MODELLING AND SIMULATION OF ADSORPTION OF CRUDE OIL CONTAMINATED SOIL

The study used adsorbent pad adsorbents (AP) and chicken feather waste (CFW) for the biosorption of hydrocarbon-contaminated soil. The materials for the adsorbents were obtained locally, processed appropriately, and made ready for the adsorption procedure. Crude oil will be adsorbed from the contaminated soil for analysis at intervals of 0 weeks, 4 weeks, 8 weeks, 12 weeks, 15 weeks, and 20 weeks. Additionally, in a beaker containing the crude oil-polluted soil, 1g, 1.5g, 2g, 3.5g, and 6g of each of the adsorbents (pulverized CFW and PA) were added in turn. Samples were gathered every week in accordance with the investigation of the adsorption process over the course of several weeks. Analysis was done on these samples. They produced Figures 4.1 to 4.4b and Tables 4.1 to 4.5. During the experiment, it was found that two effective adsorbents for the adsorption of crude oil from the soil were absorbent pad (AP) and chicken feather waste (CFW). Pollutants from the soil are strongly attracted to both adsorbents. The strength of crude oil adsorption from the soil was tested using adsorbents produced from chicken feather waste (CFW) and adsorbent pad (AP). Isotherms and kinetics models were applied to the experimental data in order to evaluate and analyze them. In comparison to other kinetics, the results of the evaluations and analysis show that second order kinetic describes the adsorption for both adsorbents in crude oil-contaminated soil, as their coefficient of determination values were highest in ranges of 0.5618-0.9935 and 0.959-0.996, respectively, for 1g-6g masses of adsorbents. To identify the adsorption isotherm model that best describes the adsorption process, the Langmuir, Freundlich, Tempkin, and Elovich isotherms were investigated. The Tempkin isotherm model was found to be the most appropriate isotherm.