SBR无厌氧段实现生物除磷

SBR,*,,,,,,,(,410082):SBR.,SBR,.4h,COD400mg#L-1,pH710?012,TP15~20mg#L-11mg#L-1,90%.B-(PHA)(PHA5mg#L-1),()4h(831034mg#g-1,1h791980mg#g-1,831086mg#g-1),015h315h.PHA,,,.:SBR;B;:X703.1:A:0250-3301(2008)07-1867-07:2007-07-12;:2007-08-30:(NCENT-0770);(50478054);(2004DFA06200);(K051132-72):(1981~),,,,E-mail:[e-mail]*,E-mail:[e-mail];[e-mail]emovalinSequencingBatchReactorWithoutAnaerobicPhaseWANGDong-bo,LIXiao-ming,YANGQi,ZHANGJie,LIUY-ilin,LIUXian,JIABin,ZENGGuang-ming,LIAODe-xiang(CollegeofEnvironmentalScienceandEngineering,HunanUniversity,Changsha410082,China)Abstract:Theperformanceofphosphorusremovalwithasequencingbatchreactorwasinvestigatedbysimulatedmunicipalwastewater.Theexperimentalresultsshowedthatphosphorusremovalcouldbeachievedinsequencingbatchreactorwithoutanaerobicphase,whichwasconventionallyconsideredasakeyphaseforphosphorusremoval.Phosphorusconcentrationintheeffluentwas110mg#L-1belowafter4haeration,duringwhichpHwas710?012.Whichindicatedtheremovalrateofphosphoruswasabove90%whentheCODandphosphorusconcentrationofinfluentwereabout400mg#L-1,15-20mg#L-1,respectively.Intracellularstorageofpoly-phosphate(poly-P)wasincreasingintheaerationafterdecreasinginfirsthouraeration(thecontentofpoly-Pwas831034mg#g-1atthebeginningofaerobicphase,791980mg#g-1infirstaerationand831086mg#g-1inend),buttheenergystoragepoly-B-hydroxyalkanoates(PHA)wasconstantnearlyandthecontentwasverylow(PHAconcentrationwasabout5mg#L-1).Theresearchesindicatedthatphosphatecouldbetransformedtopoly-Pbypoly-phosphate-accumulatingorganismswithoutanaerobiczoneandPHA,biologicalphosphorusremovalwasobtainedbyremovingsludgewithrichphosphorus,andthisphenomenoncouldnotbeexplainedbyconventionaltheory.Keywords:SBR;poly-B-hydroxyalkanoates(PHA);poly-phosphate[1],(poly-P),,.,DONO-3,,,(VFAs),PHA;,,PHA,,,ATP,,.,..Pastoreli[2]SBR(MBSBBR),,COD;Cassidya[3]SBR;Obaja[4]SBRAOA.,,(denitrifyingphosphate-accumulating29720087ENVIRONMENTALSCIENCEVol.29,No.7Jul.,2008organisms,DNPAOs),,,N2,DEPHANOX[5]BCFS[6],[7,8],,,;PHA,PHA.,,,,PHA.[9],,PHA,;,PHA,.,[10~13],20%~30%[14,15],,.200510SBR,SBR,,[16],20065SBR,SBR,.11.1SBR,,12cm,100cm,12L(1).:y(4h)y(015h)y(315h),,,DO6mg#L-1.,3000mg#L-1,,7d,,15d.1SBRFig.1Sequencingbatchreactor1.2,,,NaHCO3015molPLHClpH,pH710?012,1.1.3COD:[17];TP:[17];MLSS:[18].1Pmg#L-1Table1SyntheticwastewaterPmg#L-1350~40020~2515~20522PHA:[19,20].50mL,-54e011mbar20h,20mg1,2-2mL2mL(1B4),100e4h,2mL,20~30s,,PHA,,;PHA11LLPHADB-5(30mLength@012mmID@0125Lmfilm)186829,,115mLPmin;1B15;FID;80