SMBRIVCW系统处理高浓度综合污水肖恩荣

28920089　　　　　　ActaScientiaeCircumstantiaeVol.28,No.9Sep.,2008:(No.39925007);“”(No.2002AA60121);(No.2006AA305A03)SupportedbytheChineseNationalDistinguishedYouthScienceFoundation(No.39925007),theChina863High-TechProgram(No.2002AA601021)andtheKeyScienceTechnologyProjectofHubeiProvince(No.2006AA305A03):(1978—),,,E-mail:[e-mail];＊(),E-mail:[e-mail]:XIAOEnrong(1978—),female,Ph.D,E-mail:[e-mail];＊Correspondingauthor,E-mail:[e-mail],,,.2008.SMBR-IVCW[J].,28(9):1785-1792XiaoER,LiangW,HeF,etal.2008.ApplicationofanSMBR-IVCWsystemtotreathighconcentrationintegratedwastewater[J].ActaScientiaeCircumstantiae,28(9):1785-1792SMBR-IVCW肖恩荣,梁威,贺锋,成水平,吴振斌＊中国科学院水生生物研究所淡水生态与生物技术国家重点实验室,武汉430072:2007-07-31　　　:2008-01-03　　　:2008-05-27:,———-(SMBR)———(IVCW)SMBR-IVCW.SMBR-IVCW,.,SMBR-IVCW,SMBR、,IVCW、,.:SMBR1000L·d-1,IVCW375mm·d-1;,SMBR-IVCW19.22h,CODCr、TP、NH+4-N11.0、0.086、0.44mg·L-1,Ⅲ(GB3838-2002).SMBR-IVCW.:-;;;;:0253-2468(2008)09-1785-08　　　:X703.1　　　:AApplicationofanSMBR-IVCWsystemtotreathighconcentrationintegratedwastewater　XIAOEnrong,LIANGWei,HEFeng,CHENGShuiping,WUZhenbin＊StateKeyLaboratoryofFreshwaterEcologyandBiotechnology,InstituteofHydrobiology,ChineseAcademyofSciences,Wuhan430072Received31July2007;　　　receivedinrevisedform3January2008;　　　accepted27May2008Abstract:Inordertoimprovethequalityandefficiencyofwastewatertreatment,acombinationofSMBRandIVCW(IntegratedVertical-flowConstructedWetland),whicharerepresentativesofbiologicaltreatmenttechnologyandecologicalpurificationtechnology,wasappliedtotreathighconcentrationwastewaterforreuse.BycomparingthepurificationeffectsoftheSMBR-IVCWsystemunderdifferenthydraulicloadingrates,theoptimalhydraulicconditionsofthecombinationsystemwereobtained.Theresultsshowedthatthiscombinedsystemhadgoodstabilityandhighpurificationperformance.TheSMBRmainlycontributedtoremovingtheorganicsandnitrification,whiletheIVCWmadecontributionstothedenitrificationandfurtherdephosphorization.TheoptimalhydraulicloadingratesoftheSMBRandIVCWwere1000L·d-1and375mm·d-1respectively.Underthoseconditions,theconcentrationsofCODCr,NH+4-NandTPintheeffluentofthesystemwere11.0mg·L-1,0.086mg·L-1and0.44mg·L-1respectively,whichcameuptotheClassⅢofthenationalenvironmentalqualitystandardsforsurfacewater.TheSMBR-IVCWshowsgoodpotentialfortreatingsuchwastewater.Keywords:submergedMBR;integratedvertical-flowconstructedwetland;combinedtechnology;highstrengthintegratedwastewater;wastewatertreatment1　(Introduction)-(MBR)、(Stephensonetal.,2000);,MBRDOI:10.13671/j.hjkxxb.2008.09.024　　　　　　　　　　28(Ahnetal.,2002;Yildizetal.,2005).,-CODCr、SS、NH+4-N,TN、TP(Rosenbergeretal.,2002;Shinetal.,2005).,、(Hammer,1989;,1993),N、P(,2004;,2001).,,,、.2,-,MBRN、P,.