表面活性剂在土壤粒子上的吸附及影响因素综述

Review of Adsorption of Surfactants on Soil Particles and Its Effect Factors

综述了表面活性剂在土壤粒子上吸附及其影响因素的国内外研究进展。研究表明,表面活性剂可通过静电引力、离子交换和氢键等方式吸附在土壤粒子上。表面活性剂的类型与结构组成、土壤的理化特性以及环境条件对其在土壤粒子上的吸附具有非常重要的影响。混合表面活性剂比单一表面活性剂的吸附机理更为复杂。最后,指出目前研究中存在的不足,提出应加强开展混合表面活性剂和特殊表面活性剂在土壤粒子上吸附研究的建议。

The study summarizes the progress in adsorption of surfactants on soil particles and its effect factors. The resuhs show that surfactants are adsorbed on soil particles by electrostatic attraction, ionic exchange, hydrogen bond, and other methods. The types and structures of surfactants, physicocbemical properties of soils and environmental conditions have important effects on the adsorption of surfactants on soil particles. The adsorption mechanisms of mixed surfactants on soil particles are more complicated than single surfactant. Finally, the study points out the disadvantages of present research, and puts forward some suggestions on enhancing the research of adsorption of mixed and special surfactants on soil particles.