【作者】 康琪；

【导师】 高宝玉；

【作者基本信息】 山东大学 ， 环境工程， 2006， 博士

【摘要】 本论文在综述国内外近年来染料废水脱色文献的基础上，从改进化学絮凝脱色法中的数据分析方法入手，将计算机数据解析技术和压电传感监测方法引入废水脱色过程分析，研究了模拟染料废水脱色过程中各个相关组分与絮凝剂投加量之间的变化规律，可为分析和了解模拟染料废水化学絮凝法脱色过程提供更为详细的信息。主要研究内容及结论如下： 1、单染料模拟废水脱色体系的光谱数据分析与相关浓度测定。 以聚环氧氯丙烷二甲胺（EPI-DMA）、聚二甲基二烯丙基氯化铵（PDMDAAC）、纳米Al₁₃(Al₁₂AlO₄（OH）₂₄⁷⁺，Al₁₃)三种阳离子聚合物为絮凝剂，分别脱除单染料模拟废水中的活性艳红K-2BP、活性紫K-3R、活性黑KN-B三种阴离子活性染料，研究了所构成的9个单染料模拟废水脱色体系的化学絮凝脱色性能。采用傅立叶变换、因子分析、多元线性回归等化学计量学方法，解析上述脱色体系在化学絮凝脱色过程中的可见光谱数据。研究结果表明，在所试验的单染料模拟废水脱色体系中，存在着游离态染料、染料．絮凝剂结合物、颗粒光散射共3个对模拟染料废水脱色率有直接影响的组分，各组分对模拟废水脱色率的影响程度随絮凝剂投加量的变化而变化。当絮凝剂投加量不足时，模拟染料废水的残留色度主要来自于游离态染料；而当絮凝剂投加过量后，在模拟废水中重新稳定的染料-絮凝剂结合物是模拟染料废水残留色度的主体。此外，絮体颗粒所引起的光散射也是造成模拟染料废水脱色率偏低的原因之一。在絮凝剂的最佳投加量附近，三种絮凝剂对三种活性染料的脱除率均超过94％。 此外，本论文提出采用脱色体系在整个可见光区吸光度的平均值作为色度测量指标，计算絮凝剂对有色废水脱色效率，它比传统的采用单波长吸光度计算脱色率的方法更为合理，可适用于混合染料废水等脱色过程中吸收光谱发生变化的脱色体系，能够更为真实地反映混合染料废水的脱色效果，而且与人的视觉有更好的相近性。 2、二元混合染料模拟废水脱色体系的光谱数据分析与相关浓度测定。 由活性染料K-2BP、K-3R、KN-B组合出3种二元混合染料模拟废水样，它们与EPI-DMA、PDMDAAC、纳米Al₁₃三种絮凝剂构成9个模拟废水脱色体系，更多还原

【Abstract】 The researches related to the decolorization of dye wastewaters were reviewed. Chemometrics and piezoelectric sensor methods were employed to analyze the decolorization processes of simulated dye wastewaters by chemical flocculation. The data analysis method can provide more detailed information for the understanding of the decolorization processes. The main researches and conclusions are given as follows:1. Data analysis and related concentration measurements in single dye simulated wastewaters during chemical flocculation processes.Epicholorohydrin-dimethylamine polymer（EPI-DMA）, polydiallyldimethylammonium chloride （PDMDAAC）, and polynuclear species, Al₁₂AlO₄（OH）₂₄（H₂O）₁₂⁷⁺(Al₁₃) were used as the flocculants. Anionic dyes, namely Reactive Brilliant Red （K-2BP）、Reactive Violet （K-3R） and Reactive Black （KN-B）, were chosen to prepare the simulated dye wastewater samples. The decolorization behaviors of the nine samples were tested. Fourier transform, factor analysis and multiple linear regression methods were used to analyze the spectrometric data in the dye samples during the flocculation processes. It is shown that free dye, complex of dye and flocculant as well as the light scattering from the particles are the three components that are related directly to the decolorization efficiency in the samples tested. The concentrations of the three components are related to the dosage of flocculant. In the region of insufficient dosage of flocculant, the residual color in the samples is mainly due to free dye. When the flocculant is over dosed, the residual color in the samples is mainly from the更多还原