摘要：

在微波催化和热催化比较中，采用相同的加热功率，处理100mL质量浓度为1g/L的甲基橙，试验条件为1g催化剂，1mL质量分数为30％的H₂O₂，0．07gFeSO₄·7H₂O，加热18min，微波催化对甲基橙的COD去除率达到90．1％，而热催化对甲基橙的COD去除率只有73．5％，微波催化明显优于热催化。在微波催化和光催化比较中，在相似的实验条件下，微波催化对低浓度甲基橙加热3min，色度去除率达到近100％，而用光催化要30min才能使去除率达到100％，微波催化明显优于光催化。经过Fe-C预处理，再经过微波催化，染料、炼焦、炼油、餐饮废水处理后主要污染物指标COD达到国家二级排放标准。

关键词: 光催化, 微波催化, 热催化

Abstract:

In the comparison of microwave catalysis oxidation and thermo catalysis oxidation,the same heating power is used.100 mL of methylor ang e is treated,and its concentration is 1g/ L.The experimental conditions areas follows: catalyst1g;H2O2(30%)1mL;FeSO47H2O 0.07 g; heating time 18 min. The COD removal rate of methylorange by microwave catalysis reaches 90. 1%,while the COD removal rate of methylorange by thermo catalysis is only 73.5%.Therefore,microwave catalysisis obviously better than thermo catalysis. In the comparison of microwave catalysis oxidation and photo catalysis oxidation,under similar experimental conditions,methylor ange with low concentration is heated for 3min by microwave catalysis,the chromaticity removal rate is nearly 100%, while by photo catalysis it takes 30 min to make 100% of removal rate.Therefore,microwave catalysisis obviously better than photo catalysis.After being pretreated with Fe-C,and microwave catalysis,the COD of the wastewater from dye stuff, coke and refinery plants and restaurants reaches the second grade of National Discharge Standard.

Key words: photo catalysis, microwave catalysis, thermo catalysis

中图分类号: 

• X703.1