微波强化Fenton氧化法深度处理抗生素废水研究

摘要

The advanced treatment of secondary effluent of antibiotic wastewater has been carried out by microwave-assisted Fenton oxidation process. By means of orthogonal experiments and single factor experiments,the optimal reaction conditions for the advanced treatment by microwave-assisted Fenton oxidation are as follows :pH=3.0-4.0, H2O2 5 mL/L,n (Fe2+) :n (H2O2) =1 =10,microwave power is 625 W. When the COD of the secondary effuent of antibiotic wastewater is 502-516 mg/L,reaction time 6 min.the COD of effluent treated is less than 120 mg/L.the COD removing rate reaches more than 78%. The water quality of treated effluent can meet the requirements of "Discharge Standards of Water Pollutants for Pharmaceutical Industry Fermentation Products Category" (GB 21903-2008).%采用微波强化Fenton氧化法对抗生素废水二级处理出水进行深度处理,通过正交试验和单因素试验得出最佳反应条件为:初始pH为3.0～4.0、H2O2投加量为5 mL/L、n(Fe2+)∶n(H2O2)为1∶10、微波功率为625 W.当抗生素废水二级出水COD为502～516mg/L时,反应时间6min,处理出水COD＜120 mg/L,COD去除率达到78.0％以上,处理后出水水质满足《发酵类制药工业水污染物排放标准》(GB 21903-2008).