Abstract:

IMO-SBR which integrates the microbe immobilized technique with SBR is a new kind of wastewater treatment technology. It makes use of all the advantages of immobilized microorganisms and SBR， not only retains the immobilized microorganisms， but also makes use of the mature SBR technology. The bio-film carriers which fill with the reactor are made from polyurethane foam， and uses the actual highly concentrated ammonia-nitrogen wastewater as a research target. The effects of the three factors： temperature， influent m（C）∶m（N） ratio and pH，on the denitrification efficiency are investigated. The optimal operating conditions are finally confirmed. The experimental results show that when the temperature=30 ℃， m（C）∶m（N）=3∶1， and pH=8， the operating conditions are optimal， and ammonia-nitrogen removal rates are stabilized at 55% or more.

Key words: microbe immobilized technique, sequencing batch reactor, ammonia-nitrogen wastewater

摘要：

IMO-SBR工艺是结合了固定化微生物技术与SBR工艺的一种全新污水处理工艺。该工艺充分利用了固定化微生物和SBR的优点,既保留了固定化微生物,又较好地利用了成熟的SBR工艺。在实验反应器内装填由聚氨酯泡沫制成的生物膜载体,并以实际高浓度氨氮废水为研究对象,通过考察温度、进水m(C)∶m(N)、pH对IMO-SBR工艺脱氮效果的影响,确定最佳的运行条件为:温度在30℃、m(C)∶m(N)=3∶1、pH=8,该工艺条件下,氨氮去除率稳定在55%以上。

关键词: 固定化微生物技术, 序批式活性污泥法, 氨氮废水

CLC Number: 

• X703.1