Kinetic Modelling of Adsorptive Biodegradation of Anthracene onto Activated Carbon
2022
Ajani, Ayobami Olu | Aworanti, Olufunmilayo Abiola | Hamed, Jimoh Olugbenga | Agarry, Samuel Enahoro | Ogunleye, Oladipo Olaosebikan
The effect of adsorption on anthracene biodegradation in contaminated soil was studied by conducting kinetic batch tests in soil with varying degrees of commercial activated carbon (CAC) and in soil-free solution. The effect of CAC dose on the simultaneous adsorption-biodegradation of anthracene was evaluated. Adsorption-biodegradation model was adopted from the modification of a two-site kinetic numerical model by combining the elements of adsorption and biodegradation models and the validation of the model was carried out through the application of batch adsorption-biodegradation equilibrium and kinetic experimental data. The Result obtained showed that the model predictions of the anthracene concentrations are in reasonable agreement with the experimental data. For simultaneous adsorption-biodegradation of anthracene by CAC, both adsorption rate coefficient and biodegradation rate coefficient increased with increased in CAC dose. The adsorption-biodegradation model is therefore a reasonable tool for simulating the adsorption-biodegradation behaviours of aromatic hydrocarbons in activated carbon.Keywords: Adsorption, Anthracene, Commercial Activated Carbon, Simultaneous Adsorption-Biodegradation.
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