Canola Residual as a Biosorbent for Antibiotic Metronidazole Removal

Abstract Significant concerns have been raised over pollution of antibiotics including metronidazole (MNZ) in aquatic environments in recent years. dried Canola biomass is a potential effective absorbent for metronidazole antibiotics and can be used to remove them from aqueous solution. The adsorption isotherm fits Langmuir and Temkin models well, and the theoretical maximum of adsorption capacity calculated by Langmuir model is 21.42 mg/g, which is approximately in a close agreement with the measured data. Higher adsorption percentages were observed at lower concentrations of MNZ and Maximum antibiotic was removed within 90 min after the beginning for every experiment.

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