摘要
[目的]研究Fenton氧化降解活性艳红X-3B的条件及历程。[方法]利用Fenton氧化工艺,分析3种不同初始浓度的活性艳红X-3B废水的降解条件,同时利用GC-MS对其降解产物及历程进行研究。[结果]当H2O2∶Fe2+(摩尔比)=3.1时,COD去除效果最好,随着Fe2+投加量的增加,废水会变成铁红色,同时沉淀物增加;对于COD分别为200、400和800 mg/L的废水,H2O2投加量分别为0.5、1.0、3.5 ml,废水的初始pH为4～5时,COD的去除率最高。Fenton氧化反应的速度非常快,大部分的降解都发生在初始的5 min之内。[结论]Fenton氧化技术是一种高效降解难降解染料的实用技术。
[ Objective] We aimed to study the degradation conditions and course of reactive brilliant X-3B on the basis of Fenton oxidation. [ Method] By using Fenton oxidation,we studied the degradation conditions of reactive brilliant X-3B wastewater with different initial concen- tration, then analyzed its degradation products and process through gas chromatography-mass spectrometer （GC-MS）. [ Result ] When H2 02： Fe^2＋ （molar ratio） = 3.1, the removal rate of COD was the highest. With the increase of Fe^2＋ usage,the wastewater became red and more deposits generated. As COD of wastewater was 200,400 and 800 mg/L,the usage of H2O2 was 0.5,1.0 and 3.5 ml respectively, and the initial pH of the wastewater was 4 -5,the removal rate of COD reached the maximum values. In addition, Fenton action was very fast, that is, most degradation occurred in the first 5 min difficultly. Fenton oxidation is practical and efficient in the degradation of dyes that are degraded
出处
《安徽农业科学》
CAS
2012年第9期5459-5462,共4页
Journal of Anhui Agricultural Sciences
基金
广东省水环境污染控制重点实验室基金项目(2010009)
