【摘要】 分析了城市地表水体的污染特性和成因,综述了物理法、化学法、生物法及自然净化法等国内外城市地表污染水体常用的净化技术的特点及应用情况,指出了各种技术在实际应用中存在着应用范围窄、对水域生态系统的结构和功能有一定的负面影响以及净化效果不理想和资金花费大等方面的缺点,同时分析了我国当前经济条件下各种强化净化技术的发展前景.更多还原

【Abstract】 The characteristics and causes of pollution in urban surface water bodies are analyzed. Some techniques for water body purification currently used at home and abroad, including the physical process, chemical process, biological process, and natural purification, and their characteristics and application are summarized, and some disadvantages of these techniques are pointed out, such as the limited application range, some negative influences on the structure and functions of urban water ecological system, imperfect purification effect, high cost, and so on. Furthermore, the prospect of the development of various purification techniques under current economic condition in China is analyzed.更多还原