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A/O李 军,李乃实,王 磊,李大功(, 100124) :,.3,ρ(C)/ρ(N)A/O,.:;A/O;ρ(C)/ρ(N);:TU992.3:A:0254-0037(2009)12-1652-06:2008-09-18.: (1964—),,,,. A/O,A/O、、、[1-3].,,.,3A/Oρ(C)/ρ(N),.1 1.1 A/O1.1. 2. 3. 4. 5. 6. 7. 8. 9.1 10.2 11.3 12. 13. 14.1 A/OFig.1 SchematicdiagramofmultipleA/Oreactorsystem3512200912JOURNALOFBEIJINGUNIVERSITYOFTECHNOLOGYVol.35No.12Dec.2009 A/O,.:1#L×B×H=0.84m×0.47m×0.51m;2#L×B×H=0.79m×0.475m×0.51m,0.36m3,3L×B×H=0.2m×0.15m×0.5m,0.2m1,.,0.5m,,45°;1m,60L,、.,(2～3)mg/L,4mg/L.,60r/min.1.2 .1.1 Table1 Characteristicofwastewatermg/Lρ(NH+4-N)ρ(TN)ρ(COD)ρ(TP)ρ(NO-3-N)ρ(NO-2-N)ρ(BOD)34～5041～53145～2534～60.02～1.40.1～0.540～100310～480 1)120079—200712,:3∶5,20h,(2500～4000)mg/L;8d;ρ(DO)=(2～4)mg/L;R=100%;(22～25)℃.2)220081—20084,:1ρ(C)/ρ(N)3ρ(C)/ρ(N)3、3.8、4、4.2、4.75;(10～15)℃.3)320084—20088,:650mL/min,3∶4∶3,1∶3;(2500～4000)mg/L;14d;ρ(DO)=(2～4)mg/L;R=75%;(19～28)℃.2 2.1 1ρ(C)/ρ(N) 2 ρ(C)/ρ(N)(100%150%)Fig.2 Variationsofalltheparametersatlowρ(C)/ρ(N)(atsludgecircumfluenceratio100%and150%)155%,,(5.6mg/L),33%;27%;35%;COD60%.1,,1.2mg/L,,,[4-5];2,,,,5mg/L.1,,,,,,.1653 12 ,:A/O1A/O,ρ()20mg/L,ρ(COD)30mg/L,,,,.2,30%,2,.1,.,,7mg/L,,.,,.,(0.5mg/L),,.2A/O,20mg/L,COD26mg/L,,,,[6-8].3,15%,2,.3,13mg/L,.,,0.5mg/L,18mg/L;COD20mg/L,,4.8mg/L.2.2 2ρ(C)/ρ(N),[9].,,.ρ(C)/ρ(N).2.2.1 ρ(C)/ρ(N)TN3ρ(C)/ρ(N).ρ(C)/ρ(N),,.,.1,,155%,,,[7].2,,,1,ρ(C)/ρ(N)5,ρ(C)/ρ(N).1,ρ(C)/ρ(N)5.2.2.2 ρ(C)/ρ(N)TP4ρ(C)/ρ(N).5mg/L,,,.1,ρ(C)/ρ(N),.4ρ(C)/ρ(N)、.ρ(C)/ρ(N),/[9].ρ(C)/ρ(N)5,12mg/L,1,,0.5mg/L.ρ(C)/ρ(N)3.3,4mg/L.2,30%,,.,ρ(C)/ρ(N)5,.4,.ρ(C)/ρ(N),,,.,,[10-11].1654 20093 ρ(C)/ρ(N)Fig.3 Totalnitrogenvariationwhenρ(C)/ρ(N)intheuntreatedwaterchanges4 ρ(C)/ρ(N)Fig.4 Variationoftotalphosphoruswhenρ(C)/ρ(N)intheuntreatedwaterchanges 2.3 3A/O2.3.1 TNTN5.,ρ(TN)(34.5～53.7)mg/L,46.6mg/L,ρ(TN)(6.7～18.9)mg/L,12.0mg/L,TN74.2%,《》A.η=1-2N×11+r+R×100%(1),η;R;r;N.(1)A/O81.0%,73.3%,.TN,.A/O,,、pH、、,,[10].5 、ρ(TN)Fig.5 Variationsofinandouttheρ(TN)attakeaperiodoftime6 、ρ(TP)Fig.6 Variationsofinandouttheρ(TP)attakeaperiodoftime2.3.2 TPTP6.,ρ(TP)(4.02～6.1)mg/L,5mg/L,ρ(TP)(0.83～3.13)mg/L,1.8mg/L,TP64.6%.,,.HRT,.,[11].1655 12 ,:A/O3 300,A/O,,:1)ρ(C)/ρ(N),A/O,,,4.8mg/L,.[6],.,18mg/L.[7-8].2)2ρ(C)/ρ(N),,A/O.ρ(C)/ρ(N)3.3,,,.,,3.2mg/L,41%.,12mg/L,73%.ρ(C)/ρ(N),5,,0.56mg/L,88%,7mg/L,83%,A.3)3ρ(C)/ρ(N)、、、.TNTP74.2%64.6%.《》.:[1],.[J].,2007,25(1):84-88.WANGRong-bin,LIJun.Progressofbiologicalphosphorusremovaltechnology[J].ChineseJournalofEnvironmentalEngineering,2007,25(1):84-88.(inChinese)[2],.