人工湿地增氧技术在污水脱氮中的应用  

Application of aeration technology to nitrogen removal in constructed wetlands

作　　者：王玮[1] 丁怡[1] 王宇晖[1] 宋新山[1] 

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

出　　处：《工业水处理》2014年第8期1-5,共5页Industrial Water Treatment

基　　金：国家自然科学基金项目(51309053,51079028)

摘　　要：在人工湿地污水处理系统中,溶解氧对脱氮效果起着非常重要的作用。由于人工湿地自身构造的限制,湿地内溶解氧水平普遍较低,利用增氧技术可明显改善人工湿地内部的溶解氧水平,提高湿地硝化脱氮作用。对溶解氧在人工湿地脱氮中的作用及其主要来源进行了描述,探讨了影响人工湿地溶解氧水平的因素,重点论述了提高人工湿地溶解氧水平的途径,并对今后的相关研究方向进行了展望。Dissolved oxygen has a great effect on nitrogen removal in constructed wetland treatment system. Due to forecast the structural constraints of constructed wetlands, the level of dissolved oxygen is generally low. The aeration techniques can obviously improve the level of dissolved oxygen in constructed wetlands and increase the nitrogen re- moval effect. The effect of dissolved oxygen on nitrogen removal in constructed wetlands and its main source are de- scribed. The factors which have effects on the dissolved oxygen level of constructed wetlands are discussed and the ways of improving the level of dissolved oxygen in constructed wetlands are discussed emphatically. In addition, the relevant research direction in future is forecast.

关 键 词：工湿地 溶解氧 脱氮 增氧技术 

分 类 号：X703[环境科学与工程—环境工程]