摘要
以活性艳红X-3B为研究对象,用4种3d轨道过渡金属离子协同UV作催化剂,以H2O2为氧化剂,探讨不同pH值、不同催化剂和氧化剂投入量对色度、COD去除效果的影响;通过改变温度研究4种过渡金属离子进行催化反应的活化能。结果表明,4种过渡金属离子都能发生类Fenton反应,且对活性艳红X-3B的降解速率模型符合二级反应速率模型,通过对反应速率、体系活化能和指前因子的量化研究,得知催化能力的大小顺序为Fe3+>Cu2+>Ni2+>Co2+;受温度影响的大小程度排序为:Ni2+>Co2+>Cu2+>Fe3+。
Effect of different pH value and catalyst addition amount on decolorization and COD removal rate of reactive brilliant X-3B dyeing wastewater was investigated using four kinds of 3d transition metal inns as a catalyst and hydrogen peroxide as a oxidant. The Activation Energy of Catalyzad reaction with transition metal ions was also discussed under various temperature .The results showed that Fenton-like reaction of four kinds of metal ions used could occur in experiment. Their Biodegradation rates model to brilliant X-3B was coincident with second-order reaction rate model. The order of their catalytic ability is： Fe^3＋〉Cu^2＋〉Ni^2＋〉Co^2＋ and the order of temperature-affecting,Ni^2＋〉Co^2＋〉Cu^2＋〉Fe^3＋.
出处
《水处理技术》
CAS
CSCD
北大核心
2007年第11期45-48,共4页
Technology of Water Treatment
基金
中日合作丰田基金项目(D01-B3-010)
湖南农业大学科技创新基金(040PT02)
