蒽醌-2-磺酸钠有机体系光引发自由基降解染料

采用蒽醌-2-磺酸钠有机体系光引发自由基降解废水中的染料。分析了蒽醌-2-磺酸钠有机体系光引发自由基降解的机理,考察了曝气、光照强度和初始染料质量浓度等因素对降解效果的影响。实验结果表明：曝气有利于蒽醌-2-磺酸钠有机体系光引发自由基降解染料；在光照强度1 000 W、初始染料质量浓度50 mg/L的条件下,反应60 min后酸性蓝80溶液的脱色率可达100%；在酸性红249、酸性黄42、酸性蓝80、活性艳红KD-8B、活性黄K-6G和活性翠蓝K-NG 6种商用酸性和活性染料中,蒽醌-2-磺酸钠有机体系对活性黄K-6G和活性艳红KD-8B的脱色率最高,对酸性蓝80和活性翠蓝K-NG的脱色率最低。

Degradation of Dyes by Photo-Initiated Free Radicals from Anthraquinone-2-Sulfonate Organic System

The free radicals photo-initiated from anthraquinone-2-sulfonate organic system were used in the degradation of dyes in wastewater. The degradation mechanism was analyzed,and the factors affecting the degradation effects were studied. The experimental results show that：Aeration can improve the degradation of dyes；Under the conditions of light intensity 1 000 W,initial dye mass concentration 50 mg/L?and reaction time 60 min,the decoloration rate of acid blue 80 solution can reach 100%；Among 6 kinds of commercial dyes,such as acid red 249,acid yellow 42,acid blue 80,reactive red KD-8B,reactive yellow K-6G and reactive blue K-NG,the decoloration rates of reactive yellow K-6G and reactive red KD-8B are the highest,and those of acid blue 80 and reactive blue K-NG are the lowest.