A2O及倒置A2O工艺脱氮效率的计算与分析李文达

44420188EnvironmentalProtectionScienceVol．44No．4Aug．201854～562018－03－171621023104021989－。。[e-mail]2/OA2/O1121．4500002．451191A2/OA2/O。rnrwθc、。A2/OA2/OX703．1ADOI10．16803/j．cnki．issn．1004－6216．2018．04．009CalculationandAnalysisofDenitrificationEfficiencyonA2/OandＲeversedA2/OProcessLiWenda1SunZhenyu1ZhouJijun21．HenanBranchJiangsuＲainFineEnvironmentTechnologyCo．Ltd．Zhengzhou450000China2．SchoolofＲesourcesandEnvironmentHenanInstituteofEngineeringZhengzhou451191ChinaAbstractAccordingtotheprincipleofmaterialbalancearigorousmathematicalderivationofthedenitrificationefficiencyofA2/OandreversedA2/Oprocesswasconductedandformulasofthenitrogenremovalefficiencywasobtained．Enhancementofthemixed－liquorrecycleratiornandthesludgerefluxratiorwandreductionofthesludgeageθccouldimprovethedenitrificationefficiency．Howeverwiththeaimatmaintainingeconomicandefficientoperationofthetreatmentsystemtheseparametersshouldbewithinareasonablerange．KeywordsA2/OProcessＲeversedA2/OProcessDenitrificationEfficiencyMixed－liquorＲecycleＲatioSludgeＲefluxＲatioSludgeAgeCLCnumberX703.1A2/OA2/O、1。2－78。rnrwθc。1A2/O1.1A2/OA2/O、、、1。1A2/OQm3/dQw4A2/OA2/O55m3/dTNimg/LTNemg/LS0BOD5mg/LSeBOD5mg/Lrnrw。1.29ΔXv=YobsQS0－Se1Yobs=Y1+Kdθc2ΔXvMLVSSg/dYobsgMLVSS/gBOD5YgMLVSS/gBOD5Kdd－1θcd。C5H7NO2ΔXN=0．1239YobsQS0－Se31.3NO－x－NNO－x－N1=+++NO－x－NNO－x－N0.3%～0.5%10QwQTNi=QTNe+rn+rwCNOx+0．1239YobsQS0－Se4NO－x－NCNOx=TNeCNOx=TNi－0．1239YobsS0－Se1+rn+rw5η=TNi－CNOxTNi6η=rn+rw1+rn+rw+0．1239YobsS0－Se1+rn+rwTNi6A2/OY0.4～0.80.6Kd0.04～0.0750.06d－1θc10～20d15dYobs=0.61+0.06×15=0.31586η=rn+rw1+rn+rw+0．039S0－Se1+rn+rwTNi71.47rnrwrnrwＲ=rn+rwη=Ｒ1+Ｒ+0．039S0－Se1+ＲTNi88S0=200mg/LSe=20mg/LTNi=40mg/Lη'=11+Ｒ2－0．17551+Ｒ29η'＞0ηＲ82。2A2/OＲ2Ｒ0～200%。rwMLSS11NO－xrw25%～100%rn564412rn50%～200%。θcKd2Yobs=Y1+KdθcYobsθcA2/Oθc10～20d。2A2/O2.1A2/OA2/O。A2/OA2/O3。3A2/O2.2A2/O3A2/Oη=rn+rw1+rn+rw+0．1239YobsS0－Se1+rn+rwTNi1010A2/O8。NO－x。A2/Ornrwrw25%～100%rn1350%～200%。31A2/OA2/O。η=rn+rw1+rn+rw+0．1239YobsS0－Se1+rn+rwTNi2、rw25%～100%A2/OA2/Orn50%～200%。3θcθcA2/OA2/O10～20d。1．A2/OJ．2013291225－29．2．A2/OJ．2017243－49．3．A2/OJ．20122813129－132．4．MLSSA2/OJ．2017492163－168．5．A2/OJ．20148114762－4766．6．//A2/OJ．2014301310－14．7．A2/OJ．2015962532－2539．8．A2/OJ．2005348487－489．9．2M．2000．10．M．1982．11．4M．2015．12．A2/OJ．2008341238－41．13．A2/OJ．2008285388－390．