| 染料结构与其絮凝脱色效果关系的探讨 |
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| 引用本文： | 余颖,李莹,庄源益,辛宝平,邹其猛.染料结构与其絮凝脱色效果关系的探讨[J].城市环境与城市生态,2000(1). |
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| 作者姓名： | 余颖 李莹 庄源益 辛宝平 邹其猛 |
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| 作者单位： | 南开大学环境科学系!天津300071 |
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| 摘 要： | 在对活性、酸性和碱性等 1 0种水溶性染料水样絮凝脱色和平衡渗析实验数据进行分析的基础上 ,初步探讨了染料结构与其絮凝脱色率之间的定性关系。PAN -DCD絮凝剂对 1 0种染料的最佳脱色pH范围 <5,尤其在pH值 <4更佳。在最佳pH条件下 ,絮凝剂加入量增加 ,脱色率升高。染料分子上磺酸基数目多者脱色效果好 ,分子中疏水性基团大则脱色率高 ,含蒽醌环的染料脱色率大于萘环者 ,也大于含苯环者。
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| 关 键 词： | 染料结构 絮凝脱色效果 疏水作用 化学作用 |
Preliminary Study of the Relationship between the Structure of Dyes Flocculated by PAN-DCD and the Decolorization Efficiency of Dyes |
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| YU Ying,LI Ying,ZHUANG Yuan yi,XIN Bao ping,ZOU Qi meng.Preliminary Study of the Relationship between the Structure of Dyes Flocculated by PAN-DCD and the Decolorization Efficiency of Dyes[J].Urban Environment & Urban Ecology,2000(1). |
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| Authors: | YU Ying LI Ying ZHUANG Yuan yi XIN Bao ping ZOU Qi meng |
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| Abstract: | Based on the experimental data of flocculating decolorization of ten water soluble dyes including reactive, acid and base dyes and that of equilibrium dialysis, the qualitative relationship between dyes structure and the efficiency of dyes flocculating decolorization was investigated. The results showed that the pH range of the optimum decolorization of these dyes by PAN-DCD is below 5. Under the condition of optimum pH, the flocculating decolorization efficiency increases with increasing the dose of PAN-DCD. When there are more sulfonic acid groups , more hydrophobic groups and bigger hydrophobic ones in the dyes structure, the flocculating decolorization efficiency of the dyes becomes higher. |
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| Keywords: | dyes structure flocculating decolorizaiton efficiency hydrophobic interaction chemical interaction |
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