城市生活污水短程硝化系统的恢复与启动蒋杭城

119Vol．11No．920179ChineseJournalofEnvironmentalEngineeringSep．20172013ZX07314-012016－12－292017－03－031994—。[e-mail]*[e-mail]*100872pH-DOON-OFFSBＲDO。、NO－2-N。SBＲsequencingbatchreactorDO=2～2.5mg·L－1、HＲT=8～10h、SＲT=4～5d、T=25℃390%NO－2-N、NO－2-N/NH+4-N=0.96±0.1850%NH+4-N60%TIN90%NH+4-NTINA。DOpH-DOON-OFF。pHDOX703.1A1673-9108201709-4952-06DOI10.12030/j．cjee．201612224Biologicalactivityrecoveryandstart-upofmainstreamshortcutnitraficationsystemJIANGHangchengMAYimingZHANGYuankaiSONGXinxinWANGHongchen*CollegeofEnvironmentandNaturalＲesourcesＲenminUniversityofChinaBeijing100872ChinaAbstractInordertoachievethemainstreamshortcutnitrification-denitrificationandnitritation-ANAMMOXanonlinepH-DOcontrolmainstreamnitritationsystemwasbuiltwhichinapilotSBＲ．Afterrecoveringtheac-tivityofseedsludgeunderhighDOandmunicipalwastewaterdenitrificationwasaddedtostabilizeshortcutni-trification．AtlastANAMMOXwasconnectedwithSBＲtorealizeautotrophicnitrogenremoval．Thenitrogenre-movalratenitriteaccumulationrateduringstart-upprocesswasinvestigatedtocharacterizethestabilizationofsystem．TheresultsshowedthatwhencontroltheDOofSBＲreactorat2to2．5mg·L－1HＲTfrom8to10hSＲTfrom4to5dandT=25℃thenitriteaccumulationratecankeep90%andNO－2-N/NH+4-N=0．96±0.18．Thenitrogenremovalrateofshortcutnitrification-denitrificationcanreach50%andTINremovalratecanreach60%after3months．ThenitrogenremovalrateandTINremovalrateofnitritation-ANAMMOXcanachieve90%andtheeffluentcanreachprimarydischargingstandardA．Ourstudyshowsthatshortcutnitrificationsys-temcanbestart-upunderhighDOsuccessfullyandtheonlinepH-DOcontrolsystemplayanimportantroleinthestabilityofnitritation．Nitritation-ANAMMOXcanrealizeautotrophicnitrogenremoval．KeywordsonlinecontrolpHDOshortcutnitrificationANAMMOXautotrophicnitrogenremoval2———ammoniaoxidizing/oxi-dationbacteriaAOBnitrite-oxidizingbacteriaNOB2。AOBNH+4-NNO－2-NNOBNO－2-NNO－3-N1-2。NO－2-NNH+4-N40%960%23-5。nitri-tation-ANAMMOX。90%CO26-7。NO－2-NNOBNO－3-NNOB8。NO－2-N。、、DO、pH、。DODO0.5～4mg·L－19-10。11-12。pH-DOON-OFFSBＲDO2～2.5mg·L－1。DO。11.1SBＲ。20L3。MLSS9250mg·L－1VSS6650mg·L－1。NH+4-N、NO－2-N、NO－3-NCOD《》13。pHDOHACHpH、LDO-Ⅱ。1.2SBＲ1a。1.5m30cm×30cm135L90～110L5。BT300-2J1L·min－1IKA-ＲW20150r·min－1。pH、DOHACHPLCpH1b。ON-OFF3210L·min－16L·min－1。20LSBＲON-OFFDO2.5±0.2mg·L－1SBＲHＲT=8～10h、SＲT=4～5d、T=25℃3000mg·L－11∶190～100L2pH-DO。AOBpHNOBpHpH14。pHpH'=pH。pH'abca0.1b5minc4h。。22.1DO2.5±0.5mg·L－1DO、pH2。DO2.5±1.5mg·L－1DO。pHpHpHAOB。N3594111Fig．1Schematicdrawingandcontrollogicofreactor2DO、pHFig．2pH-DOandwaterqualityinamanualcontrolcycleNH+4-NNO－2-NNO－3-N。