反硝化除磷理论工艺及影响因素王亚宜

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反硝化除磷理论、工艺及影响因素王亚宜, 彭永臻, 王淑莹, 李勇智, 潘绵立(哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090)   : 探讨了反硝化除磷的基本理论及其运行过程中的影响因素,并介绍了单、双污泥反硝化除磷系统和生物膜反硝化除磷工艺。  : 反硝化除磷; 反硝化聚磷菌(DPB); 控制要点:X703.1  :B  :1000-4602(2003)01-0033-04  :(50138010); (8002005)  //,(denitrifyingphos-phorusremovingbacteria,DPB),。,,。1 反硝化除磷理论,。1993DelftKuba[1]:/,,O2NO-3,PHBA/O(PAO)。:①[2],PAO,PAO,,;②[3],PAO,,/。PAO,PAO,PAO。,PAO/,。,。NO-3,Vlekke(1987)Takahiro(1992)—SBR(anaerobic/anoxicSBR,A2SBR)。,NO-3,、NO-3DPB。,、,50%NO-3,DPB50%[4]。PHB,DPB,DPB。2 反硝化除磷工艺2.1 、·33·   2003Vol.19          CHINAWATER&WASTEWATER          No.1。,DPB、,、;,DPBSBR。、DPB,、,,SRT(SRT,PHB,[5])。,NO-3,,,,;[5]。,DephanoxA2NSBR,UCT。2.2 。1994,Kerrn-Jespersen,(2h)/(4h)DPB,0.52mgPO3-4-P/mgHAc,2.0mgPO3-4-P/mgNO-3-N,8%~10%[6],。,Falkentoft(2000,2001)[7],DPB,。,(,)。,AQUASIM。,、,。3 影响因素及其控制要点3.1 。(0.2mg/L)(ORP)。,ORP,PO34-P,,。ORP,ORP,ORP-200~-300mV。,,。3.2 NO-3NO-2,NO-3PHB[8]。,[9]。MerzoukiA2NSBR:SRT。SRT15d,100mg/L120mg/L,63%93%;140mg/L100%,。,NO-2。Keren-Jespersen/、:,,,,。,。,,:[1],·34·2003Vol.19                              No.1。,、、,,。Meinhold(1999),(≤4~5mgNO2-N/L);(≥8mgNO2-N/L)。3.3 ,。Evans(1983),、、,。,,,。,,[3]。3.4 C/NC/PCOD,(HAc)PHB。Kerrn-Jespersen(1994),、PHB;HAc(PHB);PHB。,COD(HAc)。,()(),[8]。,,C、NP。C/N,NO-3;HAcDPBPHB,。C/NNO-3。Kuba(1996)A2NSBRC/N3.4,100%。C/N()(O2);C/N。1999,G.BortoneDe-phanoxJHBC/N,Mat/Lab-SimulinkCOD/TKNTKN/PO3-4-P,COD/TKN、TKN/PO3-4-P(),Dephanox90%。3.5 (SRT)、,SRT。UCTDPB:UCTPAOS/DPBSRTSRT,DPB;(),PAOS/DPB,。A2NSRT,DPBSRT。HAO(2001)UCTA2N:TN=68mg/L、P=9mg/L,TN≤10mg/L、P1mg/L,UCTT=10℃SRT=15d、T=20℃SRT10d;A2N(SRT30d,DPBSRT),DPB,,TN10mg/L,,T=5℃DPBSRT32d(UCTSRT=25d)。,(T=5℃)PAOS/DPBSRT,A2N,DPB;SRT≥15d、T≥10℃,UCT。Merzouki(2001):SBRSRT15d(SRT=7.5d1.8),SRT[9]。,SRT“·35·2003Vol.19                              No.1”。,SRT、,。3.6 pHpHDPB,pHP/C(),pHP/C,。KubapHA2SBR,,pHDPB,pH=8,P/C20%,SmolderspHA/OSBR[10]。3.7 ①MLSS。MLSS(DPB),DPB[11]。MLSS,,。②。,()。③。A2NSBR,A2SBRNSBR,SBBR(SequencingBatchBiofilmReactor)。④。、。,、,[11]。4 结语,,,16srRNA(FluorescentinsituHybridization,FISH)、、PCR(),。,、。:[1] JensPeter,Keren-Jespersen,MogensHenze,etal.Biologicalphosphorusreleaseanduptakeunderalternationanaerobicandanoxicconditionsinafixed-filmreactor[J].WatRes,1993,27(4):617-624.[2]KubaT,VanLoosdrechtMCM.Phosphorusremovalfromwastewaterbyanaerobic-anoxicsequencingbatchreactor[J].WatSciTech,1993,27(5-6):241-252.[3] WachtmeisterA,KubaT.Asludgecharacterizationassayforaerobicanddenitrifyingphosphorusremovingsludge[J].WatRes,1997,31(3):471-478.[4] KubaT,VanLoosdrechtMCM.Occurrenceofdenitrify-ingphosphorusremovalbacteriainmodifiedUCT-typewastewatertreatmentplants[J].WatRes,1997,31(4):777-786.[5] SormR,BortoneG.Phosphateuptakeunderanoxiccon-ditionsandfixed-filmnitrificationinnutrientremovalactivatedsludgesystem[J].WatRes,1996,3(7):1573-1584.[6]JensPeter,KerenJespersen,MogensHenze.Biologicalphosphorusuptakeunderanoxicandaerobicconditions[J].WatRes,1994,28(5):1253-1255.[7] FalkentoftCM,HarremoesP.Combineddenitrificationandphosphorusremovalinabiofilter[J].WatSciTech,2000,41(4-5):493-501.[8] KubaT,WachameisterA,VanLoosdrechtMCM.Effectofnitrateonphosphorusreleaseinbiologicalphosphorusremovalsystem[J].WatSciTech,1994,30(6):263-269.[9] MerzoukiM,BernetN.BiologicaldenitrifyingphosphrusremovalinSBR:effectofaddednitrateconcentrationandsludgeretentiontime[J].WatSciTech,2001,43(3):191-194.[10] SmoldersGJF,VanderMeijJ,VanLoosdrechtMCM,etal.Modeloftheanaerobicmetabolismofthebio-logicalphosphorusremovalprocess:stoichionetryandpHinfluence[J].biotechnnolbioengn,1994,43:461-470.[11] FalkentoftC.Thesignificanceofzonationinadenitrify-ingphosphorusremovingbiofilm[J].WatRes,1999,33:3303-3310.:(0451)2339810:2002-06-26·36·2003Vol.19                              No.1

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