AOMBR处理高氨氮废水的效能稳定性及影响因素研究高宇学

68　　　　Vol.33　No.8　2007AOMBR处理高氨氮废水的效能稳定性及影响因素研究高宇学　文一波(,　101102)　　　对AOMBR(缺氧好氧膜生物反应器)处理高氨氮废水的脱氮效能进行了研究,着重考察了硝化效能的稳定性及影响系统稳定运行的因素。研究结果表明:在适宜的pH、DO和温度下,容积负荷1.5kgNH3-N/(m3d)时,硝化率可保持在99%以上;好氧池中DO1.5mg/L能满足硝化需要;好氧池pH维持在6.8～7.2时可稳定高效地去除氨氮;碱度、污泥龄等也会对硝化效率产生影响。在好氧池中硝化率较高的情况下,影响反硝化效果主要是回流比和碳源。　AOMBR　高氨氮废水　NH3-N去除率　反硝化StudyonperformancestabilizationandinfluentfactorsofAOMBRtreatinghigh-loadingammonianitrogenwastewaterGaoYuxue,WenYibo(SoundGroupCo.,Beijing101102,China)Abstract:Nitrificationanddenitrificationperformanceofanoxic/aerobicmembranebioreactor(AOMBR)treatinghigh-loadingammonianitrogenwastewaterwasstudied.Themainattentionsarelaidonthestabilizationandinfluentfactorsofnitrificationperformance.TheexperimentalresultsshowedthattheremovalrateofNH3-Nwas99%ormorewhenNH3-Nvolumetricloadingratewasmaintainedunder1.5kgNH3-N/(m3d).IntimewhenDO1.5mg/Linaerobictank,thenitrificationcanrealizecommendably.WhenpHwasmaintainedinrangeof6.8～7.2,AOMBRcanremoveammonianitrogenstably.TheremovalrateofNH3-Nwasalsoaffectedbyalkalinityandsludgeage.ThemaininfluencingfactorsofdenitrificationperformancewerereturnflowratioandC/Nwhennitrificationwasaccomplishedwell.Keywords:Anoxic/aerobicmembranebioreactor;High-loadingammonianitrogen;TheremovalrateofNH3-N;Denitrification0　,[1,2],。AOMBR(),,,,。1　1.1　AOMBRAOMBR1。51L,105L。。,10min,5min。(PVDF),0.2μm,1m2。DOI:牨牥牨牫牱牳牴牤jcnkiwwe牨牴牰牬牪牥牥牱牥牳牥牥牳　Vol.33　No.8　200769　　　23～25℃,MLSS6～7g/L9.5～10g/L。,4L/h。1　2　3　4　56　7pH　8　9　10　11　12　131　1.2　。,,NH4Cl386～4860mg/L、CH3OH0.3～2.5mL/L、K2HPO43H2O22～37mg/L,Na2CO3NaOHCODCr。1.3　[3],N(1)[3],[3],[3],COD[3],DOOrion805A+,pHPHS-25CprecisionPH/mVMeter。2　2.1　2,pH、DO,914.48mg/L,C/N1.5～2,2,1.5kgNH3-N/(m3d),4.92mg/L,99.4%,,。1.5kgNH3-N/(m3d),,。2.2　DO,DO1.5mg/L。AOMBR,DO2　。,DO3mg/L、DO1.5mg/L,。,DO。,DODO[4]。2.3　pHpH7～8。,pH8.5,,pH9,,,,。pH:;。pH3。3,pH6.2～8.5,,99%,,pH6.8～7.2。3　pH2.4　,,,。3%70　　　　Vol.33　No.8　2007Na2CO36%NaOHpH。4。4,(CaCO3,)80mg/L,99%,10～20mg/L,94%,。,,,。,80mg/L。4　2.5　,,,,AOMBR。,,200d,,0.5d0.3d,[5]。ECP()[6]。120d,ECPTOC,,。45d,17d,C/N3,2,1kgNH3-N/(m3d),60d,98%,70%,,,,。2.6　C/NAOMBR,,。pH7.5～9,DO0.4mg/L,C/N。1～1.1kgNH3-N/(m3d),2,C/N,。:,C/N。C/N1.073.28,28.85%70.06%,76.57%。C/N2.26,C/N,2,75%。,C/N。2.7　C/N3.2,2、3、470.07%、83.34%78.29%。:23,,34,。DO0.3mg/L,3,DO,。,,,。3　0.0155MPa,,:①,,1h;②,0.5%NaOH10h,1h;③,0.4%10h,1h;④,0.4%10h,。,,,,,,。,。。,,,,。,,。　Vol.33　No.8　200771　　　,,。,。。,,,,,、。,。,,,,。,。4　(1)AOMBR,1.5kgNH3-N/(m3d),99%。,1.5kgNH3-N/(m3d),,。(2)DO1.5mg/L,,DO1mg/L,,DO,,AOMBR,,DO。(3)pH6.2～8.5,,99%,pH68.5,,,,,。,AOMBRpH6.8～7.2。(4)80mg/L。1kgNH3-N/(m3d)、C/N3,45d,17d,98%,70%。(5)1～1.1kgNH3-N/(kgMLSSd),2,C/N,C/N2.26,;,C/N3.2,2、3、4,,3。(6)0.4%,。,。参考文献1　WangY,HuangX,YuanQP.Nitrogenandcarbonremovalsfromfoodprocessingwastewaterbyananoxic/aerobicmembranebioreactor.ProcessBiochemistry,2005,40(5):1733～17392　GaoM,YangM,LiH,etal.Comparisonbetweenasubmergedmembranebioreactorandaconventionalactivatedsludgesystemontreatingammonia-bearinginorganicwastewater.Biotechnology,2004,108(3):265～2693　《》..:,19984　LannbroekHJ,GerardsS.Competitionforlimitingamountsofoxygenbetweennitrosomanaseuropeanandnitrobacteriawinogradsbyigrowninmixedcontinuouscultures.ArchivesofMicrobiology,1993,159(5):453～4595　,,,..,2002,23(5):62～666　ZhangB,YammamotoK.Flocsizedistributionandbacterialactivitiesinmembraneseparationactivatedsludgeprocessesforsmall-scalewastewatertreatment/reclamation.WatSciTech,1995,35(6):37～44　　☆E-mail:[e-mail]:20070123:20070426辽河石化投巨资控制污染　　,,、。20074,,、、、,。。,,,。,,1.25,11.44m3/d,10。