好氧序批式MBR处理高浓氨氮废水

好氧序批式MBR处理高浓氨氮废水好氧序批式MBR处理高浓氨氮废水杨宗政,顾平,刘静文(天津大学环境科学与工程学院,天津300072)摘要:采用好氧序批式膜生物反应器(SMBR)处理高浓度氨氮废水,考察了对NH+4-N和COD的去除效果、影响硝化效果的因素以及混合液中残留COD与膜通量的关系。结果表明:在HRT为4.7h、SRT为30d、气水比为100∶1、pH值为7.0～8.0、进水COD平均值为142.8mg/L的条件下,当进水氨氮高达800mg/L时出水氨氮值仍能稳定在10mg/L以下,出水COD平均值为31.3mg/L。关键词:序批式膜生物反应器;高浓度氨氮废水;硝化反应;膜比通量中图分类号:X703.1文献标识码:C文章编号:1000-4602(2005)03-0053-04AerobicSequencingMBRforTreatmentofHighConcentrationAmmoniaNitrogenWastewaterYANGZong2zheng,GUPing,LIUJing2wen(SchoolofEnvironmentalScienceandEngineering,TianjinUniversity,Tianjin300072,China)Abstract:AerobicsequencingMBRwasusedfortreatmentofhighconcentrationammonianitrogenwastewatertoinvestigateNH+4-NandCODremovaleffect,factorsaffectingnitrificationeffect,andtherelationbetweenresidualCODinmixedliquorandmembraneflux.Theresultshowsthatunderthecondi2tionsofHRT4.7h,SRT30d,air2waterratio100∶1,pH7.0-8.0,andaverageinfluentCODvalue142.8mg/L,wheninfluentammonianitrogenisashighas800mg/L,theeffluentammonianitrogencanbeconstantatlessthan10mg/LandCODisaverage