文档介绍：贵州农业科学
2011,39(11):202~204
GuizhouAgriculturalSciences
文章编号
[ ]10013601(2011)110714020203
溶解氧对河流底泥中氮去除的影响
刘春杰,李金荣,王莉,陈停
郑州大学水利与环境学院河南郑州
( , 450001)
摘要为探索溶解氧对河流底泥中氮释放和去除的影响选择城市污染河流底泥通过室内模
[ ] (DO) , ,
拟不同的条件观察河流上覆水中氨氮亚硝态氮和硝态氮之间相互转化的规律结果表明底泥是主
DO , 、。:
要的二次污染源氮污染物质以氨氮的形式向上覆水体中释放浓度越低越有利于底泥中氨氮的释放
, ;DO ,
浓度越高水体中氨氮去除越快同时试验过程中出现了短程硝化好氧反硝化和短程硝化厌氧氨氧化的
DO 。
现象。
[关键词]溶解氧;河流底泥;三氮转化
中图分类号文献标识码
[ ]X522 [ ]A
EffectofDissolvedOxygenonNitrogenRemovalinRiverSediment
LIUChunjie,LIJinrong,WANGLi,CHENTing
(Schoolof WaterConservancyandEnvironment,ZhengzhouUniversity,Zhengzhou,Henan450001,China)
Abstract:Themutualtransformationregulationamongammoniumnitrogen,nitratenitrogenand
nitritenitrogeninoverlyingriverfromthepollutedriversedimentwasstudiedunderdifferentindoor
dissolvedoxygenconditionstoprobetheeffectofdissolvedoxygenonnitrogenremovalinriversediment.
Theresultsshowedthatthesedimentwasthemainsecondarypollutionsourceandthenitrogenwas

oxygenconcentrationwasbeneficialtoammoniumnitrogenreleaseinthesedimentandhigherdissolved
oxygenconcentrationhelpedammonium 
denitrificationandshortcutnitrificationanaerobicammoniumoxidationduringtheexperimentprocess.
Keywords:dissolvedoxygen;sediment;nitrogentranslatio