作　　者： ; ; ; ; ;

机构地区： 广州大学土木工程学院

出　　处： 《中国给水排水》 2012年第7期12-16,共5页

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25.6～32.1 mg/L、COD为50～100 mg/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100～200 L/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100～120 L/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。 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.

关 键 词： 序批式生物膜反应器 短程硝化 氨氧化速率 积累率 同步硝化反硝化

领　　域： [环境科学与工程]