底泥中氮的释放与溶解氧量的关系  

Relationship between Dissolved Oxygen Level in Water and Nitrogen Released in River Sediment

作　　者：陈停[1] 姚萌[1] 刘春杰[1] 

机构地区：[1]郑州大学水利与环境学院,河南郑州450001

出　　处：《净水技术》2012年第1期70-72,92,共4页Water Purification Technology

基　　金：国家重大淮河水专项课题(2009ZX07010-010-003)

摘　　要：调研分析基础上，结合贾鲁河（郑州段）污染的实际情况，通过自制的原始柱状底泥模拟试验装置，研究了溶解氧量对底泥中氮的释放转化规律。结果表明：溶解氧是影响底泥中氮转化的主要因素，给氧条件下可以促进硝化作用的进行，氨氮的去除转化较彻底；当水样中溶解氧量为8．5-11．4mg／L时，氨氮的去除率最高，最早发生硝化反应。On the basis of actual pollution situation of Jialu River （Zhengzhou section） survey, the regulation of nitrogen released and conversion effected by DO in sediment was studied by the original cylindrical sediment simulation device. The results show DO is the main influencing factor of nitrogen release and conversion in sediment. Under the condition of aerobic, ammonia nitrogen is re- moved completely; when DO is 8.5-11.4 mg/L, the removal rate of ammonia nitrogen is highest, and nitration reaction occurs earliest.

关 键 词：溶解氧 内源污染 底泥 氮转化 

分 类 号：TU992.2[建筑科学—市政工程]