Biosorption of Eriochrome black T (EBT) Onto Waste Tea Powder: Equilibrium and Kinetic Studies

  • Khaled Muftah Elsherif Chemistry Department, Faculty of Science, University of Benghazi
  • Ashraf El-Hashani Chemistry Department, Faculty of Science, University of Benghazi, Benghazi-Libya
  • Kahled Edbey Chemistry Department, Faculty of Science, University of Benghazi, Benghazi-Libya
  • Farah Alfaqih University of Benghazi, Benghazi-Libya
  • Mariam Alomammy University of Benghazi
  • Salima Alomammy University of Benghazi, Benghazi-Libya
Keywords: Biosorption, EBT, Equilibrium and Kinetic study

Abstract

Biosorption of EBT molecules from aqueous solutions onto waste Tea powder (WTP) have been examined in a batch biosorption process. The biosorption procedure was found to be dependent on biosorbent dose, pH of solution, initial dye concentration, and contact time. The experimental equilibrium biosorption data were inspected by Langmuir, Freundlich, Temkin and Dubinin ̶ Radushkevic isotherms models. The Langmuir model gave the best fit by higher correlation coefficient (R2 = 0.997, it assumes as monolayer adsorption). The maximum biosorption capacities determined from the Langmuir isotherm model was 111.11 mg/g, at optimum circumstances. The kinetic studies showed that the biosorption operation of the EBT dye obeyed well pseudo-second-order model. According to the determined biosorption capacity, waste tea powder is considered to be as an effective, low cost, and environmentally friendly biosorbent for the removal of EBT dye from aqueous solutions.

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Author Biographies

Farah Alfaqih, University of Benghazi, Benghazi-Libya

Chemistry Department, Faculty of Science, University of Benghazi, Benghazi-Libya

Mariam Alomammy, University of Benghazi

Chemistry Department, Faculty of Science, University of Benghazi, Benghazi-Libya

Salima Alomammy, University of Benghazi, Benghazi-Libya

Chemistry Department, Faculty of Science, University of Benghazi, Benghazi-Libya

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Published
2018-12-30
How to Cite
Elsherif, K., El-Hashani, A., Edbey, K., Alfaqih, F., Alomammy, M., & Alomammy, S. (2018). Biosorption of Eriochrome black T (EBT) Onto Waste Tea Powder: Equilibrium and Kinetic Studies. To Chemistry Journal, 1(3), 263-275. Retrieved from http://purkh.com/index.php/tochem/article/view/161
Section
Research Articles