提高人工湿地脱氮除磷性能的强化技术及其在有色金属工业废水中的应用

人工湿地因具有良好的脱氮除磷性能而广泛应用于生活污水尾水和工业废水的深度处理。然而，随着环保政策要求的日益严格，传统的人工湿地对不同水质污水的处理能力有限，从而导致多数污水处理难以满足达标排放的要求。因此，越来越多的强化技术与手段被应用于人工湿地系统，以增强人工湿地的污染物净化性能。主要从合理设计人工湿地、联合预处理工艺构建复合人工湿地系统以及保温和溶解氧控制等方面综述当前提高人工湿地脱氮除磷性能的强化技术，并简要概述了人工湿地在处理有色金属工业废水中的应用。

Strengthening Technology to Improve Nitrogen and Phosphorus Removal Performance by Constructed Wetlands and Its Application in Nonferrous Metal Industrial Wastewater

Constructed wetland is widely used in the advanced treatment of domestic sewage tail water and industrial wastewater, because of its good nitrogen and phosphorus removal performance. However, with the increasingly strict requirements of environmental protection policies, the traditional constructed wetlands have limited capacity to treat different sewage, resulting in the difficulty of most sewage treatment is difficult to meeting the requirements of standard discharge in most sewage treatment. Therefore, more and more enhancement techniques have been applied to the constructed wetland system to enhance the pollutant purification performance of constructed wetlands. The current enhancement technologies to improve the nitrogen and phosphorus removal performance by constructed wetlands were mainly reviewed from the aspects of rational design of constructed wetlands, construction of composite artificial constructed wetland system combined with pretreatment technologies, and strengthening measures of heat preservation and dissolved oxygen control. The application of constructed wetlands in the treatment of nonferrous metal industrial wastewater was briefly outlined.