AOMBR工艺中生物群落结构变化的研究陈小刚

Vol.1,No.2Mar.,2011　　　　　　　JournalofEnvironmentalEngineeringTechnology1,220113　:2010-09-30　:(16254002)　:(1984—),,,、,[e-mail]＊:(1963—),,,,,[e-mail]:1674-991X(2011)02-0145-06AOMBR陈小刚1,2,张洪林1＊,于冰1,朱琼芳2,3,张娟2,4,赵晓峰21.,　1130012.,　1000123.,　5100064.,　230036　:-(AOMBR),24h,,,MBRCODCr,NH4+-NTP。:,———,,0,±,+++;、,。,、、CODCr。NH4+-N,TP。:-;;;:X172　　　:A　　　DOI:10.3969j.issn.1674-991X.2011.02.024ResearchonChangeofBioticCommunityStructureinAOMBRProcessCHENXiao-gang1,2,ZHANGHong-lin1,YUBing1,ZHUQiong-fang2,3,ZHANGJuan2,4,ZHAOXiao-feng21.SchoolofEnvironmentalandBiologicalEngineering,LiaoningUniversityofPetroleumChemicalTechnology,Fushun113001,China2.ChineseResearchAcademyofEnvironmentalSciences,Beijing100012,China3.CollegeofEnvironmentalScienceandEngineering,SouthChinaUniversityoftechnology,Guangzhou510006,China4.ResourceandEnvironmentCollege,AnhuiAgriculturalUniversity,Hefei230036,ChinaAbstract:Ananoxic-oxicmembranebioreactor(MBR)combinationtechnologywasusedfortreatingcampusdomesticsewage.Thesludgesampleswerecollectedevery24hourstoanalyzethestructureofbioticcommunityandspeciescompositionindifferentperiods.Meanwhile,theindicatorsofthesewageeffluentandsludgequalityweremonitoredandtherelationshipbetweenbioticcommunitystructureandtheremovalratesofCODCr,NH4+-NandTPwerestudied.Theresultsshowedthatduringtherunningtime,theflocculatestructureofactivatedsludgechangedamongclose-loose-tight-bulking,andthenumberoffilamentousbacteriagraduallyincreased,changingfrom0level,±level,+levelto++level.Thechangeofthefaunacommunity-Vorticellidae,Rotifera,Epistylisinsectswasfoundtohaverelationwithsludgestructure,andsothefaunacommunitycouldbeusedastheindicatorofsludgebulkingaswellasthetimepointofsludgedischarging.Thepopulationsizeofmicrofaunaanddominantfaunavariedwiththewaterquality,andthepopulationofSessileVorticellidae,CystandEpistyliscouldbeusedas1thebioindicatorofCODCrconcentrationoftheeffluent.ThedynamicrelationshipbetweentheremovalratesofNH4+-N,TPandmicrofaunacommunitystructurewasnotsignificant.Keywords:AO;MBR;bioticcommunitystructure;bioindicator1—;2—;3—;4—;5—;6—;7—;8—;9—;10—;11—;12—;13—;14—;15—;16—pH。1　AOMBRFig.1　DiagramoftheAOMBRsystem　　(MBR),,、、、[1-2]。[3-4],MBR。、,,MBR,,。10,MBR:MBR,MBR[5]。MBR,:MBR[6-9];MBR,[10-12]。-MBR(AOMBR),,MBR。AOMBR,,MBR、、。1　1.1　、、、、5,(PLC),、、、、(1)。PVDF,0.08μm,0.45m2。,,,,,。1。1.2　MBR,42Lh;(SRT),(HRT)17.14h,A5.24h,O11.9h;0.5m3h;。·146·2:AOMBR1　Table1　RawwaterqualitypHNTUCODCr(mgL)NH4+-N(mgL)TP(mgL)℃6.4～7.5146～199218～65334～774.59～7.1216～306.9173427565.824　　24h。