THERMODYNAMICS OF CONGO RED DYE ADSORPTION PROCESSES ON MINERAL AND CARBON ADSORBENTS

THERMODYNAMICS OF CONGO RED DYE ADSORPTION PROCESSES ON MINERAL AND CARBON ADSORBENTS

Authors

  • Mansurxon Mehmonxonov Namangan institute of engineering and technology
  • Ergashev Oybek Namangan Institute of Engineering and Technology
  • Abdikamalova Aziza Institute of General and Inorganic Chemistry
  • Bakhronov Khayot Tashkent university of information technologies named after Muhammad al-Khwarizmi
  • Askarova Dilzoda Namangan Institute of Engineering and Technology
  • Xudoyberdiyev N Institute of General and Inorganic Chemistry
  • Xolikov Kamoliddin Institute of General and Inorganic Chemistry

DOI:

https://doi.org/10.61151/stjniet.v9i4.677

Keywords:

adsorption thermodynamics, Congo red dye, steam activated carbon, enriched bentonite, carbon from PET waste, Fe-intercalated bentonite, enthalpy change, entropy change, wastewater treatment, endothermic adsorption

Abstract

This paper investigates the thermodynamic aspects of the adsorption processes of Congo red dye on four different types of adsorbents: steam-activated brown coal, enriched bentonite from Navbahor deposit, carbon based on waste polyethylene terephthalate bottles and Fe-intercalated bentonite. The study focuses on the analysis of enthalpy and entropy changes, which allow to estimate the energy efficiency and spontaneity of the adsorption processes. The results show that the adsorption of the dye is endothermic and is accompanied by a decrease in entropy, which indicates a significant degree of ordering during adsorption. The role of temperature in the efficiency of adsorption processes is emphasized and recommendations for the use of these adsorbents for wastewater treatment are proposed.

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Published

2024-12-27

How to Cite

Mehmonxonov, M., Ergashev, O., Abdikamalova, A., Bakhronov, K., Askarova, D., Xudoyberdiyev, N., & Xolikov, K. (2024). THERMODYNAMICS OF CONGO RED DYE ADSORPTION PROCESSES ON MINERAL AND CARBON ADSORBENTS. Scientific and Technical Journal of Namangan Institute of Engineering and Technology, 9(4), 228–234. https://doi.org/10.61151/stjniet.v9i4.677

Issue

Vol. 9 No. 4 (2024): Scientific and Technical Journal of Namangan Institute of Engineering and Technology

Section

Articles

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