溶解氧影响河流底泥中氮释放的实验研究  

A Study of DO on Nitrogen Releasing in the Sediment of Rivers

作　　者：李金荣[1] 王莉[1] 陈停[1] 刘春杰[1] 

机构地区：[1]郑州大学水利与环境学院,郑州450001

出　　处：《中国农村水利水电》2012年第5期32-34,38,共4页China Rural Water and Hydropower

基　　金：国家重大淮河水专项课题(2009ZX07001-001-004)

摘　　要：通过自制的柱状模拟实验装置,研究了溶解氧对河流底泥氮转化的影响。研究结果表明:好氧环境可以抑制河流底泥中的氮向上覆水体释放,而厌氧条件下有利于底泥中氮向上覆水体释放;高溶解氧水平下,河流水体中氮的迁移转化作用主要为硝化和反硝化作用。且硝化作用进行得很彻底,氨氮转化率达到100%。The release of nitrogen compounds from river sediments with high levels of dissolved oxygen （DO） statuses of overlying water that is sampled from Zhengzhou City is studied through a large number of simulating experiments. The results indicate that mi- gration and transformation of nitrogen in water is nitrification and denitrification on high levels of DO and the removal rate of ammo- nium and nitrogen is about 100%. The results functions as a scientific basis for controlling the Jialu River pollution, amd protecting surface water environment and ecosystem.

关 键 词：溶解氧 河流 氮 释放 

分 类 号：X832[环境科学与工程—环境工程]