中文摘要：

离子强度和pH是控制胶体运移的两个重要化学影响因素。本文通过高岭石胶体（Kaolinite胶体）在饱和石英砂柱中的出流实验,分析了离子强度（0.0015～0.03mol L^-1）和pH值（5～9）两个因素的变化对胶体运移的影响。结果表明：随离子强度增加,Kaolinite胶体沉淀量增大,运移受阻增强。Kaolinite胶体在中性环境（pH值约为7.10）中沉淀量最小,在酸性环境（pH值约为4.98）中沉淀量最大。

英文摘要：

Ionic-strength and pH are two most important chemical factors affecting transport of Kaolinite colloids. A lysimeter experiment using a column of saturated quartz was carried out to determine effects of ionic intensity （0.001 5 ～ 0.03 mol L^- 1 ） and pH （5 ～ 9） on mobilization of Kaolinite colloids. Results show that deposition of Kaolinite colloids increased with rising ionic intensity and so did retardation of the transport of colloids. The deposition of Kaolinite colloids is the lowest in neutral envirenment （pH7.10） and the highest in acid porous media （pH4.98）.