高压电晕与臭氧联用对不同结构染料脱色效果的比较研究

Combined treatment of ozone and voltage pulsed corona for discoloration of several organic dyes

比较研究了高压电晕与臭氧联用对活性艳红X-3B(单偶氮)、活性艳蓝X-BR(蒽醌)、活性黑KN-GRRC(双偶氮)、酸性红ARL(单偶氮)、酸性蓝BRL(蒽醌)、酸性橙AGT(双偶氮)和分散蓝2BLN(蒽醌)7种染料模拟废水的脱色效果。结果显示,酸性橙AGT模拟废水的脱色速度较慢,而其他6种染料在15min内都能完全脱色,这表明染料结构本身的差异决定了脱色效果;活性染料模拟废水的脱色效果优于酸性染料;蒽醌染料和单偶氮染料模拟废水的脱色效果明显好于双偶氮染料。

The effectiveness of combined ozone and voltage pulsed corona treatment for discoloration of seven organic dyes of three types was compared. The treatment was highly effective since all tested dyes, except Acid Orange AGT, were completely deeolored in 15 min; the decoloring effect was greater for the reactive dyes than the acid dyes and that the anthroquinone and monoazo dyes were better treated than the disazo dye. The overall organic remow al was much slower and less complete than the observed discoloration.