aombr生物脱氮工艺试验分析word格式论文.docxVIP

模型。COD去除动力学模型为Ce?C00.001343*?PXP，NH4+-N去除动力学模-12型为Ne ?[15.01??VP?P ?10(0.051T?1.158)??N0]??Ne?10(0.051T?1.158)N0??0，TN去除动力学模型为ne??(1??R)nA??0.007397XA??A??n0 。R关键词：A/O-MBR；生物脱氮；活性污泥；重金属；动力学模型AbstractA/O-MBRbiologicaldenitrificationprocessisanewcombinationtypeofwater treatmentprocess.Comparedwiththetraditionalbiologicaldenitrificationtechnology, dueto the efficientinterceptfeatureofMBR,generationcyclelongernitrifying bacteriatogettrappedinmembranebioreactorandenrichment.Soithasamore completenitrationreactionandabetterdenitrificationeffect.Thissubjectbasedon theprincipleoftreatingammonianitrogencontainingheavymetalchemical wastewaterinZhuzhou,andresearchedonthebiologicaldenitrificationprocessof A/O-MBR.Researchconclusionshaveaimportantguidingsignificancefortheactual projectoperation,andalsoplayapositiveandpromotingroletoprotectthewater environmentandwaterbalanceofxiangjiangriver.Firstofall,researchonthestartofA/O-MBRsystem.The resultsshowthatform basicallynonitrificationtohavesignificantnitrificationneedaprocess,thisprocess lastsformorethanaweekatleast.IntheprocessoftheoperationofA/O-MBR,you canobservethechangesofpHintheaerationtanktodeterminethepresenceand degreeofnitrationreaction.Further,byobservingtheratioofsludgesettling,the supernatantabsorbance,thechangesoftheconcentrationofdissolvedoxygeninthe aerationtank,aswellasthesludgeflocsobservation,inacertainextent,reflectthe biologicalactivityofthesludgeinthereactor,andthentodeterminetheeffectof aerobicmicrobialonthedegradationoforganicpollutants.ThenfocusesonresearchingtherunningcharacteristicsofA/O-MBRbiological denitrificationprocess.TheresultsshowthatA/O-MBRprocesshasaverygood removalefficiencyoforganicmatter.Membraneforremovaloforganicpollutantshas certaincontribution,butthebiodegradationrateishigherthanthemembraneinthe removalrateofCOD.A/O-MBRprocesshasahighremovalrateofammonia nitrogen,themaximumvalueof99.8%,andinmostofthetimethewaterstable below1mg/L.Interceptionofmembraneontheremovalrateofammonianitrogen con