搜索
33420124ENVIRONMENTALSCIENCEVol．33No．4Apr．2012112*13111．1500902．2000923．210098CODN、P．．、、1.7mmSVI38.43mL·g－1TP90.9%1.3mg·L－1COD0.5715.73mg·g·h－1．、NO－3-NNO－3-N．PMg、Ca、FeP．61.9%mP/mNO－3-N1.14．X703.1A0250-3301201204-1293-062011-06-302011-09-20509780682010DFA924602009ZX07424-0051984～、、E-maildreamy2064@hotmail．com*E-mailysl@tongji．edu．cnPhosphorusRemovalCharacteristicsbyAerobicGranulesinNormalMolassesWastewaterAfterAnaerobicTreatmentWANGShuo1YUShui-li12SHIWen-xin1BAORui-ling3YIXue-song1LIJian-zheng11．StateKeyLaboratoryofUrbanWaterResourceandEnvironmentHarbinInstituteofTechnologyHarbin150090China2．StateKeyLaboratoryofPollutionControlandResourceReuseTongjiUniversityShanghai200092China3．StateKeyLaboratoryofHydrology-WaterResourcesandHydraulicEngineeringHohaiUniversityNanjing210098ChinaAbstractCODdecreasedobviouslyinnormalmolasseswastewaterafteranaerobictreatmenthoweverconcentrationsofnitrogenandphosphoruswerestillhigherintheeffluentwhichseriouslydamagedtheecologicalbalance．InthisstudyaerobicgranulescultivatedinsequencingbatchairliftreactorSBARwerecarriedoutfortreatingtheeffluentphosphorusremovalprocessesandcharacteristicswerediscussedaswell．Themeandiameterofaerobicgranulescultivatedbymultiplecarbonsourcesacetatepropionateandbutyratewas1.7mm．Theaveragephosphorusremovalefficiencywas90.9%andthelevelofphosphorusineffluentwasonly1.3mg·L－1TPreleasedperCODconsumedwas0.571andthespecificrateofTPreleasedwas5.73mg·g·h－1．NO－3-NusageofphosphorusaccumulatingorganismsPAOsimprovedduringdenitrifyingprocessbecausetheconcentrationofpropionateandbutyrateincreasedinmultiplecarbonsourceswhichmeansthephosphorusuptakeefficiencyincreasedwhenperNO－3-Nconsumed．PhosphoruscontentrepresentedastrongercorrelationwithmagnesiumcalciumandferrumcontentsinaerobicgranulesandtheirextracellularpolymericsubstancesEPSthephosphorusadsorptionbyEPScouldenhancephosphorusremoval．61.9%ofphosphorusaccumulatingorganismsweredenitrifyingphosphorusaccumulatingorganismsinaerobicgranulesandTPuptakeperNO－3-Nconsumedwas1.14whichwashigherthanthatofaerobicgranulesonlycultivatedbyacetate．KeywordsaerobicgranulesAGSextracellularpolymericsubstancesEPSphosphorusremovalcharacteristicsdenitrifyingphosphorusaccumulatingorganismsnormalmolasseswastewaterCOD．．12COD0.30mmol·g－1．3COD．DOI:10.13227/j.hjkx.2012.04.02133．．4～7．DeKreuk8．、、9．、、10、、．Liu11EPSEPS．12．、O21350%．14EPSEPS．、、．EPS．11.1sequencingbatchairliftreactorSBAR8.0L0.20±0.01m3·h－150%．6h30min30min5min5min．1.22.0g·L－1．4.0Lmg·L－1600200300NH4Cl400KH2PO430K2HPO460MgSO440CaCl280EDTA40NaHCO3100COD、TN、TP1200、65、15mg·L－1．