Supporting information of: “Comparison of the adsorption capacity of acetaminophen on sugarcane bagasse and maize cob by dynamic simulation”

Abstract:

Acetaminophen (ACT), an antipyretic analgesic, is one of the emerging pollutants that has been found in highconcentrations in domestic and hospital wastewaters. This study compared the adsorption capacity of sugarcanebagasse (SB) and corn cob (CC) for the ACT removal through the dynamic simulation of the adsorption column usingAspen Adsorption V10. The effects of flow rate (1.5-3.0 mL min ), ACT initial concentration (40-80 mg L ), and bedheight (20-35 cm) on the breakthrough curves were studied. Finally, the simulation results were validated withexperimental studies, and analyzed by error functions, sum of squared errors (SSE), absolute average deviation(AAD), and coefficient of determination (R ). Based on the pbkp_redicted breakthrough curves, ACT is adsorbed in greaterquantity on CC, with saturation times and adsorption capacity greater than SB in all simulations. The maximumadsorption capacity was 0.47 and 0.32 mg g for CC and SB, respectively, under condition of flow rate of 1.5 mL min , bed height of 25 cm, and ACT initial concentration of 80 mg L . Breakthrough and saturation times were higherwhen the column operated at low flow rates, large bed height, and low ACT concentrations, for both adsorbents. Thepbkp_redicted and experimental breakthrough curves satisfactorily coincided with R values greater than 0.97, SSE andAAD values less than 5% and 0.2, respectively, for all studies. The experimental adsorption capacity was greater forCC than for SB, thus confirming that the software is able to pbkp_redict which adsorbent may be more effective for ACTremoval. The results of this study would speed up the search for effective materials to remove ACT from wastewaters.

Año de publicación:

2020

Keywords:

Fuente:

scopus

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