表面活性剂泡沫强化修复污染土壤研究进展

Research Progress of Surfactant Foam-Enhanced Remediation Technology for Contaminated Soil

全球土壤资源污染严重,表面活性剂泡沫强化修复技术因泡沫流动受重力影响小、避免淋洗液难控制使区域扩大引发二次污染、修复效果好等备受关注。本文综述了表面活性剂泡沫强化修复技术在治理污染土壤中的研究进展,详细阐述了表面活性剂泡沫强化修复污染物的效果、机理、影响因素及应用前景,并就表面活性剂泡沫强化修复技术今后的研究方向进行了展望。

The problem of global soil contamination has become increasingly serious. Surfactant foam technology was paid much attention because of foam flow in porous media is controlled mainly by the injection pressure instead of gravity,thus avoiding the expanding of contaminated area. This paper gives a comprehensive overview of surfactant foam technology,and describes the general procedure of foam washing,its advantages and limitations,and analyzes the major factors that impact the efficiency and cost of this treatment technology.