不同碳氮比下分段进水多级AO耦合MBR工艺的脱氮除磷性能研究李权

A/OMBR1121111.3003842.300051A/OMBR.C/N=8~124~7CODNH+4-NCOD17.9422.64mg/LNH+4－N2.101.29mg/LC/NC/NTNTN《》AC/N8~124~7.C/NA/OMBRX703.1A2095-719X201804-0298-05TheNitrogenandPhosphorusRemovalofMultilevelA/OStep-feedProcessCombinewithMembraneBioreactorUndertheDifferentC/NRatioLIQuan1WANGShaopo1WANGShunhe2LIBoyang1ZHANGPengda1SUNLiping11.TianjinKeyLaboratoryofAquaticScienceandTechnologyTCUTianjin300384China2.TheFirstDesignInstituteTianjinMunicipalEngineeringDesign&ResearchInstituteTianjin300051ChinaAbstractTheobjectofthisstudyistoinvestigatethenitrogenandphosphorusremovalonmultilevelanaerobic/oxic（A/O）step-feedcombinewithmembranebioreactorprocessunderthedifferentC/Nratio.Theresultsshowedthat，whentheinfluentC/Nratioisfrom8~12to4~7，theremovalefficienciesofCODandNH+4－Nwasnotsignificant.TheaverageeffluentofCODare17.94and22.64mg/Lrespectively，andtheaverageeffluentofNH+4－Nis2.10and1.29mg/Lrespectively.AndthesystemcandepresstheeffectofC/NontheremoveofTN，whichisabletomeetthe“dischargestandardofpollutantsformunicipalwastewatertreatmentplant”ofAinfirstgrade.ButtheTPremovalefficiencyissteadilydeterioratedwhentheinfluentC/Nratiodecreasedfrom8~12to4~7，therefore，chemicaldephosphorizationprocessisneeded.KeywordsC/NratioA/OprocessMBRprocessstep-feedinfluentnitrogenandphosphorusremoval2017-05-092017-11-27516783881992—.1975—[e-mail]jianUniversity24420188Vol.24No.4Aug.2018DOI10.19479/j.2095-719x.1804298[1].[2].[3].[4-6].[7]MBR.MBR201881.3TNNH+4－NTPTU-1910CODCM-02CODDO、pHHACHHQ40d.1.4A/O44MLSS2500~4500mg/L、DO0~0.50.5~3.0mg/LA/O/MBR.165cm55cm50cm300L0.5m3/d.A/OAO.OA.AA/OMBR.1.2A/O..1.66.7%[8]32.MBR[9-11]A/O、A2/OMBRA/OMBR.A/OSRT[12].A/O、[13].A/OMBRC/N.11.1A/OMBR1.1TN/mg·L-1NH+4－N/mg·L-1TP/mg·L-1COD/mg·L-1pH39.81~61.4835.4~58.792.26~11.37146~5257.2~7.9①⑦⑥⑤④③②A1O1A2O2A3O3A4O41A/OMBRA/OMBR299··244HRT15hC/N4~7、8~1230d.22.1C/NC/N=4~78~122-3.2C/N8~1215dTN90%11dTN15mg/LGB18918—2002《》[14]AC/N4~715dTN90%2d80%10dTN8mg/L80%.TNA.3C/NTNNH+4－NC/NNH+4－N3mg/L73.33%、86.67%.C/N4~12.[15]AO－MBRNH+4－NTN99.1%、75.8%[8]A2O-MBRNH+4－NTN94.7%、78.5%.C/N=8~124~7NH+4－N95.51%、97.14%TN89.26%、84.73%.TN.A/O[16]A/O“”“”[17]MBR.[18].A/O[19].2.2C/NC/N=4~78~124.4C/N8~12TP0.5mg/L[14]AC/N4~7TP2.47mg/LTP54.82%.C/N7654321015/dNH+4－N/mg·L-11665432107141312111098C/N=8~12C/N=4~716141210864215/dTN/mg·L-11665432107141312111098C/N=8~12C/N=4~72C/NTN3C/NNH+4－N2.52.01.51.00.50.015/dTP/mg·L-11665432107141312111098C/N=8~12C/N=4~7A4C/NTP300··20188[20][21]C/N10~20C/NMBR[22]C/NTP0.3mg/L.2.3C/NC/NCOD5.5C/N=8~12COD462.11mg/LCOD17.94mg/L96.12%[14]A86.67%30mg/LCODC/N=4~7COD260.30mg/LCOD20.64mg/L91.30%COD[14]A73.33%COD30mg/LC/N8~12.C/NCOD[23]COD350mg/LC/NCOD.31C/N4~12A/OMBRTN、NH+4－NCODGB18918—2002《》A.2GB3838—2002《》.3C/N8~124~7TPA.