搜索
4 10环境工程学报Vol.4,No.10201010ChineseJournalofEnvironmentalEngineeringOct.2010王丹丹1,2 刘淑杰2＊ 陈福明2 李朝林1 赵晶晶2 李旭宁2(1.,518055;2.,518057) 、、HRT,(RPIR)C/N。,1mg/L、COD2.5kg/m3·d、NH+4-N0.2kg/(m3·d)、HRT4h,COD90%,NH+4-N80%。RPIR,,。 X703 A 1673-9108(2010)10-2244-05Studyoneffectformunicipalwastewatertreatmentusingreaction-precipitationintegratedrectangularairliftloopreactorWangDandan1,2 LiuShujie2 ChenFuming2 LiChaolin1 ZhaoJingjing2 LiXuning2(1.HarbinInstituteofTechnologyShenzhenGraduateSchool,Shenzhen518055,China;2.ResearchInstituteofTsinghuaUniversityinShenzhen,Shenzhen518057,China)Abstract Apilot-scalereaction-precipitationintegratedrectangularairliftloopreactor(RPIR)wasusedtoinvestigatetheeffectoforganicsandnutrientremovalinlowC/Nratiomunicipalwastewaterunderdifferentcon-ditions.Theconditionsincludedthedissolvedoxygen(DO),theorganicloadingrate(OLR)andthehydraulicretentiontime(HRT).TheresultsshowedthattheremovalofCODandnitrogenwasupto90%and80%,re-spectivelyattheloadingratesof0.5～2.5kgCOD/(m3·d)andlowerthan0.2kgnitrogen/(m3·d),whentheDOwascontrolledatthelevelof1mg/LandtheHRTwasmaintainedat4hours.RPIRshowedgoodresist-ancetoshockloading,excellentcontaminantremovalcapacityandoperatingstability.Keywords municipalwastewater;integration;airliftloopreactor:(2007003):2009-10-21;:2009-12-07:(1980～),,,。E-mail:wddhrb@163.com＊,E-mail:shuiyun16@163.com -、、,、、。UNI-TANK、。UNITANK,[1],[2],。,,,、[3]。(membranebioreactor,MBR),,,,[4][5]。RPIR,,。[6]40000mg/L,3000mg/L,,,HRT,。,。RPIR,,,。,10:。,RPIR[7],HRT4h(GB18918-2002)B,RPIR,,。RPIR,、HRT、,RPIR,RPIR。1 1.1 RPIR(1),3m3,2m3,1m3,。,,,,, 。。,。1 RPIRFig.1 SchematicdiagramofRPIRsetup1.2 ,(200810～20095),1。1 Table1 Influentquality(mg/L)CODBOD5SSNH+4-NTNNO-2-NNO-3-NTP212.5～538.1120～280259～70513.3～51.830.4～76.20～0.2240～0.1193.1～7.7358.8180.744635.559.80.040.035.41.3 COD:-;TP:;NH+4-N:;TN:-;NO-3-N:;NO-2-N:N-(1-)-;SS:;DO:HACHHd-30;BOD5:;[8]。1.4 RPIR,,(MLSS)10000mg/L。RPIRMLSS10000mg/L,,,MLVSS/MLSS0.40。MLVSS/MLSSSS。200810～20095,(DSS)(TSS)34%～49%,40%。,,,,,SS。HRT(),。。2 2.1 ,(DO)。22454,DO2～4mg/L。DO(0.5～4mg/L),[9]。,DO,。MLSS10000mg/L,HRT4h,,DO0.4、0.6、0.8、1、1.52mg/L,1,,2。2,DO0.4～2mg/LCOD(88%～92%),NH+4-NDO。DO,。,DO0.5～0.7mg/L。DO1mg/L,NH+4-N83%～86%,。,DO1mg/L,RPIRCODNH+4-N,。