摘要
以各种水溶性染料,包括直接染料、酸性媒介染料、活性染料的废水为实验对象,系统研究了新生态MnO2在染料废水脱色过程中的作用。结果表明,受试染料的脱色效果均十分显著,最佳pH≤2.5,脱色作用的机理在于MnO2的表面羟基在酸性条件下发生质子化,可以与阴离子染料以库仑力结合而将其吸附除去。
To study the characteristics of fresh MnO_(2) for decolorization of different soluble dyes, experiments were conducted to treat water containing direct dyestuff, acid mordant and reactive dyestuffs. It is concluded that high efficiency of decolorization of fresh MnO_(2 )is attributed to its strong interface adsorption.
出处
《环境科学与技术》
CAS
CSCD
2004年第1期85-86,共2页
Environmental Science & Technology
基金
河北省科技攻关计划项目(99547012D)
