PFMBR处理城市生活污水的试验研究赵如金

PF－MBR212013PF－MBR。DOCODNH+4－NHRT＞6hCODNH+4－NCODNH+4－NCODNH+4－NCODNH+4－N。PF－MBRCOD96．0%NH+4－N93．3%。、。X703C1000－4602201123－0092－04StudyonMunicipalDomesticSewageTreatmentwithPF-MBRZHAORu-jinZHUFei-feiWUChun-duCHUJin-yuXIEQing-jieSchoolofEnvironmentJiangsuUniversityZhenjiang212013ChinaAbstractInordertoincreasethebiochemicaltreatmentefficiencyofpollutantsinMBRaMBRwithpowderedferritePF-MBRwasdesignedandusedtotreatmunicipaldomesticsewage．TheresultsshowthattheremovalratesofCODandNH+4－NincreasewiththeincreaseofDO．TheremovalratesofCODandNH+4－NarenotsignificantlyaffectedbyHRTwhenitismorethan6h．TheremovalratesofCODandNH+4－Nincreasemarkedlywiththeincreaseofthedosageofpowderedferrite．ItindicatesthattheincreaseofpowderedferritedosageisusefulfortheremovalofCODandNH+4－N．TheremovalratesofCODandNH+4－Nincreasewiththeincreaseofthespecificsaturationmagnetizationintensityofpow-deredferritebutnotbymuch．DuringstableoperationtheremovalratesofCODandNH+4－Nare96．0%and93．3%respectively．ThemechanismanalysisshowsthattheincreasingoftheremovalratesofpollutantsisduetothecombinedactionofmicrobialdegradationandmagneticfieldenergyafteraddingpowderedferritetoMBR．KeywordsMBRwithpowderedferritePF-MBRmunicipaldomesticsewageremovalratespecificsaturationmagnetizationintensity“”2003AA6011003－31281370009。。·29·2723201112CHINAWATER＆WASTEWATERVol．27No．23Dec．2011MBR。1～3、MBR、。MBR。PF－MBR。。11.11。PF－MBR30L。PVDF0．2μm。。1Fig．1Schematicdiagramofexperimentalreactor1.2、、、、、COD156～482mg/LTN25～48mg/LNH+4－N16～31mg/LTP1．2～5．6mg/LSS56～118mg/LpH6．5～8．5。1.3、10min、2min25℃。10min。CODNH+4－NMLSSDOJPB－607LEICADFC300FX4HFVSM。1.4。25℃。3500mg/L5100mg/L。。5100mg/L。22.1DOCODNH+4－NHRT6h、0．5g/L、61．2emu/gDOCOD2。DOCODNH+4－N。DO＞0．6mg/LCOD13mg/L＞96．0%DO＜0．6mg/LCOD。DO。2CODCODCOD。·39·．watergasheat．comPF－MBR27232DOCODNH+4－NFig．2InfluenceofDOconcentrationonremovalofCODandNH+4－NDO＞0．8mg/LDONH+4－N90．2%～95．4%DO0．8～3．8mg/LDO＜0．8mg/LDONH+4－N。NH+4－N。PF－MBRDONH+4－N。NH+4－NNH+4－NNH+4－N。2.2HRTCODNH+4－NDO2．1mg/L、0．5g/L、61．2emu/gHRTCODNH+4－N。HRT6～12hPF－MBRCOD96．4%CODHRT＜6hHRTCODHRT4hCOD89．4%COD40．5mg/L。HRT。HRT6hHRT93%NH+4－N2mg/LHRT＞6hHRTNH+4－NHRT4hNH+4－NNH+4－N82．3%。2.3CODHRT6h、DO2．1mg/L、61．2emu/gCODNH+4－N。0～0．8g/LCODCODNH+4－N0．5g/L0．8g/LCODNH+4－N0．5g/L。2.4HRT6h、DO2．1mg/L、0．5g/LCOD3。3CODNH+4－NFig．3InfluenceofspecificsaturationmagnetizationintensityofpowderedferriteonCODandNH+4－Nremoval·49·2723．watergasheat．com348．6～69．8emu/gCODNH+4－N48．6emu/g69．8emu/gCOD96．4%97．3%NH+4－N92．5%94．1%。。2.5PF－MBRHRT6h、DO2．1mg/L、0．5g/L、61．2emu/gPF－MBRCODNH+4－N4。PF－MBRCOD30dCOD96．0%。CODCODPF－MBR。PF－MBR93．3%。4PF－MBRFig．4RemovalefficiencyofpullutantsbyPF-MBR3MBR、。MBR。、。。、、。COD、NH+4－N。4DOHRTPF－MBRCODDOCODHRT＞6hCOD。COD0．5g/L。COD。PF－MBRCOD96．0%NH+4－N93．3%。MBR、。1HollerSTroschW．Treatmentofurbanwastewatertreat-mentinamembranebioreactorathighorganicloadingratesJ．JBiotechnol200192295－101．2．J．20072319103－105．3ZhangShoutongYangFenglinLiuYihuietal．Perform-anceofametallicmembranebioreactortreatingsimulateddistillerywastewaterattemperaturesof30to45℃J．Desalination20061941/[e-mail]2011－05－17·59·．watergasheat．comPF－MBR2723