不同颗粒龄的好氧颗粒污泥性能的研究周曼

33320123ENVIRONMENTALSCIENCEVol．33No．3Mar．2012*430074SBR1a2、、．、IC1.066g·cm－3、1.013g·cm－398.7%1.026g·cm－3、1.010g·cm－398.4%1.9mm2.2mm．0.005～0.032m·s－10.003～0.028m·s－1SVI．COD、NH+4-N90%85%COD、NH+4-NCOD、NH+4-NTP40%～90%32%～85%TN80%．SOURH、SOURNH4、SOURNO226.4、14.811.2mg·h·g－125.2、14.48.4mg·h·g－1．、．X703.1A0250-3301201203-0896-072011-04-282011-07-301985～[e-mail]*[e-mail]uleCharacteristicswithDifferentGranuleAgeZHOUManYANGChang-zhuPUWen-hongLUOYing-dongGONGJian-yuCollegeofEnvironmentalScienceandEngineeringHuazhongUniversityofScienceandTechnologyWuhan430074ChinaAbstractIntheSBRreactorwestudiedthedifferentstylephysicochemicalcharacteristicpollutantsremovalandmicrobialactivitybetweentheshortageandlongageaerobicgranulerespectively．Theshortageaerobicgranulewascultivatedfromactivatedflocculessludgeandtheotherwasgottenfromaerobicgranularsludgewhichwasoperatedstablymorethanoneyear．TheresultsindicatedthatthewetdensitythespecificgravityandintegratedcoefficientICoftheshortageaerobicgranulewere1.066g·cm－31.013g·cm－3and98.7%respectively．Andthatoflongagewere1.026g·cm－31.010g·cm－3and98.4%respectively．Allofthemwerehigherthanthelongageaerobicgranule．Themeandiametersofthemwere1.9mmand2.2mmrespectively．Thesettlingvelocityofshortageandlongageaerobicgranulewere0.005-0.032m·s－1and0.003-0.028m·s－1respectivelyandtwokindsofaerobicgranulesettlingvelocityincreasedwiththediameterincreased．SVIoftheformerwaslower．TheCODremovalratesoftwoaerobicgranuleswereabove90%andtheNH+4-Nremovalratesofthemwereabout85%．TheresultsoftheCODeffluentconcentrationNH+4-Neffluentconcentrationandthepollutantsconcentrationinatypicalcycleindicatedthattheshortageaerobicgranulehadbetterpollutantsremovalefficiency．TheTPremovalratesofthemwerebetween40%-90%and32%-85%respectively．TheTNremovalratesofthemwereabout80%．TheSOURHSOURNH4andSOURNO2oftheshortageaerobicgranulewere26.414.8and11.2mg·h·g－1respectively．Andthatoflongagewere25.214.4and8.4mg·h·g－1respectively．Insummarytheaerobicgranulehadsignificantlydifferentphysicalandchemicalcharacteristicsbecauseofdifferentgranuleageandtheshortageaerobicgranuleexhibitedbetterpollutantsremovalabilityhighermicrobialactivityandmorestabilitythanthelongageaerobicgranule．Keywordsaerobicgranulegranuleagediameterphysicochemicalcharacteristicstability、、、、1～5．6～9．．．、10～14．DOI:10.13227/j.hjkx.2012.03.0443．．、、2、．11.12SBRR1、R2．8cm160cm8L50%．5～10℃pH7.0～8.0．1．R165dR21a5000mg·L－1．R1R2SBR46h2min、354min、3min1min．1SBRFig．