溶解氧和碳源在人工湿地脱氮中的耦合关系分析  

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

作　　者：丁怡[1] 王玮[1] 王宇晖[1] 宋新山[1] 

机构地区：[1]国家环境保护纺织污染防治工程技术中心,东华大学环境科学与工程学院,上海201620

出　　处：《工业水处理》2015年第1期5-8,共4页Industrial Water Treatment

基　　金：国家自然科学基金项目(51309053;51079028)

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。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 improve-ment of the nitrogen removal efficiency.

关 键 词：人工湿地 溶解氧 碳源 脱氮 耦合关系 

分 类 号：X703.1[环境科学与工程—环境工程]