2 DOCODNH+4-NFig.2 EffectofDOconcentrationonremovalefficiencyofCODandNH+4-N2.2 。[10],、、,TPCODTN。HRTCOD,2,CODCOD、。,DO1mg/L,MLSS10000mg/L。34。3,COD0.5～2.5kg/(m3·d),COD,40mg/L。COD2.5～3.0kg/(m3·d),COD,COD50mg/L。,COD。COD50mg/L,COD2.5kg/(m3·d)。4,COD0.5～2.5kg/(m3·d),NH+4-N,85%,NH+4-N0.6～4.9mg/L。COD,NH+4-N,NH+4-N,62.7mg/L,NH+4-NNH+4-N。,NH+4-NNH+4-N5。5,NH+4-N,NH+4-N:NH+4-N0.06kg/(m3·d)3.9kg/(m3·d),224610:5 NH+4-NNH+4-NFig.5 EffectofNH+4-NvolumeloadingrateonNH+4-NremovalefficienciesNH+4-N98%68%,NH+4-N0.6mg/L16.8mg/L。NH+4-N0.2kg/(m3·d),NH+4-N5mg/L。,RPIRCOD2.5kg/(m3·d),NH+4-N0.2kg/(m3·d)。2.3 HRTDO1mg/L、MLSS10000mg/LHRTCODNH+4-N6。6 HRTCODNH+4-NFig.6 EffectofHRTonCODandNH+4-Nremovalefficiencies6,HRT6.6h3.3h,COD83%92%,NH+4-N92%74%。,0.1gBOD5/(gMLSS·d),。HRT6.6h,0.06gBOD5/(gMLSS·d),。,,,[11]。,PRIR,HRTCOD。,5%[12],,。0.1～0.15gBOD5/(gMLSS·d),[13]。HRT3.3h,0.17gBOD5/(gMLSS·d),,NH+4-N。HRT4h,0.14gBOD5/(gMLSS·d),NH+4-N。,HRTNH+4-N。HRTRPIR,,HRT,RPIR,,。,RPIRHRT4h,COD90%,NH+4-N84%,(COD31.3mg/L,NH+4-N3.8mg/L)《》(GB18918-2002)A(COD50mg/L,NH+4-N5mg/L)。2.4 HRT4h,DO1mg/L,MLSS10000mg/L,RPIR1,(TN)7。7 Fig.7 RemovalefficiencyofTN7,TN30.4～76.2mg/L,24.5～70.4mg/L。,TN31%,65%。TN。RPIR--,,22474,,,,TN。COD/TN(8),,TN,。8 COD/TNFig.8 FluctuatingstateofCOD/TNratioininfluent8,120dCOD/TN(2.7～12.7),5.7。,,,COD/TN10[14～16]。,C/N。3 (COD200～400mg/L,NH+4-N20～30mg/L),DO1mg/L,MLSS10000mg/L,HRT4h,RPIRCOD90%,NH+4-N80%,CODNH+4-N50mg/L、5mg/L。,COD2.5kg/(m3·d),NH+4-N0.20kg/(m3·d)。,RPIR31%,TN40mg/L,。,,,PRIR,,。[1],..,2006,(1):108～109[2],,,..,2006,34(5):57～59[3],,,..,2004,7(6):42～45[4]AnthonyG.Fane,ShengChang,E.Chardon.Submergedhollowfibremembranemodule-designoptionsandopera-tionalconsiderations.Desalination,2006,146(1～3):231～236[5],,.MBR.,2009.946～950[6]FahidK.J.Rabah,MohamdF.Dahab.Nitrateremovalcharacteristicsofhighperformancefluidized-bedbiofilmre-actors.WaterResearch,2004,38(17):3719～3728[7],,,..,2007,23(23):34～37[8]《》.(4).:,2002[9],,..,2001,14(1):33～35[10],.TP.,2001,23(2):30～34[11],,,..:,2002[12],..:,1998[13],,..,1998,24(12):6～9[14],.MBR.,2005,25(10):1325～1329[15],,,..,2008,29(3):654～659[16]FontenotQ.,BonvillainC.,KilgenM.,etal.Effectsoftemperature,salinity,andcarbon:Nitrogenratioonse-quencingbatchreactortreatingshrimpaquaculturewastewater.Bioresour.Technol.,2007,98(9):1700～17032248