摘要
我国现有的传统活性污泥法污水处理厂能去除COD和BOD等碳素污染物 ,而往往不具备脱氮能力 ,因此其出水是水体氮素的重要污染源 .介绍的在中试研究基础上的传统活性污泥法投料AO脱氮新工艺 ,能使传统活性污泥工艺在保持较高BOD和COD去除率的同时 ,具有良好的脱氮功能 .研究表明 ,新工艺中试运行稳定 ,出水水质优于国家排放标准 ,对COD和氨氮的平均去除率分别为 88%和 73% .
In China,traditional activated sludge sewage treatment plants usually have the function to remove COD,BOD and other carbonaceous pollutants and have no function to remove nitrogen.So the effluent from these plants is the main nitrogen pollution source for water bodies.Based on pilot scale test,a new AO nitrogen removal process with suspended biomass packing was proposed in this paper.The new process can enhance the nitrogen removal efficiency without losing the removal efficiency of COD and BOD of traditional activated sludge process.The results shows that the new process runs NH 3 steadily and the effluent water quality is better than the National Emission Standards.The average removal efficiencies of COD and NH 3—N are 88% and 73%,respectively.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2003年第10期1229-1231,共3页
Journal of Tongji University:Natural Science
关键词
传统活性污泥法
城市污水处理厂
脱氮
悬浮生物载体
traditional activated sludge process
municipal sewage treatment plant
nitrogen removal
suspended biomass packing
