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Adsorption of levofloxacin from aqueous solutions using barley husks

MINAR International Journal of Applied Sciences and Technology, 2025

Abstract

An increasing environmental problem is the presence of human and veterinary antibiotics in surface water.High levels of antibiotics in wastewater have drawn a lot of interest due to their effects on phytoremediation systems.Because antibiotics remain in aquatic environments even in low quantities and are continuously added to them, they are becoming serious pollutants in surface water and groundwater.Antibiotic-resistant bacteria proliferate in the aquatic environment as a result of antibiotic discharge in natural ecosystems.Barley husks, a cheap natural waste adsorbent material, were used in the current study's experimental investigation to remove the antimicrobial Levofloxacin (LEVX) from synthetic wastewater.To determine the optimum adsorption conditions, several batch investigations were conducted.In the batch experiment, the effects of operating parameters such as solution pH, biomass dosage, agitating speed, particle size, temperature, and initial LEVX antibacterial concentration were investigated.The optimum conditions for high removal of LEVX antibacterial from synthetic wastewater were observed at pH 5 for 50 mg/L initial concentration with at particle size 100μm, temperature 40 ℃, and dosage 3.0 g/L.The adsorption process was greatly impacted by the adsorption parameters.The adsorption process was applied successfully with a high removal efficiency of 98% for LEVX under optimal operating conditions.The results indicate that biomass (barley husks) can be used as an…

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