【摘要】 为从厌氧序批式反应器中接种好氧硝化污泥,对厌氧氨氧化污泥的培养进行了研究.采用含氮模拟废水,在进水pH值为7.2-7.8、温度为(30±1)℃的条件下运行142d,成功培养出厌氧氨氧化污泥.实验结果表明:在水力停留时间为1.2d、总氮容积负荷(以N计) 为0.4318kg/(m3·d)时,总氮去除率最高达到93.3%,平均为80.5%;氨氮和亚硝酸盐氮的去除率最高达到93.9%和99.8%,平均为81.2%和85.7%;氨氮和亚硝酸盐氮去除的比例(摩尔比)为1:(1.387±0.024),反应器内主要发生厌养氨氧化反应,说明采用厌氧序批式反应器是培养厌氧氨氧化污泥的一条途经.更多还原

【Abstract】 In order to seed aerobic nitrated sludge in an anaerobic sequencing batch reactor (ASBR) , the anaerobic ammonium-oxidized sludge (ANAMMOX) was successfully enriched at (30±1)℃ after a 142-day cultivation, with the influent pH value ranging from 7. 2 to 7. 8. Experimental results indicate that, with a hydraulic settling time of 1.2d and a volumetric loading rate calculated with the content of N) of 0.4318kg/(m3·2 d) , the maximum and average removals of the total nitrogen respectively achieve 93. 3% and 80. 5% , while the maximum removals of NH4+-N and NO2+-N respectively achieve 93. 9% and 99. 8% , averaging 81. 2% and 85.7% respectively . In addition , the mole ratio of the removed NH4+-N to the removed NO2--N in the ANAMMOX process is 1: (1.387±0.024) , and the anaerobic ammcnium oxidation is found to be the main reaction in the ASBR, which means that ASBR is one of the useful tools to enrich the ANAMMOX sludge.更多还原