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机构地区:[1]北京化工大学化学工程学院,北京100029 [2]清华大学核能与新能源技术研究院,北京100084
出 处:《中国给水排水》2008年第15期7-10,14,共5页China Water & Wastewater
基 金:国家自然科学基金资助项目(59978020)
摘 要:采用两套相同的ASBR系统,分别接种好氧硝化污泥和自养反硝化污泥,在模拟废水的pH值为7.6~7.9、温度为32℃的条件下,分别运行176d和170d后,均成功启动了厌氧氨氧化反应器。在稳定运行阶段,其总氮容积负荷分别为0.147和0.11kgN/(m3.d),对总氮的平均去除率分别为84.81%和81.57%。两组反应器内氨氮和亚硝态氮的减少量与硝态氮的生成量之比分别为1∶1.08∶0.31和1∶1.18∶0.33。接种了好氧硝化污泥的反应器启动更快,且对氨氮的去除效果更好。The start-up performance of anaerobic ammonia oxidation reactors was investigated by inoculating with aerobic nitrifying sludge and autotrophic denitrifying sludge in two sets of anaerobic sequencing batch reactors (ASBR). The reactors are operated under the condition that the influent pH value ranges from 7.6 to 7.9 and the temperature is 32℃. After 176 and 170 d operation respectively, the start-up of reactors is obtained successfully. At the steady phase of operation, the volumetric total nitrogen (TN) loadings are 0. 147 kgN/( m^3· d) and 0.11 kgN/( m^3 · d) , and the average removal efficiencies of TN are 84.81% and 81.57% respectively. The ratios of ammonia nitrogen and nitrite nitrogen reduction to nitrate nitrogen production are 1 : 1.08 : 0.31 and 1 : 1.18 : 0.33 respectively. The reactor inoculated with aerobic nitrifying sludge starts up more rapidly than that with denitrifying sludge, and the removal efficiency of ammonia nitrogen is also higher.
关 键 词:厌氧氨氧化 硝化污泥 自养反硝化污泥 ASBR 启动
分 类 号:X703.1[环境科学与工程—环境工程]
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