DODO0.6mg·L－1DO0.5～1.0mg·L－1pH7.2～8.025～30℃154hN20%。NO－2-NNO－3-NNO－2-N75%。DODO4mg·L－1NO－2-NNOBNO－3-N。DO。DO、pH3。ON-OFF30minDO2.5±0.2mg·L－1459493DO、pHFig．3pH-DOandwaterqualityinonlinecontrolcycle。pHpH'bpH。3pHpHCODNH+4-N。pHCOD50mg·L－1。pHNH+4-NNO－2-N3hNO－3-N。4h1～2mg·L－1NO－3-NNNO－3-N。DONO－2-N。2.24Fig．4Waterqualitychangeofinfluentandeffluent34。1NH+4-N40±10mg·L－1NH+4-N10mg·L－130%NH+4-NNO－2-NNO－2-N90%NO－3-N2mg·L－1COD60mg·L－1。NO－2-N。34hNO－3-NNOBNO－2-NNO－3-NNO－2-N。1。DO、pH5。pH7.2～7.6pH7.6pH。pH-DO。4hpH5～10min15～20mg·L－1NO－2-NpH。NH+4-N10mg·L－115mg·L－1NH+4-N30%50%TIN30%60%NO－2-N90%。COD50mg·L－1NO－2-NNO－3-N1mg·L－1。NOBNO－2-NNO－3-N。2.3-。5594115DO、pHFig．5pH-DOandwaterqualityinashortcutnitrification-denitrificationcycle6。6Fig．6Waterqualitychangeattheendofaeration6NO－2-N85%90%。NO－2-NNOB。NO－3-N2mg·L－1NH+4-N30～50mg·L－1。50dNO－2-N/NH+4-N0.96±0.1860d。4NH+4-NTIN90%COD40～50mg·L－1NH+4-NNO－3-N6mg·L－1NO－3-NNO－3-N。A。2.4。。-。。3DO2～2.5mg·L－1、3。NO－2-N90%A。2～2.5mg·L－1DO、AOBNOBNOBＲEGMI16。2～2.5mg·L－1DO30～40mg·L－1HＲT=8～10h、SＲT=4～5d、T=25℃3000mg·L－1。pH-DO、ON-OFF。DODO2.5±0.2mg·L－1DONOBpHNOBNO－2-NNO－3-N17。65949、、、18。31DON。pHpH。NO－2-NNO－3-N。2pHON-OFFDO2～2.5mg·L－1AOBDONOB。3DO=2～2.5mg·L－1、HＲT=8～10h、SＲT=4～5d390%NO－2-N、NO－2-N/NH+4-N=0.96±0.1850%NH+4-N60%TIN-90%NH+4-NTINA。1TUＲKOMAVINICDS．Maintainingnitritebuild-upinasystemacclimatedtofreeammoniaJ．WaterＲesearch198923111383-13882FDZF．NitriteaccumulationinsubmergedbiofiltersCombinedeffectsJ．WaterScience＆Technology1996343/4371-3783HELLINGACSCHELLENAAJCMULDEＲJWetal．TheSHAＲONprocessAninnovativemethodfornitrogenremovalfromammonium-richwastewaterJ．WaterScience＆Technology1998379135-1424YOOHAHNKHLEEHJetal．Nitrogenremovalfromsyntheticwastewaterbysimultaneousnitrificationanddenitrifica-tionSNDvianitriteinanintermittently-aeratedreactorJ．WaterＲesearch1999331145-1545ＲUIZGJEISONDCHAMYＲ．NitrificationwithhighnitriteaccumulationforthetreatmentofwastewaterwithhighammoniaconcentrationJ．WaterＲesearch20033761371-13776THAMDＲUPBDALSGAAＲDT．ProductionofN2throughanaerobicammoniumoxidationcoupledtonitratereductioninma-rinesedimentsJ．Applied＆EnvironmentalMicrobiology20026831312-13187PICIOＲEANUCLOOSDＲECHTCMVMHEIJNENJJ．Modellingtheeffectofoxygenconcentrationonnitriteaccumula-tioninabiofilmairliftsuspensionreactorJ．WaterScience＆Technology1997361147-1568ＲATHNAYAKEＲMLDOSHIKIMISHIISetal．EffectsofdissolvedoxygenandpHonnitrousoxideproductionratesinautotrophicpartialnitrificationgranulesJ．BioresourceTechnology201519715-229LAWYLANTPYUANZ．Theconfoundingeffectofnitriteo