e,1min,45ePmin270e,3min;250e,180e.22.1TP14d,,SBRTP2.2,TP.TP(15~20mg#L-1),0~115mg#L-1,90%.SBR,SBR,,,.2.2TPPHA2SBRTPFig.2VarietyofconcentrationandtheefficiencyofremovalofTPinsequencingbatchreactor90d,SBR1TPPHA(3).3TPPHAFig.3VarietyofTPandPHAintherepresentativecycle,,PHA,18697:SBR,PHA,.30min,240min,,,TP18186mg#L-1,,TP,TP0128mg#L-1,TP98152%;PHA(PHA5~6mg#L-1),PHA,.3240~480min2,,,PHA.2.3,,,.,,,.,.3:[21].;,;.,,.,,1%~2%..,COD,COD200B1,CODTP20B1,CODPTP,,,.(MgHPO4MgNH4PO4)[Ca5(PO4)3OH](FePO4),(1),,pH715[21],pH710,,.,TPCODMLSS,4.4,30min,COD(COD396mg#L-196mg#L-1),MLSS(MLSS4156mg#L-14310mg#L-1),/0,,.30~60minCODMLSS(60minCOD52mg#L-1MLSS4340mg#L-1),30min,.TP60min(TP18186mg#L-1,60minTP14191mg#L-1),(831034mg#g-179198mg#g-1),60min,[22,23],()(),,PP,,60min.60min,CODMLSS,MLSS120min(4356mg#L-1),(4350mg#L-1),.TP60~120min(60minTP14191mg#L-1;90minTP8183mg#L-1;120minTP1192mg#L-1),(60min79198mg#g-1;90min811175mg#g-1;120min82165mg#g-1).120minTP,,TP0128mg#L-1,831086mg#g-1.200mg#L-1,214g,7d,831086mg#g-1,1%,200mg.4240~480min21870294TPpoly-PCODMLSSFig.4VarietyofTP,poly-P,CODandMLSSintherepresentativecycle,,MLSS(MLSS4150mg#L-14124mg#L-1),COD(COD26mg#L-156mg#L-1).,,TP(480min831057mg#g-1,TP0146mg#L-1),.3,PHA,,P,,,,,,[21],.,,,,.,3,(poly-P)(Glycogen)B-(PHA).,(VFAs),,,,;H+e-,-B-(poly-B-hydroxybutyrate,PHB),(PHBPHA),.,.5[24].,PHB.PHB,NADH2.NADH2PHB,(ATP,).18717:SBRAcCoAA;H+;SbsCOD;SA;SB;M+;NADHÑ;PHB-B-;EMP;pmf,5Fig.5PreleasepatternintheanaerobicconditionbyPAO,(NO-x),PHB,,,(),6()[24],PHBCO2,NADH2ATP.ATP..PHB.6Fig.6PuptakepatternintheaerobicconditionbyPAOPPHA,,.[25],,pH(615~710),pH710,;[26],,PHA,.,:60min,,,,,,.115mg#L-1,,,10mgPL5~715mgPL[21],,.,.4(1)SBR,.4h,pH710,TP15~20mg#L-11mg#L-1,90%.(2)B-(PHA)(PHA5mg#L-1).(3)()4h(831034mg#g-1,1h791980mg#g-1,831086mg#g-1),015h315h.(4)PHB,,,.:[1]PijuanM,GuisasolaA,BaezaJA,etal.Aerobicphosphorusreleaselinkedtoacetateuptake:InfluenceofPAOintracellular187229storagecompounds[J].BiochemicalEngineeringJournal,2005,26:184-190.[2]PastoreliG,CanzianiR,PedrazziL,etal.Phosphorusandnitrogenremovalinmoving-bedsequencingbatchbiofilmreactors[J].WatSciTech,1999,40(4):169-176.[3]CassidyaDP,BeliabE.NitrogenandphosphorusremovalfromanabattoirwastewaterinaSBRwithaerobicgranularsludge[J].WaterRes,2005,39:4817-4823.[4]ObajaD,MaceS,CostaJ,etal.Nitrification,denitrificationandbiologicalphosphorusremovalinpiggerywastewaterusingasequencingbatchreactor[J].BioresourceTechnol,2003,87:103-111.[5]EkamaGA,WentzelMC.Difficultiesanddevelopmentinbiologicalnutrientremovaltechno