低浓度下短程硝化试验研究  

Study on Shortcut-nitrification Process Under Low DO Level

作　　者：刘海滨[1] 李亚峰[1] 李亭亭[1] 田西满[1] 姚敬博[1] 

机构地区：[1]沈阳建筑大学,辽宁沈阳110168

出　　处：《辽宁化工》2009年第1期35-37,65,共4页Liaoning Chemical Industry

摘　　要：在低氧曝气短程硝化过程中，氧气是反应的限制因子，氧气的浓度和反应时间直接决定了氨氮的去除率。DO浓度0．25—0．75mg／L这一范围内，亚硝酸氧化速率很小，受DO浓度变化的影响也小；氨氧化速率相对较高，DO浓度对氨氧化速率影响相对较大。In the process of short - cut nitrification under low DO level, DO is the limiting factor of the reaction, the NH4^＋ - N Removal efficiency is decided directly by the oxygen concentration and the reaction time. In the low dissolved oxygen within the framework of（0.25 - 0.75 mg/L）, the oxidation rate of ammonia is high and markedly effeeted by DO value, the nitrous oxidation rate is small and little effeeted by DO value.

关 键 词：低氧 短程硝化 SBR 

分 类 号：X703[环境科学与工程—环境工程]