上海新港河道耗氧特性研究及其综合整治措施

通过实验室试验测定，得出了上海市新港河道水体和底泥的耗氧特性曲线，分析了水体和底泥耗氧的阶段历时、阶段耗氧特性及动力学过程。在缺乏河道水质模型的情况下，利用耗氧特性曲线可以估算各个阶段的耗氧量和河道的总耗氧量，为河道充氧设备的选择提供一定的理论指导。通过计算，上海新港河道的总耗氧量约为75．7kg／d。上海宏成实业发展有限公司采用充氧曝气、投加微生物、种植水生植物等措施对河道进行了治理，实践表明，这些措施可以使新港河道的水质有明显的改善。

Study on Oxygen Demand Characteristics and Restore Countermeasures of Xingang River in Shanghai

With laboratory test, the oxygen demand curves of Xingang river in Shanghai were portrayed. By the use of these curves, this paper analyzed the duration, characteristics and kinetic course of different oxygen demand stage, and calculated roughly oxygen demand amount of every stage and total oxygen demand amount when lacking river quality models. This method supplied theoretical guidance for selection of aerator equipment. The result is that the total oxygen demand amount of Xingang river was 75.7kg/d. Shanghai Hongeheng Indtrstrial Development Co.l.td. took some countermeasures such as aerating,adding microorganism,planting aquatic plants and so on to treat Xingang river and now, the river quality of Xingang river has been improved.