高分子絮凝剂投加量对絮体分形结构的影响研究.doc

高分子絮凝剂投加量对絮体分形结构的影响研究 容摘要：在给水和废水的处理工程中,絮凝体的大小、性状、结构,对调节颗粒污染物的传输与去除有着重要的作用,根据实验及研究表明，废水中的絮凝体表面和部都有高度的不规则性、自相似性和标度不变性等分形特征。絮体分形结构研究着重研究废水处理中絮体的分形结构形态随絮凝条件而改变的特征趋势，从而更好地调节废水处理工程中的运行工况、最终出水和成本费用等，最终对废水处理工程或工业生产工程提出更积极更合理的建议。本文通过向印染废水投入不同浓度的高分子絮凝剂，然后借助图像分析、实验分析等实验技术手段以便更好研究不同絮体分形结构，从而得出高分子絮凝剂的最佳投加量。 关键词：絮体 分形结构 高分子絮凝剂质量浓度 分维数 关键字 Study on effects of the concentration of a high molecular weight palmer on Fractal structure student:Lin Dao Fen supervisor:Zhu Ming Abstract: In the water supply and wasting disposal project, the flocculation’s size, character and structure play an important part in transferring and getting rid of granular contamination. According to the experiments and studies show, the flocculation’s surface and interior have a height irregular, self-similarity and invariance and other feature. Study in Effect of the flocculation’s fractal structure focuses on flocculation fractal structure of wasting-water, which is altered by flocculation condition, so as to be better regular operating condition, untimely disposal water and the cost. Then people can some more active and reasonably advice to Investors. This paper describes that the results in throwing different concentration of height molecular weight polymer to printing and dying water. And then research different flocculation fractal structure, with the help of image analysis, laboratory analysis, so as to conclude the best polymer flocculants dosage. Key words：Flocculation; fractal structure; concentration of a high molecular weight polymer; fractal dimension 目 录 TOC \o 1-3 \h \z \u 1前言： 3 2分形讨论絮体与分形理论阐述 3 2.1混凝形态学与分形理论 3 2.2分形理论概述 3 2.2.1分形理论的产生 3 2.2.2 絮凝体的分形特征 4 2.3分形维数 4 3试验与方法 5 3.1试验方法 5 3.2分析方法与指标 5 3.2.1絮体形态和外观分析 5 3.2.2浊度 5 3.2.3 COD 5 3.2.4分形维数 6 3.3材料与试验装置 6 3.3.1废水来源 6 3.3.2 高分子絮凝剂(PDMC—AMPS—DMAEMA)的配制 6 3.3.3 试验装置及试剂 6 4结果与讨论 7 4.1絮体形态和外观 7 4.2浊度比较 7 4.3 COD结果分析比较： 8 4.4分形维数结果分析比较 8 5结论 11 6参考文献： 11 致 13 高