光助Fenton氧化反应降解染料亮绿SF

研究了光助Fenton氧化反应降解染料亮绿SF. 研究内容包括: 亮绿SF的紫外-可见吸收光谱曲线、亮绿SF的浓度-吸光度标准曲线、 Fe2 的用量试验、 H2O2的用量试验、初始pH值对降解效果的影响、不同光源对降解效果的影响、引入阳离子交换树脂作为载体固定Fe2 对降解效果的影响. 通过研究获得了降解亮绿SF染料溶液的优化实验条件. 研究表明, 太阳光照能够有效地促进亮绿SF染料的降解脱色, 且大大缩短反应时间;在引入阳离子交换树脂后, 可增强Fenton氧化反应的活性, 降解效果更好.

The Oxidation Degradation of Great Green SF by Fenton Reagent

Photo-Fenton method,the combination of Fenton reagent with light,is an efficient method for waste water treatment.In the present paper,the degradation of great green SF using this method was studied.Great green SF is a kind of permanent and nondegradable dye.Through numerous experiments,the influences of various parameters including the UV absorption curve of great green dye SF,the concentration-absorbency curve of great green dye SF,dosage of Fe~(2 ),dosage of H_2O_2,initial pH,different light sources,and cation-exchange resin on the degradation were researched intensively.The optimum condition for dye SF degradation was given.(Under) the experiment condition,the sun light can promote this reaction apparently.The reaction time can greatly be shortened too.After the cation-exchange resin was introduced into the Fenton system,the activation of H_2O_2 can be enhanced to a great extent.The dosage of H_2O_2 will be decreased.The degradation effect of the great green SF is better.Under optimal conditions,the overall color removal is more than 96.7% within 40 min;COD can be removed effectively at the same time.