Micro-pollution of surface water threatens drinking water safety,which has become an increasingly serious issue.The effect of pre-ozonation on the performance of coagulation-ultrafiltration combined process was investigated in terms of effluent quality and membrane fouling in this study.The degradation of natural organic matters via preozonation was discussed based on the 3 D excitation-emission matrix fluorescence spectrum and molecular weight distribution analysis.Results show that humus with large molecu...
Supported by National Natural Science Foundation of China(No.,51638011 and No.,51478314),the National Key Research and DevelopmentProgram of China(No.,2016YFC0400503),the Science and Technology Project of Tianjin(No.,14ZCDGSF00128),and theHebei Province G