Abstract
Activated carbon animalis was prepared from poultry droppings by H3PO4 and ZnCl2 activation at 5 and 15 minutes dwells time. Four different isotherms were used to model data obtained from adsorption of textile dye from waste water. Applicability of the models followed the trend; Langmuir (R2 = 0.87-0.989) > Radushkevich – Dubinin (R2=0.731-0.973)> Frendhich (R2=0.735-0.967) > Temkin (R2=0.742-0.951). The Langmuir separation factor (RL) revealed thefavorable nature of the adsorption. Samples, activated at longer time with ZnCl2 gave the best quality carbon with high saturation capacity (qD), high mean free energy (ED) and high maximum capacity (qm), but least adsorption energy (BD). Adsorption was majorly monolayer on uniform strategies, with no transmigration of adsobate. The overall results in this assessment indicate that percentage dye removal ranged between 28-63.60%, 38-76.00%, 33.58-50.40% and 24.83-76.00% for pd/A/5, pd/A/15, pd/z/5 and pd/z/15 respectively. This is an indication that, the Poultry waste biomass can be a good precursor for generating adsorbent for uptake of multicomponent organic solute.Keywords: Isotherm modeling, activated carbon, poultry dropping, textile dye
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