一、前言随着国民经济的发展,城市生活污水、工业废水不断增加。由于大量污水直接宣泄河道,水体污染日趋严重,如上海的苏州河,南京的秦淮河,深圳的深圳河及深圳湾等。在这种情况下,污水的处理、排放问题已成为各大城市基础设施建设的重要环节。而其中排放口 I. Introduction With the development of the national economy, urban domestic sewage and industrial wastewater have been increasing. As a large amount of sewage directly drains the river, water pollution is becoming more and more serious, such as Suzhou River in Shanghai, Qinhuai River in Nanjing, Shenzhen River and Shenzhen Bay in Shenzhen. Under such circumstances, the issue of sewage treatment and discharge has become an important link in infrastructure construction in major cities. Which discharge port