摘要
采用了好氧活性污泥和厌氧颗粒污泥混合接种的方法 ,成功地启动了实验室规模的厌氧氨氧化反应器 ,启动后含氨模拟废水运行的进水氨浓度和进水亚硝基氮浓度均为 2 0 mmol/ L ,氨氮、亚硝基氮和总氮的容积负荷率为10 .69mmol/ L·d,12 .2 6mmol/ L· d和 3 94.5 5 mg/ L·d,氨氮、亚硝基氮和总氮的去除率保持在 90 %、99%和 95 %以上 ,对运行条件研究表明 ,厌氧氨氧化反应的最适 p H为 7～ 7.5 ,最适温度约在 3 0± 1℃。厌氧氨氧化随亚硝酸盐浓度的升高而下降 ,氨的厌氧转化随 COD浓度的增加也呈抑制型曲线 ,当 COD浓度为 80 0± 5 0 mg/ L 时 。
A laboratory-scale anaerobic ammonia oxidation reactor seeded with the mixture of aerobic activated sludge and anaerobic activated sludge was successfully started up.The influent concentration of ammonia and nitrite each was 20mmol/L after successful start-up;the volumetric loading rate of ammonia.nitrite and total nitrogen were 10.69 mmol/L·d, 12.26 mmol/L·d and 394.55 mg/L·d respectively;ammonia,nitrite and total nitrogen removal were over 90%,99% and 95% individually.It was verified that the optimal pH of ANAMMOX reaction was between 7～7.5,the optimal temperature was 30±1℃,and the higher the nitrite concentration was,the lower the ammonia and nitrite removal,the optimal COD concentration value for the bioreaction was 800±50mg/L.
出处
《重庆环境科学》
北大核心
2002年第6期30-33,共4页
Chongqing Environmental Science
基金
教育部骨干教师科研项目
