Surfactant solutions have been frequently studied for soil remediation. However, since they are expensive, massive consumption of surfactant solution can constrain their application. Surfactant microbubbles, or colloidal gas aphrons (CGAs), can serve as cost effective alternatives of surfactant solution because the use of CGAs reduce the amount of surfactant consumption. Moreover, CGAs can also improve the contact with the contaminated environment due to their unique surface properties, e.g. containing 40–70% of gas, small size, large interfacial areas, water-like flow properties and buoyant rise velocities. In this review paper, the properties and flow character of CGAs in soil matrix reviewed due to their relevance to soil remediation process. A comprehensive overview of the application of CGAs in flushing off organic pollutants and heavy metals, and carrying oxygen, bacteria and dissolved materials for soil remediation were provided. This paper also highlighted the limitation of CGAs application and important future research scopes.

表面活性剂溶液已被广泛研究用于土壤修复。然而，由于它们昂贵，因此大量消耗表面活性剂溶液会限制其应用。表面活性剂微泡或胶体气泡（CGA）可以用作表面活性剂溶液的经济有效替代品，因为使用CGA可以减少表面活性​​剂的消耗量。此外，CGA还具有独特的表面特性，例如含有40％至70％的气体，小尺寸，大界面面积，类似水的流动特性和浮力，还可以改善与受污染环境的接触。本文综述了CGA在土壤基质中的性质和流动特性，因为它们与土壤修复过程相关。CGA在冲洗掉有机污染物和重金属中的应用的全面概述，并提供氧气，细菌和溶解性物质进行土壤修复。本文还强调了CGA应用的局限性和重要的未来研究范围。