College of Chemical Engineering;
China University of Petroleum;
Qingdao 266580;
Qingdao Oasis Environmental&Safety Technology Co.;
Ltd;
Qingdao 266555;
School of Environmental and Safety Engineering;
Changzhou University;
Changzhou;
213164;
denitrifying ammonium oxidation; sulfamethoxazole; extracellular polymeric substances; total nitrogen;