摘要
本文探索了应用循环曝气膜生物反应器富集培养厌氧氨氧化菌,并处理含氮废水的可行性。通过曝气量对膜通量影响的实验,确定最佳曝气量为0.2 m^3/h。通过对曝气量对厌氧氨氧化菌活性的实验,相比无曝气条件,在曝气量为0.2 m^3/h的条件下,厌氧氨氧化活性未受到影响。在长期实验中,该反应器的氮负荷及氮去除率高达1.8 kg TN/m^3·d及80%。相比无曝气条件,保持曝气量为0.2m^3/h时,膜清洗周期从6天延长到36天。
In this study,the feasibility of apply cyclic aeration membrane bioreactor to enrich the anammox bacteria and treat nitrogen-containing wastewater was employed.Through experiments,the impact of aeration to membrane flux can be found,.and the optimum aeration rate was 0.2 m^3/h.The experiments which test the impact of aeration rate to the activity of anammox bacteria showed that aeration of 0.2 m^3/h had no significant effect to anammox activity.In long-term experiments,the nitrogen load of the reactor was up to 1.8 kg TN/m^3·d and the nitrogen removal rate was up to 80%.Compare with no aeration,aerationof 0.2 m^3/h has extend the membrane cleaning cycle from six days to 36 days.
出处
《山东化工》
CAS
2017年第19期167-169,共3页
Shandong Chemical Industry
关键词
厌氧氨氧化
膜生物反应器
循环曝气
膜污染
ANAMMOX
membrane bioreactor
circulating aeration
membrane fouling
