【摘要】 本研究选择若干种类活性染料,采用非生物的脱色方法,探索染料分子结构和脱色方法、脱色效果间的关系。结果表明:用铁盐和铝盐絮凝法处理的脱色效果与pH值的关系很大,色度去除难易的次序为酞菁型>蒽醌型>偶氮型>金属络合型,与染料结构关系密切;次氯酸钠、紫外光,Fenton试剂及臭氧等,皆有较好的脱色效果;这些方法的适当组合,可以提高活性染料染色废水的脱色率,而且费用也较低。更多还原

【Abstract】 A number of non-biological methods were used for decolorizing the reactive dye-containing wastewater.By use of ferric salt or alum as the chemical flocculating agent, the effectiveness of color removal was found to be in close relation to pH value of the wastewater, and in dependence on the types of the dye structures in the following decreasing order : phthalocy-anine-type > anthraquinone-type > azo-type > chelate-type. other methods investigated were sodium hypochlorite, ultraviolet light, Fenton agent and ozone, and they all showed satisfactory results. When sodium hypochlorite, ultraviolet and ozone were used in combination, the decolorization effect was even stronger.更多还原