被污染地域的治理在很多工业化国家已取得了重要进展。在这些污染地域治理污染土壤的方法之一是“土壤清洗法”，其目的是从土壤中分离出污染物。土壤清洗法是从选矿技术成功地转换到环境上的典型例子。本文试图通过对有关原理的简短评述及对瑞士的一项成功的土壤清洗例子的讨论，使选矿工程师对土壤清洗有一大概了解。 The governance of the contaminated area has made significant progress in many industrialized countries. One of the ways to treat polluted soil in these polluted areas is the Soil Cleansing Act, which aims to separate contaminants from the soil. Soil washing is a classic example of the successful transition from mineral processing to the environment. This article attempts to give mineral processing engineers an overview of soil cleaning through a brief review of the principle and a discussion of a successful example of soil cleaning in Switzerland.