Methylene Blue Removal in Aqueous Solutions with Powdered Activated Carbon and Bentonite


Cengiz C., Levent M.

5th International Congress on Contemporary Scientific Research, Kayseri, Türkiye, 21 - 22 Nisan 2024, sa.8996505, ss.990-1004, (Tam Metin Bildiri)

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Kayseri
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.990-1004
  • Uşak Üniversitesi Adresli: Evet

Özet

Wastewater from the textile sector is extremely polluted, which is extremely dangerous. Important attention needs to be paid in particular to the removal of methylene blue from wastewater, which is used to dye products made of cellulose. In this study, bentonite and powdered activated carbon were utilised. We looked at how methylene blue adsorption was affected by pH, temperature, stirring speed, dye concentration and amount of adsorbent. Studies using isotherms were conducted at various temperatures. The three primary isotherm models were used to study adsorption behaviour. The highest values of adsorption efficiency were found to be 94.32% with bentonite and 99.73% with powdered activated carbon.Adsorption kinetics and thermodynamic analyzes were carried out. According to the calculated data and the obtained graphs, it was determined that the adsorption reaction order was pseudo second order. Thermodynamic analysis of adsorption data was examined. Equilibrium constant, Gibbs free energy, enthalpy and entropy change values were calculated.