微电解#8212;Fenton试剂氧化#8212;A/O工艺处理制药废水

摘要: 采用微电解#8212;Fenton试剂氧化#8212;A/O组合工艺处理高浓度制药废水。实验结果表明：经微电解#8212;Fenton试剂氧化工艺预处理后，COD去除率可达50%~60%，BOD5/COD提高到0.3以上；预处理后的废水与清洗废水和生活污水混合，采用生化法进一步处理，出水COD小于100 mg/L，BOD5小于20 mg/L，ρ（NH3-N）小于50 mg/ L，SS小于70 mg/L，满足GB 8978#8212;1996《污水综合排放标准》中的三级排放标准。

关键词: 制药废水；微电解；Fenton试剂氧化；生化处理

Treatment of pharmaceutical wastewater by micro electrolysis Fenton reagent oxidation A/O process

Abstract: The high-concentration pharmaceutical wastewater was treated by a combination process of micro-electrolysis-Fenton reagent oxidation -A/O biotreatment. The experimental results show that：After pretreatment of micro-electrolysis-Fenton reagent oxidation，the COD remove rate is 50%-60%，and BOD5/COD is increased to above 0.3；Mixed with washing wastewater and domestic sewage，the pretreated wastewater is then treated by biological method，the COD，BOD5，ρ（NH3-N），SS of the effluent are less than 100，20，50，70 mg/L respectively，which meet the third grade discharge standard of GB 8978#8212;1996.

Key words: pharmaceutical wastewater；micro-electrolysis；Fenton reagent oxidation；biotreatment