Adsorption of Streptomycin on Soil: Effects of pH and the Presence of Cations

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Abstract:

Streptomycin (STR) was the bactericidal antibiotic used extensively in human and veterinary medicine with a high aqueous solubility. In this study, the adsorption of STR on soil was studied as a function of pH, cationic types and ionic strength by using adsorption modeling and bath experiments. Adsorption modeling of the adsorption of STR was better fitted with the Freundlich as compared to the Langmuir. The absorbed STR on soil kept relatively constant at pH 3.5-8 and decreased at pH>8. And the order of cationic influence was CaCl2> NaCl≈KCl> the blank sample for STR sorption capacity, suggesting that the sorption of STR increased as the presence of low concentrations of the cationic. The amount of STR adsorbed was inversely proportional to the logarithmic concentration of the background cations.

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Advanced Materials Research (Volumes 1010-1012)

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10-14

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August 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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