摘要
连续动态试验研究表明,对于高浓度氨氮渗滤液,普通活性污泥法的好氧反硝化工艺的总氮去除率可达10%以上.硝化反应速率随着溶解氧浓度的降低而下降;反硝化反应速率随着溶解氧浓度的降低而上升.硝化及反硝化的动力学分析表明,在溶解氧浓度为0.14mg/L左右时会出现硝化速率和反硝化速率相等的同步硝化反硝化现象,其速率为4.7mg/(Lh),硝化反应kN=0.37mg/L;反硝化反应kD=0.48mg/L.
The results of tests show that TN removal rate higher than 10% could be reached in the aerobic denitrification process of common activated sludge technique for the ammonia nitrogen rich leachate. Nitrification rate decreases with decrease of the DO, and denitrification rate increases with the decrease of the DO. According to the kinetic analysis of nitrification anddenitrification, there is a point at which nitrification rate is equal to denitrification rate of 4.7mg/(Lh) when DO is about0.14mg/L, The ralated kinetics parameters are kN =0.37mg/L for nitrification and kD=0.48mg/L for denitrification.
出处
《中国环境科学》
EI
CAS
CSSCI
CSCD
北大核心
2002年第5期412-415,共4页
China Environmental Science
基金
国家"九五"科技攻关项目(96-909-05-02)
