Study on Removal of Tetracycline Antibiotics by Electrochemical Enhanced Constructed Wetland
Tetracycline antibiotics are difficult to remove by traditional sewage processes due to their stable chemical properties,and are prone to accumulation in water bodies,leading to the emergence of drug resistance problems.Therefore,this study adopted a combination process of biological treatment and electrochemical enhanced constructed wetland to remove tetracycline antibiotics from domestic sewage.We compared the removal efficiency of tetracycline antibiotics by electrolysis,iron carbon microelectrolysis,and electrolysis coupled iron carbon microelectrolysis enhanced artificial wetlands.The experimental results showed that after the biological treatment system,there were still some residues of tetracycline antibiotics,and the biological treatment system had the highest removal rate of oxytetracycline,with a removal rate of 60.29%;After treatment with artificial wetlands,all four antibiotics were effectively removed.The electrolytic coupled iron carbon microelectrolysis enhanced artificial wetlands showed the best removal effect on tetracycline,oxytetracycline,and doxycycline.The biological treatment combined with artificial wetland system achieved the highest removal rates of 71.6%and 71.23%for oxytetracycline and tetracycline,respectively,and could effectively remove doxycycline and chlortetracycline.The electrolytic coupling iron carbon microelectrolysis strengthening effect has a good removal effect on tetracycline antibiotics and has good potential for application and promotion.
万方数据
维普
