Empirical Equilibrium Study on Rice Husk and Eggshells as Low Cost Bioadsorbent for the Methylene Blue Removal

Abstract:

Eggshells and rice husk, two types of notable agricultural waste were used as bioadsorbent to remove Methylene Blue dye (MBD) in aqueous solution. This study was to investigate the performance of these two bioadsorbents in removing MBD. The removal percentage, adsorption capacity, and porosity characterization were examined. The method applied was a physical filtration. UV-VIS Spectrophotometer was used to determine the efficiency of the bioadsorbents in MBD adsorption. The highest removal percentage at the most concentrated MBD were 51% and 98% for eggshells and rice husks respectively. Meanwhile the characterization of rice husks pore size and volume proves that higher adsorptivity towards dye compares to eggshells porosity. It was concluded that the eggshells and rice husks bioadsorbents was successful to treat industrial textile wastewater with rice husks as the most efficient bioadsorbent in removing MBD.

• Periodical: Applied Mechanics and Materials (Volume 699)
• Pages: 221-226
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.699.221
• Online since: November 2014
• Authors: Nurul Hanim Razak*, Md. Razali Ayob, M.A.M. Zainin, M.Z. Hilwa
• Keywords: Bioadsorbent, Eggshells, Methylene Blue Dye, Rice Husk

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