构建了新型浸没式陶瓷平板膜光催化反应器,考察了TiO2投加量、光强、溶液pH、膜孔径等因素对氟苯尼考降解过程的影响,分析了光催化氧化效果、TiO2截留率和膜污染状况.结果表明:当氟苯尼考初始浓度为20 mg/L时,在TiO2投加量为100 mg/L、254 nm紫外灯总功率为450W、溶液初始pH为6.56的条件下,连续运行3h后TOC去除率可达到92.97％;孔径为0.1,1μm的陶瓷膜对TiO2截留率均可达到99％以上,但后者的膜通量衰减率更低.F-、C1-、NO3-、SO42-为降解过程中主要生成的阴离子,由此可初步推测出氟苯尼考矿化过程中阴离子的产生途径.%A submerged ceramic membrane photocatalysis reactor was built and used to study the influences of TiO2 dosage,light int(e)(r)nsity,initial pH value and membrane pore size on the degradation of florfenicol.The effect of photocatalyzed oxidization,retention of TiO2 and membrane pollution condition were also investigated.Results showed that the removal efficiency of TOC reached 92.97％ under the conditions of florfenicol initial concentration of 20 mg/L,TiO2 dosage of 100 mg/L,total power of 254 nm UV lamp of 450 W,initial pH value of 6.56,after three hours' photodegradation.Both pore sizes of 0.1,l μm of ceramic membrane held the TiO2 separation efficiency above 99％,and latter's membrane flux decline rate was lower.F-,Cl-,NO3-and SO42-were found during the process,and the degradation pathway of florfenicol to anions was proposed.
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