城市污水生化处理系统中总氮去除的影响因素分析黄宁

21320146JOUＲNALOFDONGGUANUNIVEＲSITYOFTECHNOLOGYVol．21No．3Jun．20142013－10－182012ZX07206004－04。*1989—。12*1．5230112．523808、、。HＲT3hr0.24kgTN·m－3·d－1、150%、10d、20℃A2/O30mg/LTN10mg/L70%A。A2/OX703A1009－0312201403－0069－051－2。B、3。4AA5－6。7。、8。。19。NH3-N/TN。NO－2。CO2－3、HCO－3CO2NH3、NH+4NO－210。12NH+4+1.383O2+1.982HCO－3→0.018C5H7O2N+0.982NO－2+1.036H2O+1.892H2CO31NO－2+0.003NH+4+0.01H2CO3+0.005HCO－3+0.4845O2→0.003C5H7O2N+0.008H2O+NO－3211。N2N2ONO－3+1.08CH3OH+0.24H2CO3→0.06C5H7O2N+0.47N2↑+1.68H2O+HCO33DOI:10.16002/j.cnki.10090312.2014.03.005702014NO－2+0.67CH3OH+0.53H2CO3→0.04C5H7O2N+0.48N2↑+1.23H2O+HCO34C5H7O2N+4NO－3→5CO2+NH3+2N2↑+4OH－5N2NO－3→NO－2→NO→N2O→N26、、。100t/dA2/O。22.1TNTN。TN。TN30mg/LTN1。1/hr11.522.533.544.5/m34.166.248.3210.412.4814.5616.6418.72TN/kgTN·m－3·d－10.720.480.360.290.240.210.180.1652500mg/L10d2mg/L0.1～0.2mg/L200%50%18～20℃。TN、1。1TN1TNTN3hrTN0.24kgTN·m－3·d－1TN70%。2.2TNTN。MLSS2500mg/L、SＲT10d、DO2mg/L、DO0.1～0.2mg/L、HＲT3hr、50%、17～20℃0、50%、100%、150%、200%、250%、300%、350%TN33TN2。3712TN2TN28%84.5%。150%TN10mg/L69.4%。150%～200%。7ηTN=Ｒ1+Ｒ7ηTNＲ7TN2。2TNTN、TN。2.3TNMLSS2500mg/L、200%、DO1.5mg/L、DO0.1～0.2mg/L、HＲT3hr、50%、17～20℃SＲT5d、6d、7d、8d、9d、10dTN15TN3。3TN3TNTN。7220142.4TNMLSS2500mg/L、200%、DO1.5mg/L、DO0.1～0.2mg/L、HＲT3hr、50%、SＲT10d15～26℃TN4。4TN4TN20℃TN20℃TN。3A2/O、、4TN3hr0.24kgTN·m－3·d－1TN70%TNTN150%TN10mg/L70%ATN10dTN20℃TN。1．J．2007410－12．2．2011Ｒ．2012．3．J．200316340－42．4．A2/OJ．200329322－26．5．AJ．2011628－29．6．AJ．2009525－29．7．J．2010423－27．8PochanaKKellerJLantP．ModeldevelopmentforsimultaneousnitrificationanddenitrificationJ．WaterScienceandTechnology．1999391235－243．9．J．200733139－42．10ZhuGPengYLiBetal．BiologicalremovalofnitrogenfromwastewaterJ．ＲeviewsofEnvironmentalContaminationandToxicology2008192159－195．11KlangduenPochanaJurgKeller．StudyoffactorsaffectingforsimultaneousnitrificationanddenitrificationSNDJ．WaterScienceandTechnology199939661－68．373AnAnalysisofＲemovalofTotalNitrogeninA2OSystemforTreatingMunicipalWastewaterHUANGNing1CHENBing-dong21．IndustryCenterofDongguanEnvironmentProtectionDongguan523011China2．HuihaiEnvironmentalProtectionTechnologyCo．LtdDongguan523808ChinaAbstractApilotscaleA2Osystemisusedforinvestigatingthemainparameterswhichinfluencetheremovaloftotalnitrogen．Theresultsrevealthattoreducethetotalnitrogenfrom30mg/Ltolessthan10mg/Lwhichcanmeetthefirst-classApermittedcriteriaofmunicipalwastewatertreatmentplantsthevolumeloadoftheanoxicpondshouldbelargerthan3hrcorrespondingvolu-metricloadingof0.24kgTN·m－3·d－1therefluxratioofthemixedliquidshouldexceed150%thesludgeageshouldnotlessthan10dandthewatertemperatureshouldbehigherthan20℃．Theresultscanbeappliedtotheremovalofthetotalnitrogeninmunicipalwastewatertreatmentplant．KeywordsmunicipalwastewatertotalnitrogenA2/Opilotstudy