1mL·L－115g·L－1FeCl3·6H2O1.5H3BO30.15CuSO4·5H2O0.03KI0.03MnCl2·4H2O0.12Na2MoO4·2H2O0.06ZnSO4·7H2O0.12CoCl2·6H2O0.15．1.3COD、TN、NO－2-N、NO－3-N、NH+4-N、TP、MLSSsludgevolumeindexSVI16．SEMS-4300NJapan．、、Model-11217．Bao9．EPSAdav181920．EPSICPPerkin-ElmerOptimas5300．EPSPExcelCorrel．1.4350mg·L－1NO－2-N、50mg·L－1NO－3-N0.05m3·h－1．22.1SBAR9d30d1．0.5～2.5mm76.4%1.7mmSVI38.43mL·g－13.7g·L－1．492141Fig．1Morphologyofaerobicgranules2.2SBAR4℃SBARCOD、TN、TP．14dCOD、TN、TP．COD、TN、TP88.5%、79.4%、90.9%23C、N、PP1.3mg·L－183.4%2CODFig．2VariationsofCODintheformationprocessofaerobicgranules3COD、TN、TPFig．3VariationsofCODTNandTPinthewholecycle0.49mmol·L·h－1．COD0.5715.73mg·g·h－1．33.1．．41．4Fig．4TPremovalofaerobicgranulesbymutiplecarbonsources1Table1TPremovalcharacteristicsofaerobicgranulesbydifferentcarbonsources、、/mg·L－131.236.8/mg·L－123.734.3NO－3-N/mg·L－126.930.0/NO－3-N0.881.14TP/%85.990.9SBAR5921333.7g·L－1COD．36.8mg·L－19.95mg·g·h－1Wang21A2NHu22SBR．NO－3-N8.58mg·mg·h－1A2N18.99～23.36mg·g·h－123．AO3.0mg·g·h－124．534.3mg·L－130.0mg·L－1mP/mNO－3-N1.142.102134.3mg·L－116.3mg·L－1NO－3-N13.7mg·L－1NO－3-N．5Fig．5Denitrifyingphosphorusremovalprocessofaerobicgranules、25NO－3-NNO－3-N．NO－2-NNO－2-N4.4mg·L－19NO－2-N．NO－2-N．、、TP90.9%Wang21Chen25Bao79DeKreuk8．6PHAsPHAPHBPHAPHAPHBPHAPHB．PHVPH2MVPHB．6PHAsFig．6VariationofPHAsinphosphorusremoval3.2EPSEPS26．1.5%～2.0%Cloete14EPS5%～7%27．SBAREPS214293mg·kg－118.81mg·L－1．2PMg、Ca、Fe0.9999、0.9212、0.97490.9768、0.9971、0.9963．EPSMLSS10.05mg·g－13.97mg·g－1mPN/mPS=0.40．SBARpH8.0～8.2pH7.8～7.9EPS．．692142EPSTable2ElementsanalysisinaerobicgranulesandtheirEPSMg/mg·kg－1Ca/mg·kg－1Fe/mg·kg－1P/mg·kg－140d208388721401883950d23811026114751205160d2584147931589142930.99990.92120.9749Mg/mg·L－1Ca/mg·L－1Fe/mg·L－1P/mg·L－1EPS40d1.10510.312.55210.06EPS50d1.31711.603.26015.17EPS60d1.64012.293.62418.810.97680.99710.99633.3NO－2-N、NO－3-NO270.91、1.221.55mg·g·h－1Hu2261.9%．Lee24/11%AO2SBR64%．/SBAR13．24/．7Fig．7Effectsofdifferentelectronacceptorsondenitrifyingphosphorusremoval41、、1.7mmSVI38.43mL·g－1TP90.9%1.3mg·L－1COD0.5715.73mg·g·h－1．2、NO－3-NNO－3-N．3EPSP14293mg·kg－118.81mg·L－1Mg、Ca、FeEPS．461.9%NO－3-NmP/mNO－3-N1.14．/．1RenNQLiJZLiBKetal．Biohydrogenproductionfrommolassesbyanaerobicfermentationwithapilot-scalebioreactorsystemJ．InternationalJournalofHydrogenEnergy200631152147-2157．2LiJZLiBKZhuGFetal．HydrogenproductionfromdilutedmolassesbyanaerobichydrogenproducingbacteriainananaerobicbaffledreactorABRJ．InternationalJournalofHydrogenEnergy200732153274-3283．3XingDFRenNQWangAJetal．Continuoushyd