Analysis on the coupling relationship between dissolved oxygen and carbon source in the nitrogen removal of constructed wetlands

doi:10.11894/1005-829x.2015.35(1).005

Abstract

Abstract:

Nitrification-denitrification is the main approach for nitrogen removal in constructed wetland treatment system. How to simultaneously ensure the important mechanism of nitrogen removal,nitrification-denitrification,to run smoothly is the key to the improvement of the nitrogen removal efficiency of constructed wetlands. The effect of dissolved oxygen and carbon source on nitrogen removal in constructed wetlands and its main source are described,and the coupling relationship between dissolved oxygen and carbon source in the nitrogen removal of constructed wetland is emphatically discussed. Appropriate control of the influent C/N ratio is considered the key to the improvement of the nitrogen removal efficiency.

Key words: constructed wetland, dissolved oxygen, carbon source, nitrogen removal, coupling relationship

摘要：

硝化-反硝化过程是人工湿地脱氮的主要途径。如何同时保障硝化-反硝化这一重要脱氮机制的畅通是提高湿地脱氮效率的关键。对溶解氧和碳源在人工湿地脱氮中的作用及其主要来源进行了描述,重点论述并分析了溶解氧和碳源在人工湿地脱氮中的耦合关系,合理调整进水中的碳氮比被认为是提高湿地脱氮效率的关键。

关键词: 人工湿地, 溶解氧, 碳源, 脱氮, 耦合关系

CLC Number:

X703.1

Ding Yi, Wang Wei, Wang Yuhui, Song Xinshan. Analysis on the coupling relationship between dissolved oxygen and carbon source in the nitrogen removal of constructed wetlands[J]. INDUSTRIAL WATER TREATMENT, 2015, 35(1): 5-8.

丁怡, 王玮, 王宇晖, 宋新山. 溶解氧和碳源在人工湿地脱氮中的耦合关系分析[J]. 工业水处理, 2015, 35(1): 5-8.

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URL: https://www.iwt.cn/EN/10.11894/1005-829x.2015.35(1).005

https://www.iwt.cn/EN/Y2015/V35/I1/5

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