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Trends in Applied Sciences Research
  Year: 2021 | Volume: 16 | Issue: 1 | Page No.: 1-9
DOI: 10.17311/tasr.2021.1.9
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Adsorption of Indigo-dye from Textile Wastewater onto Activated Carbon Prepared from Sawdust and Periwinkle Shell

Aderonke A. Okoya and Doyinsola Diisu

Background and Objective: Dyeing is the process of adding color to textile products. Many industries use dyes to color their products and thus produce wastewater containing organics with a strong color. This study investigated the use of sawdust and Periwinkle Shells (PS), agricultural wastes to produce adsorbents for Indigo dye adsorption from textile wastewater. Materials and Methods: This study compares the efficiencies of sawdust and PS-based chitosan modified sawdust activated carbons with Commercial Activated Carbon (CAC) and parameters such as dosage, time, initial concentration and pH were optimized. Dye concentrations were determined with UV-Visible spectrophotometer. Langmuir and Freundlich equilibrium models were used to explore adsorbate interaction with adsorbents. Results: Gravimetrical determination of sawdust char and chitosan yielded 4.20 and 68.50%, respectively from sawdust and PS. Rutherford backscattering spectrometric technique resulted in Carbon having highest percentage (42.87) among other elements such as O, Na, Mg, Al, Si, P, S, Cl, K, Ca and Fe. Fourier Transform Infra-Red (FTIR) spectra of chitosan and sawdust activated carbon showed the presence of the relevant functional groups. Optimum adsorption conditions used for the textile wastewater are 0.3 g of dosage, pH of 6 and time of 60 min resulting in optimum efficiencies of 26.83 and 18.5% for Sawdust Activated Carbon (SAC) and chitosan modified SAC respectively but are not significantly different. Conclusion: The study concluded that SAC can be an alternative adsorbent to expensive CAC for Indigo dye removal from aqueous solution while PS is a chitosan rich source.
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How to cite this article:

Aderonke A. Okoya and Doyinsola Diisu, 2021. Adsorption of Indigo-dye from Textile Wastewater onto Activated Carbon Prepared from Sawdust and Periwinkle Shell. Trends in Applied Sciences Research, 16: 1-9.

DOI: 10.17311/tasr.2021.1.9






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