摘要
为了深入了解全程硝化和短程硝化的异同,采用SBR反应器研究了全程硝化和短程硝化的脱氮除磷特点。结果表明,在曝气量一定的情况下,短程硝化的DO上升速率大于全程硝化的,而全程硝化的氨氮降解速率大于短程硝化的。全程硝化过程中亚硝态氮的浓度始终较低,而短程硝化的亚硝态氮浓度则逐渐升高且增加速率保持稳定。全程硝化和短程硝化的硝态氮浓度都是从某一时间之后以恒定的速率增长。全程硝化过程中,亚硝态氮的积累率先短期升高之后逐步下降;在短程硝化中,亚硝态氮积累率逐渐上升,在好氧吸磷结束后亚硝态氮积累率保持稳定。
In order to understand the difference between complete nitrification and shortcut nitrification, the SBR was used to study nitrogen and phosphorus removal by the complete nitrification and the shortcut nitrification. The results show that when the aeration rate is constant, the DO increase in the shortcut nitrification is faster than that in the complete nitrification. Also, the decrease in ammonia nitrogen is faster in the complete nitrification than in the shortcut nitrification. The nitrite nitrogen concentration in the complete nitrification is low throughout aeration while that in the shortcut nitrification is gradually increased at a steady rate. The nitrate nitrogen concentrations in both nitrifications are increased uniformly after a certain time period. Finally, the nitrite nitrogen accumulation rate in the complete nitrification is first rapidly increased and then is gradually decreased while that in the shortcut nitrification is gradually increased and is kept constant after aerobic phosphorus uptake.
出处
《中国给水排水》
CAS
CSCD
北大核心
2008年第23期6-10,15,共6页
China Water & Wastewater
基金
国家“十一五”科技支撑计划重点项目(2006BAC19B03)
北京市教委科技创新平台项目
