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

Mansurxon MehmonxonovNamangan institute of engineering and technologyErgashev OybekNamangan Institute of Engineering and TechnologyAziza AbdikamalovaInstitute of General and Inorganic ChemistryKhayot BakhronovTashkent university of information technologies named after Muhammad al-KhwarizmiDILZODA ASKAROVANamangan Institute of Engineering and TechnologyN XudoyberdiyevInstitute of General and Inorganic ChemistryKamoliddin XolikovInstitute of General and Inorganic Chemistry

2024en

Ochiq kirishOlmos

ABI

Annotatsiya

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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