[1]KELLYMGWHITTONBA.Biologicalmonitoringofeutro-phicationinrivers[J].Hydrobiologia1998384155-67.[2].[J].2014101-3.[3].[J].2015201-7.[4]PENGYZHUG.Biologicalnitrogenremovalwithnitrificationanddenitrificationvianitritepathway[J].AppliedMicrobiologyandBiotechnology200673115-26.[5].[J].2009293449-473.[6]MABWANGSCAOSetal.Biologicalnitrogenremovalfromsewageviaanammoxrecentadvances[J].BioresourceTechnology2016200981-990.[7].[J].20092464-68.[8].A~2/O+MBR[D].201237-55.[9].A~2/O-MBR[J].201351828-1834.[10].A/O-MBR[J].20149137-140.[11].ABR-MBR[J].201493466-3472.[12]LARREALLARREAAAYESAEetal.Developmentandverificationofdesignandoperationcriteriaforthestepfeedprocesswithnitrogenremoval[J].WaterScience&Technology2001431261-268.[13]GESPENGYWANGSetal.Enhancednutrientremovalinamodifiedstepfeedprocesstreatingmunicipalwastewaterwithdifferentinflowdistributionratiosandnutrientratios[J].BioresourceTechnology2010101239012-9019.[14].GB18918—2002[S].20035.[15]MONTHEROML.A/O-MBR100806040200/mg·L-1/%20C/N=8~12C/N=4~71525303540455C/NCODA/OMBR301··244AsandantimonySbremovalbypotassiumferrate[J].ChemicalEngineeringJournal2016292389-397.[27].As3+[J].2006286495-499.[28].pHCu2+[J].201436378-81.[29]ZHANGXHLEIHYCHENKetal.EffectofpotassiumferrateK2FeO4onsludgedewaterabilityunderdifferentpHconditions[J].ChemicalEngineeringJournal2012210467-474.[30]ZHANGWJCAOBDWANGDSetal.Variationsindistributionandcompositionofextracellularpolymericsub-stancesEPSofbiologicalsludgeunderpotassiumferratecon-ditioningeffectsofpHandferratedosage[J].BiochemicalEngineeringJournal201610637-47.[31]WUCJINLYZHANGPYetal.Effectsofpotassiumferrateoxidationonsludgedisintegrationdewaterabilityandana-erobicbiodegradation[J].InternationalBiodeterioration&Biodegradation2015102137-142.[32].-[J].20143471776-1780.[33].[J].20161073787-3792.[34].[J].2013411106-109.[35]JIANGJQZHOUZWPAHLO.Preliminarystudyofcipro-floxacincipremovalbypotassiumferrateVI[J].SeparationandPurificationTechnology201288295-98.[36]WANGYLLIUHJLIUGGetal.OxidationofdiclofenacbypotassiumferrateVIreactionkineticsandtoxicityev-aluation[J].ScienceofTheTotalEnvironment2015506252-258.[37].[J].200824557-60.[38].[J].2014862451-2455.[39].-[J].2011311123-127.287297[J].201262061-2067.[16].A/O[J].2007611-14.[17].A/O[J].20032648-10.[18]SILVAAFANTUNESSSAUNDERSAeta