水平潜流人工湿地对氮去除的作用机理

Action Mechanism of the Nitrogen Removal in Horizontal Undercurrent Artificial Wetland

水平潜流人工湿地的构造决定了湿地内部有好氧、缺氧和厌氧的环境,环境条件比较丰富,这种特殊的环境条件使水平潜流人工湿地对氮的脱除有很好的效果。污水中氮的去除方式主要为人工湿地中的基质和植物吸收、反硝化作用和微生物的硝化。主要介绍了湿地内部的硝化作用和反硝化作用,讨论影响硝化和反硝化的影响因素,为进一步提高水平潜流人工湿地对氮的去除率提供相关依据。

The constitution of horizontal undercurrent artificial wetland determines the aerobic, oxygen-deficient and anaerobicenvironment inside the wetland, and the environmental conditions are relatively abundant. The special environmental conditionsmake that the horizontal undercurrent artificial wetland is of very good effect in nitrogen removal. Nitrogen removal ways ofwastewater mainly includes matrix and plant absorption, denitrification and the nitrification of microorganisms in artificial wetland.Mainly introduces nitrification and denitrification inside wetlands, and discusses the influencing factors affecting nitrification anddenitrification, in order to provide basis for improving the nitrogen removal rate of horizontal undercurrent artificial wetlandfurther.