中文摘要：

采用序批式生物膜反应器（SBBR），应用短程硝化技术处理南方地区的低碳城市污水。在进水TN为25．6～32．1mg／L、COD为50～100mg／L、pH值为7．1—7．6、温度为24～29℃的条件下，进行曝气量对氨氧化速率及短程硝化效果的影响研究，同时考察了SBBR反应器的生物膜特性。结果表明：在曝气量为100—200L／h范围内，氨氧化速率随着曝气量的增加而增大；在曝气量为100～120L／h条件下能够实现NO2^--N的稳定积累和高效短程硝化，且有较明显的同步硝化反硝化（SND）过程，对TN的去除率在48．1％-60．1％之间。同时，由于生物膜复杂的食物链结构，还实现了系统的污泥减量。

英文摘要：

Low carbon urban sewage in south China was treated by the short-cut nitrification process in a sequencing batch biofilm reactor （SBBR）. The effects of aeration rate on ammonia oxidation rate and short-cut nitrification performance were studied under the operating conditions of influent TN 25.6 to 32.1 mg/L, COD 50 to 100 mg/L, pH 7.1 to 7.6 and temperature 24 to 29 ℃. The characteristics of biofilm in SBBR were investigated. The results showed that the ammonia oxidation rate increased with an increase of aeration rate from 100 to 200 L/h. Under aeration rate of 100 to 120 L/h, stable nitrite accumulation and effective short-cut nitrification could be realized and simultaneous nitrification and denitrification （SND） also occurred. The TN removal rate was 48.1% to 60.1%. Meanwhile, sludge reduction was achieved because of the complex food chain in biofilm.