摘要： 以厌氧颗粒污泥为种泥，在SBR中培养出了好氧颗粒污泥，并研究有机负荷、含盐量对其稳定性的影响。结果表明：好氧颗粒污泥培养时间仅30 d，颗粒粒径约2 mm。有机负荷在1.8~4.0 kgCOD/（m³·d）范围内稳定性较好，COD、TN的去除效果随有机负荷增加而略有提高。含盐质量分数为1%时，颗粒污泥仍保持一定的稳定性，增加到2.5%开始出现颗粒解体，COD、氨氮去除效果大幅降低；含盐质量分数增加到5%时，颗粒污泥解体现象、上浮现象有所缓解，COD、氨氮去除效果有所回升，分别稳定在70%、62%。

关键词: 好氧颗粒污泥, 有机负荷, 含盐量, 上流式厌氧污泥床

Abstract: Using anaerobic granular sludge as seed sludge,aerobic granular sludge has been cultivated in sequencing batch reactor(SBR),and the influence of organic load and salt content on its stability investigated. The results show that when the caltivation time of aerobic granular sludge is only 30 days,and the granule particle size about 2 mm. The stability is relatively good when organic load is in the range of 1.8-4.0 kg COD/(m³·d). The removing effects of COD and TN increase to a small extent with the increase of organic load. When 1% of the mass fraction of salt content is increased,the granular sludge still keeps a certain stability,while 2.5% of it is increased,granular decomposition starts to occur,and the removing effects of COD and ammonia nitrogen are reduced greatly. When 5% of the mass fraction of salt content is increased,the phenomena of decomposition and floating upward are alleviated somewhat,and the removing rates of COD and ammonia nitrogen go upward,maintaining stably at 70% and 62%,respectively.

Key words: aerobic granular sludge, organic load, salinity, upflow anaerobic sludge bed

中图分类号: 

• X703.1