Abstract：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.
苏东霞, 李冬, 张肖静, 张功良, 周元正, 张杰. 曝停时间比对间歇曝气SBR短程硝化的影响[J]. 中国环境科学, 2014, 34(5): 1152-1158.
SU Dong-Xia, LI Dong, ZHANG Xiao-Jing, ZHANG Gong-Liang, ZHOU Yuan-Zheng, ZHANG Jie. Effects of different ratios of aeration time and anaerobic time on shortcut nitrification in the intermittent aeration SBR. CHINA ENVIRONMENTAL SCIENCECE, 2014, 34(5): 1152-1158.
