DSA电极催化氧化法处理制药废水的应用研究

以DSA电极为阳极、钛电极为阴极构成电解池,对抗生素废水进行了催化氧化处理。单因素实验结果表明,当槽电压7.0 V、极板间距1 cm、初始pH=5、进水初始COD 3 000 mg/L、Na Cl投加质量浓度3.0 g、电解时间30 min时,COD去除率可达到49.66%,色度去除率达85.01%。正交试验分析,当槽电压7.0 V、电解时间60 min、初始pH=5、Na Cl投加质量浓度2.5 g/L时,其电解效果最佳,可为该制药废水生化性调节起到良好的作用。

Study on the application of catalytic-oxidation process with DSA electrode to the treatment of pharmaceutical wastewater

Using DSA electrode as anode and titanium electrode as cathode for forming an electrolytic cell,the antibiotic wastewater has been treated by catalytic oxidation method. The results of single-factor experiments show that the COD removing rate is 49.66%and chroma removing rate is 85.01%,when the cell voltage is 7.0 V,plate spacing 1 cm,initial pH 5,influent initial COD 3000 mg/L,NaCl dosage mass concentration 3.0 g/L and electrolysis time 30 min. The orthogonal experiment analysis shows that the electrolysis effect is the best,and can play a good role in adjusting the biochemical quality of pharmaceutical wastewater,when the cell voltage is 7.0 V,electrolysis time 60 min,initial pH 5,and NaCl dosage mass concentration 2.5 g/L.