BR反应器污泥减量化研究

36Vol.32No.102006SBR122(1,150090;2,100084)SBR,214,25kHz,1.6W/mL,15min,82.4mg/(Ld),58.8%,CODCr(GB189182002),314,25kHz,1W/mL,10min,SBRResearchonsludgereductioninSBRunitZhangGuang2ming1,YangJin2mei2,WangWei2(11SchoolofMunicipal&EnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China;21DepartmentofEnvironmentalScienceandEngineering,TsinghuaUniversity,Beijing100084,China)Abstract:UltrasonicwasappliedintheSBRunittoreducetheamountofexcesssludge.Whentherefluxratiowas2/14withultrasoundcondition25kHz,1.6W/mL,15min,thedailysludgegenerationdeclinedto82.4mg/(Ld),whichwasnearly58.8%decreasethanthatofuntreatedsludgeintheSBR.AndthereductionofsludgedidnptdeterioratethesettingcharacteristicofSBRsystem.TheeffuentCODCrhadmettheClassofDischargestandardofpollutantsformunicipalwastewatertreatmentplant.Theeffluentphosphorouswasalittlehighbecausetheultrasoundirradiationenhancedthephosphorousreleaseability.Whentherefluxratiowas3/14withultra2soundcondition25kHz,1W/mL,10min,therewasnearlynoexcesssludgedischarged.Keywords:SBR;Sludgereduction;Ultrasonic;Celllysis;Phosphorous0,,,25%65%[1],[2],[3],[4,5],,,SCOD[68](COD)SCOD810mg/L5170mg/L,40%,VSS1913%SBR11.1,12,©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(2min)(4h)(1h)(1min)(1h)1SBR1.3(1)A:,314,25kHz,10min,1W/mL,112W/mL,114W/mL;B:,214,25kHz,1.6W/mL,15min(2)4SS,SV30,VSS,2000mg/L;,;TNTPCODCr22.125kHz,1.6W/mL,15min,,,222,,,214,114mg/(Ld),;314,3mg/(Ld),;414,-87mg/(Ld),,56.5%34VSS/SSSVI,VSS/SS,VSS/SS,,30%,VSS/SS[9],,3VSS/SSSVI(),100SVI,4142NH4ClKH2PO4MgSO4CaCl2FeSO47H2ONaHCO3/mg/L40012015035105015100©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1,214,25kHz1.6W/mL15min;2,314,25kHz1W/mL10min;3,314,25kHz1.4W/mL10min;4,314,25kHz1.2W/mL10min;89)7VSS/SS,,,,1.2W/mLVSS/SS8SVI,,B(1),SVI(100),,,SVI,200,,,©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(GB189182002),CODCr86.5%1,CODCr,100mg/L,,CODCr97716%SBRCODCr©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:MLSS2000mg/L,97.6%,1186%9d,,,5NTU,,1,10NTU,,,,,,3,CODCr100mg/L,TP,4.7mg/L,TN,,,10NTU,18.3NTU2,TNTPCODCr,CODCr,60mg/L;,4125NTU;TP5mg/L;TN,14192312mg/L,117%3619%,2.3,56.9m,65.4m,,3(1)214,58.8%,SVI100,(2)CODCr(GB189182002),SBR(3),59.3%93.7%,(4)314,25kHz,1W/mL,10min,,(5),SBR214,25kHz,116W/mL,15min314,25kHz,1W/mL,10min1,..,2004,3(24):39422,..:,20003..:,20054,..,2003,19(2):133135©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.