Sulfadimethoxine is a sulfonamide antibiotic used to treat many infections including treatment of respiratory, urinary tract, enteric, and soft tissue infections and most frequently used in veterinary medicine.
Sulfadimethoxine (SDM) is an antibiotic often used in combination with ormetoprim to prevent the spread of disease in freshwater aquaculture[1]. At antibiotic concentrations between 5 and 7 mg/L, SDM inhibited the growth of anammox bacteria and resulted in a decrease of Candidatus Brocadia abundance from 2.57% to 0.39%[2]. The excess sulfadimethoxine (SDM) in the environment could lead to antibiotic resistance by microorganisms and may do harm to many aquatic organisms. H2PO4- improved the efficiency of SDM removal by KMnO4. Humic acid (0-10 mg L-1) promoted the removal of SDM, which was attributed to the generation of in situ MnO2[3].
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