Evaluation on the Impact of Flow Rate and Bed Height on the Fixed Bed Adsorption of Methylene Blue Dye, Bismarck Brown Y Dye, and Indigo Blue Dye on to Cedrus Libani (Elizabeth Leaf) Biomass

Abstract

The impact of flow rate and bed height on the adsorption behavior of methylene blue, Bismarck browny, and indigo dyes on to Cedrus libani was investigated. The biomass was characterized by scanning electron microscopy as well as Fourier transformed infrared spectroscopy before and after adsorption to ascertain the functional groups responsible for the adsorption. The amount of dye adsorbed per unit mass of the biomass (qe) was calculated and was found to be dependent on the variables investigated within the experimental range. It was discovered that increase in bed height and flow rate increased the value of the dye adsorbed on to the biomass. The results obtained show that methylene blue dye adsorbed more onto the biomass, while indigo dye adsorbed at the least level.