Abstract: Antibiotics in the environment enter the soil mainly through organic additives such as sewage sludge,livestock manure and mud.In order to explore the leaching behavior of tetracycline antibiotics in different sections of soil,the soil column leaching method is utilized to study the leaching behaviors of different initial concentrations of chlortetracycline and doxycycline in different soil profiles (0-30,30-60,60-90 cm),and leachate changes at each soil layer.It is shown that the residual concentrations of both chlortetracycline and doxycycline in the surface layer of soil are larger than that in the middle soil layer,that in the subsoil layer is the fewest.The concentration of antibiotics in the leachate of each soil layer shows a trend of rapidly reaching the peak value and then gradually decreasing,and the leaching characteristics of doxycycline is stronger than that of chlortetracycline.Chlortetracycline and doxycycline both can migrate down to the deep soil,and the higher the concentration of pollutants,the greater the residual concentration in the soil.
肖磊, 王海芳, 张天玑, 赵志峰. 金霉素与强力霉素在不同剖面土壤中的淋溶行为研究[J]. 现代化工, 2021, 41(6): 140-144.
XIAO Lei, WANG Hai-fang, ZHANG Tian-ji, ZHAO Zhi-feng. Leaching behavior of chlortetracycline and doxycycline in different soil profiles. Modern Chemical Industry, 2021, 41(6): 140-144.
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