Use of peanut shell-based polyurethane type rigid foam in removing remazol orange RGB dye from aqueous solution

Authors : Bilal ACEMİOĞLU

Pages : 79-89

Doi:10.32571/ijct.725783

View : 42 | Download : 7

Publication Date : 2020-06-30

Article Type : Research Paper

Abstract :This study reflects the adsorption ability and usable of peanut shell-polyurethane type rigid foam for the removal of remazol orange RGB insert ignore into journalissuearticles values(RO-RGB); dye, a reactive dye, from aqueous solution. RO-RGB removal was studied for initial dye concentrations insert ignore into journalissuearticles values(10-150 mg l-1);, pH values insert ignore into journalissuearticles values(3-9);, and temperatures insert ignore into journalissuearticles values(20-60C); at various contact times. Dye removal increased with the increases in initial dye concentration and temperature while it was decreasing with an increase in pH. Maximum dye removal was determined to be about 98% under all the experimental conditions. Equilibrium data obtained were adapted to the Langmuir, Freundlich, and Temkin isotherm models, and it was seen that the adsorption obeyed the Freundlich isotherm model with determination of coefficient of r2 = 0.966. Kinetics data was found to be harmony with the pseudo-second kinetic order model insert ignore into journalissuearticles values(higher than r2 = 0.9908);. As a result, it was determined that the polyurethane-type rigid foam produced from peanut shell could be used as an alternative to activated carbon and could easily be used as an adsorptive material to remove RO-RGB dye.
Keywords : Peanut shell, polyurethane type rigid foam, remazol orange RGB, removal, adsorption

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