对三种不同初始浓度的罗丹明B废水进行Fenton氧化降解工艺条件及降解历程进行研究。结果显示:当[H2O2]:[Fe^2+](摩尔比)=3.26的时候,COD去除效果最好,随着[Fe^2+]的投加量增加,废水会变成铁红色,同时沉淀物增加:COD分别为200,300和800mg/L的3种不同浓度的废水,[H202]投加量分别为0.5,0.9,3.5mL,废水的初始pH=3的时候,COD的去除率最好。
Degradation conditions and processes of Rhodmine B using Fenton(Fe^2+/H2O2) reactions was investigated in three different conditions. The results showed that the COD removing rate was the largest at [H2O2] : [FeZ+](molar ratio)=3.26. With the dosage increasing, the wastewater became red and more deposits generated. The COD removing rate was the largest at pH=3, dosages of [H2O2]=0.5, 0.9 and 3.5 mL for three different concentrations(200, 300 and 800 mg/L)wastewater.