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
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
CLC Number:
Qiping TIAN, Meng XU, Liang LAI, Liya XU, Feng Zhang, Huaqi YAO. Pesticide wastewater treatment by combination process of air flotation/iron-carbon /Fenton+ hydrolytic acidification+A/O+ contact oxidation[J]. Industrial Water Treatment, 2024, 44(2): 190-193.
田启平, 许猛, 赖亮, 徐丽亚, 张峰, 姚华奇. 气浮/铁碳/Fenton+水解+A/O+接触氧化组合工艺处理农药废水[J]. 工业水处理, 2024, 44(2): 190-193.