Reaktif Sarı 81 Boyasının Sulu Ortamdan Spirogyra Majuscula ile Uzaklaştırılması; Kinetik ve Denge Modellemesi

Abstract

The removal of Reactive Yellow (RY) 81 from aqueous solution on Spirogyra majuscula was studied as a function of initial dye concentration, contact
time and pH regimes. Change in initial pH values strongly affected (p<0.01) the adsorption of RY 81. Amount of dye uptake increased (p<0.01) with
increasing in the contact time and initial dye concentration. Pseudo second order kinetic model was well to describe the biosorption behavior of this dye.
Experimental data were found to be well fitted to Langmuir, Freundlich and Redlich-Peterson models. Three different error functions were conducted to find
the best model to describe the experimental data. The lower values of error functions exhibited that Freundlich model was the most suitable for the biosorption
of RY 81, which implied a heterogeneous biosorption phenomenon. Results indicated that S. majuscula as effective and natural biosorbent could be used for
textile wastewater treatment without excessive cost.