摘要
用微波-Fenton氧化法深度处理焦化废水,研究了微波处理时间、微波功率、FeSO4投加量、H2O2投加量、H2O2投加次数和pH值的影响。实验确定的最佳工艺条件为:废水pH为3,FeSO4投加量为300mg/L,H2O2总投加量为900mg/L,H2O2分3次投加,微波功率500W,温度设为50℃,反应时间为30min。废水浊度、色度和COD去除率分别为97.59%、95.62%、86.21%。处理后的废水澄清透明,剩余COD为50.34mg/L,浊度、色度和COD达到工业回用水标准。
This paper studies the influencing factors such as microwave processing time,microwave power,FeSO4 dosing amount,H2 O2 dosing amount,H2 O2 dosing times and pH value during coking wastewater treatment by Microwave - Fenton oxidation. The optimum process conditions are deter-mined by the experiment：pH value of wastewater：3,FeSO4 dosing amount：300mg/ L,H2 O2 total do-sing amount of H2 O2：900mg/ L,H2 O2 dosing times：3,microwave power：500W,temperature：50℃ , reaction time：30min. the removal rate of turbidity,chroma and COD are 97. 59% , 95. 62% and 86. 21% respectively. The wastewater after treatment is clear,and the remaining COD is 50. 34mg / L. The turbidity,chroma and COD meet the requirement of industrial recirculating water standard.
出处
《燃料与化工》
2014年第5期40-43,65,共5页
Fuel & Chemical Processes
关键词
焦化废水
深度处理
工业回用水
Coking wastewater
Deep treatment
Industrial recirculating water
