倒置A2O污水处理工艺的特点及应用实例甘晓明

1　6环境工程学报Vol.1,No.620076ChineseJournalofEnvironmentalEngineeringJun.2007A2/O甘晓明1　邢绍文1　徐高田2　李　波3　邹伟国3(1.,200233;2.,200050;3.,200092)　　A2/O。A2/O,,A2/O。,CODA2/O,A2/OA2/O。　A2/O　　　X703　　　A　　　1673-9108(2007)06-0069-03CharacteristicsandapplicationofreversedA2/OprocessGanXiaoming1　XingShaowen1　XuGaotian2　LiBo3　ZouWeiguo3(1.ShanghaiAcademyofEnvironmentalSciences,Shanghai200233;2.ShanghaiEnvironmentalProtectionBureau,Shanghai200050;3.ShanghaiMunicipalEngineeringDesignInstitute,Shanghai200092)Abstract　ConventionalA2/Oprocessachievesatisfiedeffectonnitrogenremoval.Butit'sdifficulttoa-chievesatisfiedeffectonphosphorusremoval.PrincipleandcharacteristicsofconventionalA2/Oprocesshavebeenstudied.InreversedA2/Oprocessananaerobictankisputbeforeanoxictankanddesigndividualpointin-fallinaerobictankafteranoxictank.AndexperimentinasewageplanthasshowedthatphosphorusandnitrogenremovalratesofreversedA2/OprocessaremarkedlyhigherthanthatofconventionalA2/Oprocess,whereastheCODremovalratesareequal.Keywords　reversedA2/Oprocess;nitrogenremoval;phosphorusremoval:2006-04-17;:2006-08-21:(1979～),,,:。E-mail:[e-mail]1　A2/OA2/O、3[1]。[2]A2/O,A2/O:(1)、,。,、,,。———,,[3,4]。,,A2/O。,A2/O,。(2)、,;,,。,-[5,6]。,A2/O。。,。12　A2/OA2/O,A2/O。1,A2/O,,。50%～100%30%～50%,100%～200%,1～3h;50%～70%。,,,。,,,,。,,。1　A2/OFig.1　ProcessflowchartofpartedinfallreversedA2/O,,,,。,,、,。,,。,A2/O、,,,“”[7～9]。A2/O,,。,50%[10],,。:A2/O,,。,SVI,SVI、、,,。SVI100,4g/L,67%,65%,120%,,1.2+0.67=1.87Q。,2.87Q,1.87Q,;,、,,,SVI,,。,。　　　3　A2/O“+A2/O”。20053.12t,60%。。COD()1060mg/L,COD550mg/L,BOD200mg/L,SS400mg/L,TN45mg/L,TP3mg/L。。UPVC,:(1)。0.4m×0.4m,2.4m。(2)A2/O。6,:0.4m×0.7m×1m,:0.9m×0.7m×1m,4,0.65m×0.7m×1m。、,。(3)。0.6m×0.6m,1m,0.5m。15～23℃,18.5℃。100L/h,30L/h,70L/h。706:A2/O100%,150%。DO3～4mg/L,DO0.3mg/L。3.5～5g/L,4.2g/L。A2/O1(,)。1　A2/OTable1　Medium-sizedexperimenteffectofreversedA2/OCOD123BOD5123SS123TN123TP123(mg/L)5895475261741891654124224025142443.12.74.1(mg/L)8572698972732259770.40.40.6(%)85.686.886.995.495.295.893.492.493.882.483.384.187.185.285.4(%)86.495.593.283.385.9　　1,。,COD90mg/L,86%,100mg/L。BOD90%,10mg/L。TN9mg/L,80%。TP0.5mg/L,85%。,。4　　(1)A2/O、A2/O,。:①,,ORP,;②,;③,,。(2)A2/O,A2/O,CODA2/O,。(3)HRT。,HRT,。(4)。。[1],,.A2/O.,2001,17(8):19～21[2],,,.A2/O.,2003,29(3):22～26[3],,.A2/O.,2003,29(4):12～14[4],..,2000,26(12):1～4[5]KubaT.,etal.Biologicalphosphorusremovalfromwastewaterbyanerobic-anoxicsequencingbatchreactor.Wat.Sci.Tech.,1993,27(5/6):241～252[6].MLSS.,1993,19(8):15～17[7]MaekawaT.,Chun-MinL.,Xing-DongF.Nitrogenandphosphorusremovalforswinewastewaterusingintermittentaerationbatchreactorfollowedbyammoniumcrystalliztionprocess.WaterResearch,1995,29(12):2643[8]HolmKristensenG.,etal.CharacterizationoffunctionalmicroorganismgroupsandsubstrateinactivatedsludgeandwastewaterbyAUR,NURandOUR.Wat.Sci.Tech.,1997,25(6):43～57[9]Rorm,etal.Phosphateuptakeunderanoxicconditionsandfixed-filmnitrificationinnutrientremovalactivatedsludgesystem.Wat.Res.,1996,30(7):1573～1584[10]StrousM.,VanGervenE.,PingZ.,etal.Ammoniumre-movalfromconcentratedwastestreamswiththeanaerobicammoniumoxidation(anammox)processindifferentre-actorconfigerations.Wat.Res.,1997,31(5):1955～1962[11],.A2/O.,2000,16(7):15～1871