摘要： 采用ASBR-SBR-ASBR三级联合工艺处理高浓度含氮有机废水。结果表明，对于ASBRⅠ反应器，当有机容积负荷为2 kg/（m³·d），HRT为12 h时，有机物降解率达到95%。对于SBR反应器，当NH₄⁺-N容积负荷为0.30 kg/（m³·d），HRT为12 h时，出水NH₄⁺-N与NO₂^--N的物质的量比接近1：1.32。ASBRⅡ反应器内则发生厌氧氨氧化反应，NH₄⁺-N与NO₂^--N同步去除；当总氮容积负荷为0.44 kg/（m³·d），HRT为12 h时，NH₄⁺-N去除率可达95%，NO₂^--N去除率达98%。经过75 d的连续培养，反应器启动成功。

关键词: 厌氧序批式活性污泥法, 序批式活性污泥法, 短程硝化, 厌氧氨氧化, 畜禽废水

Abstract: The 3-step combined ASBR-SBR-ASBR process has been used for treating the high-concentration organic wastewater containing nitrogen. The results show that when the organic volume load in ASBRⅠis 2 kg/(m³·d), and HRT is 12 h,the degradation rate of organic matter reaches 95% in ASBR Ⅰ. When the volume load of NH₄⁺-N in SBR is 0.30 kg/(m³·d),and HRT is 12 h,the effluent mass ratio of NH₄⁺-N and NO₂^--N is close to 1:1.32 in SBR. Anammox reaction occurs in ASBRⅡ. The NH₄⁺-N and NO₂^--N can be removed synchronically. When the total nitrogen volume load in ASBRⅡis 0.44 kg/(m³·d),and the HRT is 12 h,the removing rate of NH₄⁺-N is 95% and the removing rate of NO₂^--N 98% in ASBRⅡ. After a 75-day continuous cultivation,the reactor is started up successfully.

Key words: anaerobic sequencing batch reactor(ASBR), sequencing batch reactor(SBR), short-cut nitrification, anammox, livestock wastewater

中图分类号: 

• X703.1