Adsorption and sugarcane-bagasse-derived activated carbon-based mitigation of 1-[2-(2-chloroethoxy)phenyl]sulfonyl-3-(4-methoxy-6-methyl-1,3,5-triazin-2-yl) urea-contaminated soils

Abstract

Burgeoning pesticide usage in agriculture sector required to be evaluated by assessing the adsorption rate in soils. The herbicide triasulfuron was used in this research to analyze its sorption behavior in seven distinct soils using batch equilibrium methodology. The adsorption coefficient (Kd) values ranged from the 3.32 to 29.7 µg/mL. Peshawar soil displayed the highest Kd value because of the distinct physiochemical properties when compared with the other six samples. Gibbs free energy exhibited negative values displaying less contact between soil particles and pesticides, showing the exothermic nature of the phenomena. A negative association was observed between the pH of the soil samples and Kd (R2 = −0.71) but a direct relation with the organic content (R2 = 0.74). Triasulfuron mitigation was performed by the economical remediation of soils using acid-activated charcoal prepped from Saccharum officinarum husk. Activated carbon derived from biomass displayed the great potential for triasulfuron removal from soils.

Activated carbon derived from sugarcane and modified with natural zeolite for efficient adsorption of methylene blue dye: experimentally and theoretically approaches

“…This finding exhibited that with increasing the carbonization temperature degrees from 500 to 900 o C, the removal of MB decreases. This may be ascribed to the shrinkage and sintering of char at high temperatures (above 500 o C) [13]. Although, elevated temperature favours the formation of pores in carbon, especially when the temperature reaches 500 °C [56].…”

“…The activated carbon has a porous structure which increases the surface area and decreases density. AC is one of the best adsorbents for removing trace contaminants from air, soil, and water due to its strong physical adsorption [13]. This results from the advantages of the AC such as porous properties, high chemical/thermal stability, unique surface area, surface functional groups, and physicochemical nature of AC [14].…”