-(SMBR)(Ganderetal.,2000)(IVCW)(,2003)(SMBR-IVCW),.2　(Materialsandmethods)2.1　SMBR-IVCW组合系统SMBR-IVCW1.SMBR320L,(PVDF),4m2,0.2μm,/0.6/1.0mm,500ku..IVCW:1m×1m,0.5～2mm,55cm,45cm,,;“H”,“H”..SMBR,,,IVCW,IVCW、,、、,.1　SMBR-IVCWFig.1　SchematicdiagramofthecombinedSMBR-IVCWsystem2.2　实验设计(Wuetal.,2007),SMBR,(7.0±0.5)g·L-1,(6.0±0.5)m3·h-1,/4min∶1min,25～30d.SMBR,,,15cm,,,.22～4h().3,.IVCW,4,4.,SMBR-IVCW25～35℃;7,1(1).,、、、;.17869:SMBR-IVCW1　SMBR-IVCWTable1　TheexperimentalconditionsoftheSMBR-IVCWsystemSMBRHLR/(L·d-1)Jv/(L·m-2·h-1)HRT1/hIVCWα/(mm·d-1)HRTa2/hSMBR-IVCWHRTb/hR15005.215.412534.5649.96R27507.81.2187.523.0433.24R3100010.57.725017.2824.98R4125013.06.225017.2823.43R5150015.65.137511.5216.62R6150015.65.1187.523.0428.14R7100010.57.737511.5219.22　　:a.IVCW0.36,b.HRT=HRT1+HRT2.2.3　分析方法CODCr、TN、TP、NH+4-N、NO-3-N(,2002).3　(Results)3.1　COD去除效果SMBR-IVCWCOD2.,7CODCr,0～30mg·L-1.SMBR,CODCr800～1200mg·L-1,,SMBRCODCr50mg·L-1,SMBRCODCr96%～98%.IVCWCODCr.R3R7,SMBR,IVCW250、375mm·d-1,IVCWCODCr59.63%±3.49%、54.29%±4.13%;2CODCr(9.9±2.4)、(11.0±2.4)mg·L-1.,R5R6IVCW375、187.5mm·d-1,CODCr48.39%±4.76%,57.76%±1.14%.,IVCWCODCr.2　SMBR-IVCWCODCrFig.2　CODremovalbytheSMBR-IVCWunderdifferenthydraulicloadingcombinations3.2　N去除效果,SMBR-IVCWTN(3a);NH+4-N,1.07～4.86mg·L-1(3b);NO-3-N4.0～15.0mg·L-1(3c).SMBRTN,HLR=1000L·d-1;NH+4-N,97.60%±0.48%92.53%±0.97%;NO-3-N.IVCWTN1787　　　　　　　　　　28;NH+4-N;NO-3-N.3　SMBR-IVCWNFig.3　NitrogenremovalbytheSMBR-IVCWunderdifferenthydraulicloadingcombination17889:SMBR-IVCW3.3　TP去除效果4,7,SMBR-IVCWTP0.2mg·L-1;R1、R2、R3、R70.1mg·L-1.SMBR(500L·d-11500L·d-1),TP(83.75%±0.69%75.84%±3.94%).IVCWTP,785%～92%.4　SMBR-IVCWTPFig.4　TPremovalbytheSMBR-IVCWunderdifferenthydraulicloadingcombinations4　(Discussion)4.1　SMBR-IVCW系统中各单元的贡献,SMBR-IVCW,COD、TP.,SMBR;IVCW.SMBR,,,,.,,SMBR、IVCWCOD.P,SMBR、IVCW.SMBR,、、,,P.,SRT,SMBRTP.,,、.IVCWTP,,.IVCW,P、、,P(Richardsonetal.,1985;Njauetal.,2003);,P,P.(0～2mm),,(4),,,.TN.(5),TNNH+4-N(66%)(33%),SMBR-IVCWNO-3-N,NO-3-N.,、SMBR、IVCWNH+4-N,NO-3-N.,SMBR、,,NO-3-N,NO-3-N(65%).IVCWNO-3-N(85%),NO-3-N1789　　　　　　　　　　28(3c).N、.,.,.SMBR,(SRT),,,(Zhangetal.,1996;Lietal.,2006);,,,,NO-3-N.IVCW,、、、,N,,IVCW(,2004).,SMBRNH+4-N90%(3b);IVCWTN40%～60%.(2004),IVCWC/N(,2005).5　SMBR-IVCWN(NO-2-N,,In,SESMBR,IEIVCW)Fig.5　ThepercentageofallformsofNintheinfluentandeffluentoftheSMBR-IVCWunderdifferenthydraulicloadings