1SchematicdiagramofSBRsystem1.2R1R2R1NaAc·3H2O1395mg·L－1COD600mg·L－1、NH4Cl191mg·L－1、KH2PO426mg·L－1、MgSO450mg·L－1、Fe2SO4329mg·L－1、CaCl255mg·L－1．1.3COD、NH+4-N、TN、TP、MLSSSVI15JPB-607pHpHS-3BpH．SOURH、SOURNH4SOURNO216．17100mL500r·min－110min．50～1001L．1810mL30minm1500r·min－110minm24℃m4．4℃m3．=m2－m1/m3－m1－m4－m2×FF．2R1R2Fig．2Photographsoftheaerobicgranularsludgeintworeactors22.1R1．R21aR12．798332.2、、R11.066g·cm－3R21.026g·cm－3Etterer19R2R120R1R293.3%93.9%．．1.002～1.006g·cm－321．R1R21.013g·cm－31.010g·cm－3R1R1R2．IC200r·min－15min22．R1IC98.7%R2IC98.4%R1R2．1．．R1R2SS．R2．2.3、．3．0.6～4.0mm1.9mm．1.4～4.0mm2.2mm．3R11.4～2.0mmR164.2%．R22.0～4.0mmR268.5%．R23R1R2Fig．3SizedistributionofaerobicgranularsludgeintworeactorsR1．-．．N2N223．2.44SVI．SVI24．5R1R2R10.005～0.032m·s－1R20.003～0.028m·s－1．25．R1、、、、R2．89834SVIFig．4VariationofSVIduringstableoperationperiodintworeactors、、、．5R1R2Fig．5Settlingvelocityofaerobicgranularsludgewithdifferentsizeintworeactors2.52.5.1COD、NH+4-NTP600、506mg·L－1．COD、NH+4-N、TN、TP6．6a2COD90%COD38mg·L－1COD50mg·L－1COD．6b2NH+4-N85%R1NH+4-N2～10mg·L－1R26R1R2Fig．6PerformanceoftworeactorsoperationforthepollutantsremovalNH+4-N3～15mg·L－1．2627．99833．6c2TNR1TNR2TNR1、N2TNNH+4-NNOx-NNH+4-NNOx-NTNR1TN．6dTP40%～90%TP32%～85%．28．R1TPR2．2.5.27aR1R2COD．30minR1CODR2COD72%69%．60minCOD．COD．COD．7b．30minDOR1DOR2．CODR1COD．CODDO．．7cNH+4-NTN．7R1R2Fig．7TimeprofileofthepollutantsconcentrationinatypicalcycleofthetworeactorsNH+4-N．1hNH+4-NCODCODNH+4-N．2930．NH+4-NTN．2.6SOUR．1R1R22SOUR．SOURHSOURNH40093SOURNO2．1R1SOURR2．1R1R2SOUR/mg·h·g－1Table1SOURintworeactors/mg·h·g－1SOURHSOURNH4SOURNO2R126.414.811.2R225.214.48.43．．．“”．．411.066g·cm－31.013g·cm－398.7%1.9mm0.005～0.032m·s－1SOURH、SOURNH4、SOURNO226.4、14.811.2mg·h·g－11.026g·cm－31.010g·cm－398.4%2.2mm0.003～0.028m·s－1SOURH、SOURNH4、SOURNO225.2、14.48.4mg·h·g－1．、、、．2COD、NH+4-NTP90%、85%40%～90%．TN80%．．3．1ChenYJiangWJLiangDTetal．AerobicgranulationunderthecombinedhydraulicandloadingselectionpressuresJ．BioresourceTechnology200899167444-7449．2WangJFWangXZhaoZGetal．OrganicsandnitrogenremovalandsludgestabilityinaerobicgranularsludgemembranebioreactorJ．AppliedMicrobiologyandBiotechnology2008794679-685．3YouYPengYYuanZGetal．CultivationandcharacteristicofaerobicgranularsludgeenrichedbyphosphorusaccumulatingorganismsJ．ChineseJournalofEnvironmentalScience20082982242-2248．4ShiXYYuHQSunYJetal．Characteristicsofaerobicgranulesrichinautotrophicammonium-oxidizingbacteriainasequencingbatchreactorJ．ChemicalEngineeringJournal20091472-3102-109．5NiBJXieWMLiuSGetal．Granulationofactivatedsludgeinapilot-scalesequencingbatchreactorfor