摘要：

采用气浮/铁碳微电解/Fenton+水解酸化+A/O+接触氧化组合工艺处理农药废水，运行实践表明：当工艺废水平均进水COD、NH₃-N、甲苯质量浓度分别为7 866、56、53 mg/L时，处理出水平均COD、NH₃-N、甲苯质量浓度分别为435、13、0.4 mg/L，平均COD、NH₃-N、甲苯去除率分别为94.5%、81%、99.2%，去除效果明显。经过该工艺处理后，排水水质达到《污水排入城镇下水道水质标准》（GB/T 31962—2015）B级标准。该工艺可为类似农药废水项目设计、建设及运行提供参考。

关键词: 农药废水, 气浮, Fenton, 接触氧化

Abstract:

A combined process of air flotation/iron carbon microelectrolysis /Fenton+ hydrolytic acidification +A/O+ contact oxidation is used to treat pesticide wastewater. The results show that，when the influent COD，NH₃-N and toluene concentrations are 7 866，56 and 53 mg/L，the treated effluent COD，NH₃-N and toluene concentrations are 435，13 and 0.4 mg/L，respectively. The average removal rates of COD，NH₃-N and toluene were 94.5%，81% and 99.2%，respectively. The drainage index reached the Class B standard of Quality Standard for Sewage Discharge into Urban Sewers （GB/T 31962—2015），and the process efficiency was reliable，which can provide reference for the design and construction of similar pesticide wastewater treatment.

Key words: pesticide wastewater, air flotation, Fenton, contact oxidation

中图分类号: 

• X703.1