微氧条件下厌氧折流板反应器运行特性研究_李刚

第3卷　第7期环境工程学报Vol.3,No.72009年7月ChineseJournalofEnvironmentalEngineeringJul.2009微氧条件下厌氧折流板反应器运行特性研究李　刚　周兴求　伍健东(华南理工大学环境科学与工程学院,广州510006)摘　要　对厌氧折流板反应器(anaerobicbaffledreactor,ABR)在微氧条件下的运行特性进行试验研究,分析了ABR在微氧条件下高效运行的可行性。研究结果表明,适量氧的加入能使ABR的COD去除率提高,出水VFA浓度降低。进水COD为4000mg/L,HRT为12h的相同条件下与厌氧相比,微氧ABR出水COD和VFA浓度的降幅分别为63.7%和66%;微氧ABR内氨氮的去除主要通过同步硝化反硝化和短程硝化反硝化作用;适量氧的加入可以提高微生物的产甲烷活性。关键词　微氧　厌氧折流板反应器　氨氮　颗粒污泥中图分类号　X703.1　　文献标识码　A　　文章编号　1673-9108(2009)07-1263-05StudyonperformancecharacteristicofanaerobicbaffledreactorundermicroaerobicconditionsLiGang　ZhouXingqiu　WuJiandong(CollegeofEnvironmentalScienceandEngineering,SouthChinaUniversityofTechnology,Guangzhou510006,China)Abstract　Inordertoanalyzethefeasibilityofthehighlyefficientlyandstableoperationoftheanaerobicbaffledreactor(ABR)underthemicroaerobiccondition.TheperformancecharacteristicoftheABRunderthemicroaerobicconditionwasinvestigated.TheresultsshowedthatsupplementoflimitedoxygencouldincreasetheCODremovalefficiencyanddecreasetheeffluentVFAconcentra