摘要
短程硝化反硝化技术对于节省能源和碳源具有重要意义。基于前期的研究基础，在北京北小河城市污水处理厂建立了有效容积为54m^3的SBR中试系统，在国内外首次采用实际城市污水，在温度为11．8-25℃和通常溶解氧条件下，实现了稳定的常温、低温短程硝化反硝化。系统在保证总氮去除率约为98．2％的基础上，亚硝化率基本保持在95％以上。该项研究成果为低氨氮污水的短程硝化反硝化技术由实验室研究走向工程化奠定了基础。
Biological nitrogen removal technology via short-cut nitrification and denitrification is very significant for saving energy and carbon sources. Based on the prior study, a pilot-scale SBR with a working volume of 54 m^3 was built in Beixiaohe Municipal Wastewater Treatment Plant in Beijing. The stable nitrogen removal from real municipal wastewater via nitrite is successfully achieved for the first time at home and abroad at the temperature ranging from 11.8 ℃ to 25 ℃ and without DO limitation. Based on achieving 98.2% of TN removal efficiency, nitrite accumulation rate is maintained above 95%. This research achievement lays the foundation for the engineering application of nitrogen removal via short-cut nitrification and denitrification.
出处
《中国给水排水》
CAS
CSCD
北大核心
2007年第15期1-3,共3页
China Water & Wastewater
基金
国家高技术研究发展计划(863)项目(2004AA601020)
国家"十一五"科技支撑计划项目(2006BAC19B03)
北京市属市管高等学校人才强教"创新团队"项目
关键词
SBR法
短程硝化反硝化
城市污水
低温
实时控制
SBR process
short-cut nitrification and denitrification
municipal wastewater
low temperature
real-time control