,。。。,CODCr,NH4+-N,TP,pH,(MLSS),SVI。[13]。SPSS17.0。2　2.1　1,,[14]。,SVI2。35d,SVI60～80mLg,、,,、,,,;40d,,SVI80mLg130mLg,130mLg,,,、。,,——。2.2　2.2.1　1,,35d,,、,。35d,,,;56d,、。,2。,2　MLSSSVIFig.2　MLSSandSVIchangewithtime。。,,。:———。2　MBR1)Table2　ChangeofsludgefloccharacterandnumberoffilamentousbacteriaduringMBRrunningperiodd1±—70140、28±、35+42+49+56+63++　　1),5[15]:0,;±,;+,,;++,,;+++,,。·147·12.2.2　1,。3,,、,,。,、,。35d,,,,。45d,,。50d,,,,。,,、、、。55d,、、。3,,:———。3　Fig.3　Thenumberofmicrofaunachangewithtime3　3.1　,[16-18]。,(3)。3　CODCr1)Table3　ThecorrelationanalysisbetweenCODCrtreatmentrateandmicrofaunaCODCr-0.3810.076-0.5432)-0.5552)-0.124　　1)CODCr,%;,104mL。2),0.01,。　　3,CODCr,-0.543-0.555,CODCr,,,;CODCr,[9],3,MBR16℃,,,。4,56,35d,、,,CODCr,NH4+-NTP,96%,91.5%78%,MBRNH4+-N,TP。MBRNH4+-N,TP,[19-20]。4　CODCrFig.4　TherelationbetweenCODCrtreatmentrateandmicrofaunanumber3.2　,·148·2:AOMBR[21],4,。、,0.791,0.7890.422,、,,,,,。,、。MBR4,7。1,(7d),,。MBR。4　1)Table4　Thecorrelationanalysisbetweensludgeconcentrationandmicrofaunacommunity0.7912)0.7892)0.3600.4223)-0.290　　1),mgL;,104mL。2),0.01,。3),0.05,。7　Fig.7　Therelationbetweensludgeconcentrationandmicrofaunapopulation　　2,(7～30d),,,。,,,,MBR。。3,、(35d),,,。4,(60d),,,;,,,,。,,。3.3　,,Melanic,Wingender[21-22]·149·1,、,,,。Higgins[23],,,,,,,,。,,(MLVSSMLSS),,,,,,。,,,,、。4　(1),:———。———,,0,±,+++。,,、,。(2)35d,、,,CODCr,NH4+-N,TP96%,91.5%,78%;,,,。CODCr。(3),,,,,,,。。[1]　KRAUTHKH,STABKF.Pressurizedbioreactorwithmembranefiltrationforwastewatertreatment[J].WaterSciTechnol,1993,27(3):405-411.[2]　,,.MBR[J].,2003,29(18):103-104.[3]　,.[J].,2002,21(3):47-51.[4]　.[M].:,1988:230-247.[5]　WITZIGR,MANZW,ROSENBERGERS,etal.Microbiologicalaspectsofabioreactorwithsubmergedmembranesforaerobictreatmentofmunicipalwastewater[J].WaterRes,2002,36(2):394-402.[6]　,,.-[J].,2004,17(5):48-51.[7]　.[J].,2002,18(2):53-55.[8]　,.MBR[J].,2006,6(4):592-597.[9]　,.[M].:,1990.[10]　SALVADOH.Effectofmeancellularretentiontimeonciliatedprotozoanpopulationsinurbanwastewaterplantsbasedonapro-posedmodel[J].WaterRes,1994,28:1315-1321.[11]　,,,.[J].,1998,11(1):40-44.[12]　,,.[J].,1997,17(1):68-74.[13]　.[M].4.:,2002.[14]　,.[J].,2002,33(3):41-42.[15]　,.[J].,1999,20(2):53-56.[16]　.[M].:,1999:141-148.[17]　CYBISLFA,HORANNJ.Protozoanandmetazoanpopulationsinsequencingbatchreactorsoperatedfornitrificationandordeni-trification[J].WaterSciTechnol,1996,35(1):81-86.[18]　THONGCHAIP,ORATBOIC.WaterqualityandoccurrencesofprotozoaandmetazoaintwoconstructedwetlandstreatingdiferentwastewatersinThailand[J].WaterSciTechnol,1997,36(12):183-188.[19]　.[M].