CAJ | 학술논문

常温条件下(20~25℃),以生活污水为研究对象,采用间歇曝气序批式反应器1#、2#、3#,研究了不同曝停时间比(3：1、3：2、3：3)对亚硝酸盐氮积累、亚硝化稳定性、污染物去除效果及污泥沉降性能的影响.结果表明,在一定范围内,单元停曝时间所占比例越大,即曝停时间比越小越有利于亚硝酸盐氮的积累,启动速度越快,三者分别经35,30,29d 实现了亚硝化的启动；稳定运行阶段,三者的氨氮容积去除负荷分别为0.57,0.48,0.40d-1,曝停时间比越小,则氨氮去除负荷越小,COD去除效果没有明显区别；1#运行至第82d时,亚硝化率呈现逐渐下降的趋势,2#、3#仍能稳定运行,因此曝停时间比越小,越有利于抑制NOB的增殖,维持亚硝化的稳定,且污泥沉降性能越好,越有利于抑制丝状菌污泥膨胀.
상온조건하(20~25℃),이생활오수위연구대상,채용간헐폭기서비식반응기1#、2#、3#,연구료불동폭정시간비(3：1、3：2、3：3)대아초산염담적루、아초화은정성、오염물거제효과급오니침강성능적영향.결과표명,재일정범위내,단원정폭시간소점비례월대,즉폭정시간비월소월유리우아초산염담적적루,계동속도월쾌,삼자분별경35,30,29d 실현료아초화적계동；은정운행계단,삼자적안담용적거제부하분별위0.57,0.48,0.40d-1,폭정시간비월소,칙안담거제부하월소,COD거제효과몰유명현구별；1#운행지제82d시,아초화솔정현축점하강적추세,2#、3#잉능은정운행,인차폭정시간비월소,월유리우억제NOB적증식,유지아초화적은정,차오니침강성능월호,월유리우억제사상균오니팽창.
Under room temperature (20~25℃), in intermittent aeration sequencing batch reactors 1 #, 2 #, 3 #, it was studied that effects of different ratios of aeration time and anaerobic time (3:1, 3:2, 3:3) on the nitrite accumulation, the stability of nitrosation, the pollutants removal efficiency and sludge settling performance with domestic wastewater. The smaller the ratio of aeration time and anaerobic time within a certain rangeis,the more beneficial to the accumulation of nitriteis.It realized the start-up of nitrosation by 35d, 30d, 29d respectively.In stable operation stage, the removal of ammonia nitrogen volume of load were 0.57, 0.48, 0.40kgN/m3 drespectively.The smaller the ratio of aeration time and anaerobic timeis,the smaller ammonia nitrogen removal load was. The differences of COD removal effect were not obvious.At 82d the nitrosation rate of 1# showed a trend of gradual decline, but it had a stable operation in 2 #, 3 #.So the smaller the ratio of aeration time and anaerobic timeis , the more conducive to maintain the stability of nitrosation, and the better sludge settling performance was.