摘要
过氧化氢受紫外光激发,产生氧化性很强的OH游离基。以活性艳红X-3B为例,研究了影响紫外—过氧化氢法对染料废水脱色的有关因素,表明紫外光强度与H_2O_2浓度对脱色效果影响显著,而染料浓度及废水COD_(Cr)的提高会降低H_2O_2的利用率。通过14种不同类型染料脱色效果的比较,探知该法对脱色对象具有较强的选择性,对单偶氮染料效果最佳。
Initiated by ultraviolet, hydrogen peroxide will produce strong oxidation hydroxyl free-radical. Taking C. I reactive red 2 as example, to study the effects of UV-H2O2 on decolourization of dye wastewater.It showed that the intensity of UV and concentration of H2O2 have significant effects on decolourization, and the concentration of dye and amount of CODcr could reduce the efficiency of H2O2. In comparison with 14 different kinds of dye, showed that this method has strong sensitivity and most effective to azo-dye.
出处
《上海环境科学》
CAS
CSCD
1995年第8期17-20,共4页
Shanghai Environmental Sciences
