthesized using biochar of Acacia nilotica with chitosan were investigated using response surface methodology for parametric optimization. The prepared beads were showing good stability (Thermogravimetric analysis), amorphous structure (X-ray diffraction), porous surface (Scanning electron microscope) and –OH and –NH2 functional groups (Fourier transform Infrared spectroscopy) on composite playing significant role for adsorption of heavy metals. The adsorption experiments were carried out using the response surface methodology and central composite design three-factor (pH, contact time, adsorbent dose) at five levels. The variation in ANOVA with a p value (< 0.05) indicates model fit for parametric optimization. The optimum conditions for the adsorption process were found as pH-6, 60 min contact time, and 0.5 g adsorbent dose for multi-metals real effluents. Thus, obtained results were showing an excellent removal percentage of metals (Cd 93.21%, Cr 68.67%, Ni 77.02%, and Pb 84.70%) using statistical optimized parametric conditions. It is very reasonable to conclude that the synthesized chitosan combined biochar composite is a promising material for heavy metals contaminated wastewater treatment. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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