以光散射法對混凝顆粒特性之研究

Abstract

本論文利用光散射法研究不同混凝情況下膠羽大小與結構的關係，針對北勢溪、南勢溪、新店溪原水顆粒與人工原水顆粒添加有機物兩部份進行絮凝探討。結果顯示，原水性質不同，使絮凝顆粒在結構和大小成長上各有不同趨勢。加入帶有正電的有機物易使膠羽的粒徑變大且緻密，不同有機物對PACl-黏土顆粒聚集體之結構強度及聚集物性都有不同之影響。

This thesis studied the changes in size and structure of particles subjected to different coagulation conditions using a small angle light scattering technique. The particles collected from Beishi River, Nanshi River and Shindian River and those prepared artificially were tested. Experimental results revealed that the origin of raw water nature affected significantly the aggregation dynamics of particles. Addition of organic matters with positive surface charge enhanced coagulation and produced compact aggregates. Various organic matters produced distinct interior structures of the PACl- clay pellets.