非点源污染物细颗粒泥沙的絮凝-分散研究

A Review on the Factors Influencing Flocculation and Deflocculation of Fine Sediment as Non-point Source Pollutants

细颗粒泥沙的絮凝-分散对土壤结构的稳定性，土壤中农用化合物的迁移以及侵蚀泥沙的输移、沉积有重要作用。文章概述了影响细颗粒泥沙絮凝-分散的几种主要因素——电解质种类及其浓度，矿物组成，有机质含量，pH值以及水流紊动等；指出了当前研究中存在的不足之处。

Flocculation and deflocculation of fine sediment play an important role in soil structural stability, agro-chemical compounds movement and eroded sediment transport. In this paper, some influencing factors for fine sediment flocculation and deflocculation, such as the type and concentration of electrolyte, mineral composition, organic matter content, soil pore fluid pH and water turbulence, are reviewed. At the same time, the weak aspects of present research are discussed.