Adsorption Character of Oxytetracycline and the Effects of pH on Adsorption of Oxytetracycline in Soil

Abstract:

Oxytetracycline (OTC) is one of the extensive use antibiotics in livestock. Untreated waste of livestock and poultry breeding discharged into the soil or applied to the soil, directly, lead to pollution of soil in antibiotics. Current antibiotics pollutes caused problem to cause social attention more and more. As soil is the main destination of antibiotics like other pollutants, the antibiotics would eventually be accumulated in the soil when they entered the environment, researching antibiotics in soil migration and diffusion in water environment is important. To analyze environmental risks in antibiotics, and to provide reference basis for antibiotic pollution control, OTC in soil adsorption process and mechanism are conducted. Research showed that first-order kinetic equation model, double constant equation model, and parabolic equation can describe the adsorption process of OTC in soil. Under PH=7 condition, the strongest adsorption and the maximum adsorption capacity are appeared. Adsorption of OTC in soil has a certain mobility, and there are certain security threats in surface water and groundwater environment.

• Periodical: Advanced Materials Research (Volumes 864-867)
• Pages: 179-183
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.864-867.179
• Online since: December 2013
• Authors: Dong Sheng Wang, Yu Chao*, Ting Zhang
• Keywords: Adsorption, Oxytetracycline (OTC), pH, Soil

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