Abstract
ABSTRACTThe paucity of sorption studies of sulfonylurea herbicide Iodosulfuron has led to the current research for investigation of this imperative phenomena. Iodosulfuron adsorption capacity was evaluated through batch equilibrium experiments in six soil samples collected from distinct geographical regions of Pakistan. Activated carbon prepared from sawdust (Cedrus deodara) was investigated as an economical and sustainable adsorbent for the removal of Iodosulfuron from selected soils. Removal efficiency was studied as a function of contact time and pesticide concentration. Results exhibited a good adsorption capability of Iodosulfuron in different soils. Adsorption coefficient values ranged from 8.9 to 26 mL/g. Soil pH and organic matter greatly influenced the rate of adsorption. The linear adsorption model fitted best with the experimental results. Gibbs free energy values (−17 to −20 kJ/mol) proposed physisorption and exothermic interaction of Iodosulfuron with selected soils. Analysis of variance and regression displayed a negative correlation of soil pH and Kd (R2 = −0.91) and positive correlation with organic matter (R2 = 0.87). A good removal rate for was observed in soils by sawdust-derived activated carbon. Soil properties mainly; pH, organic matter and sand content greatly influenced Iodosulfuron removal phenomena. Biomass-derived activated carbon can thus be utilized as a sustainable remediation tool.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Soil and Sediment Contamination: An International Journal
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