[J].,2003,19(4):32-36.QIUShen-chu,DINGTang-tang.Stepfeedbiologicalnutrientremovalprocesses[J].ChinaWater&Wastewater,2003,19(4):32-36.(inChinese)[3],.[J].,2007,29(7):533-536.ZHANGSheng,ZHUJian-rong.Basedondifferentmatrixenhancedbiologicalphosphorusremovalsystemofbiochemicalreactionmechanism[J].EnvironmentalPollution&Control,2007,29(7):533-536.(inChinese)[4],,,.C/N[J].,2005,25(6):641-645.ZHUGui-bing,PENGYong-zhen,WUShu-yun,etal.C/Nratioonbiologicalnitrogenremovalofsub-water[J].ChinaEnvironmentalScience,2005,25(6):641-645.(inChinese)[5],.A2/O[J].,1999,17(2):7-9.ZHANGBo,SUYu-min.InvertedA2/Oprocessofnitrogenandphosphorusremovalcapabilities[J].ChineseJournalofEnvironmentalEngineering,1999,17(2):7-9.(inChinese)[6],,,.[J].,2006,7(10):83-87.WANGWei,WANGShu-ying,WANGHai-dong,etal.Continuousflowstepfeedbiologicalnitrogenremovalprocesscontrolpointsandoptimization[J].TechniouesandEquipmentforEnvironmentalPollutionControl,2006,7(10):83-87.(inChinese)[7]RUIZG,JEISOND,RUBILARO,etal.Nitrification-denitrificationvianitriteaccumulationfornitrogenremovalfromwastewaters[J].BioresourTechnol,2006,97(2):330-335.[8]CLAUDIANEO,FLRENTC,YVESC,etal.Artificialaerationtoincreasepollutantremovalefficiencyofconstructed1656 2009wetlandsincoldclimate[J].EcolEng,2006,27:258-264.[9].[D].:,2006.LIUQin.Multi-boxintegrationofalternatewater6phosphorusandnitrogenremovalactivatedsludgeprocess[D].Nanjing:SchoolofCivilEngineering,SoutheastUniversity,2006.(inChinese)[10]NIVALAJ,HOOSMB,CROSSC,etal.Treatmentoflandfillleachateusinganaerated,horizontal,subsurface-flowconstructedwetland[J].SciTotalEnviron,2007,380(1-3):19-27.[11].A/O[D].:,2006.WANGShe-ping.Xi'anfourthsewageplantinfluentwaterqualityanalysisandsub-A/Obiologicalnitrogenremovalprocess[D].Xi'an:SchoolofCivilEngineering,Xi'anUniversityofArchitectureandTechnology,2006.(inChinese)LaboratorialResearchontheTreatmentofA/OProcesstoMunicipalWastewaterLIJun,LINai-shi,WANGLei,LIDa-gong(KeyLaboratoryofGaoBeiDianSewageFarmBeijing,BeijingUniversityofTechnology,Beijing100124,China)Abstract:Themulti-feedmultilevelA/Obiologicalnitrogenremovalprocesshasdistinctadvantagesinnitrogenremoval.Currently,theresearchesallovertheworldonthemulti-feedbiologicalnitrogenremovalprocessarelimitedonlyontheprocessemulationandsynthetic-sizedwastewater.Byusingreal-wastewatersimulatewiththemulti-feedprocess,theoperationalcharacteristicsandtheoptimalcontrolledoperationweremorecompretentivelyinvestigatedwith3stepseachwithdifferentρ(C)/ρ(N)ratios.Keywords:multi-feed;multilevelA/O;lowρ(C)/ρ(N)ratio;nitrogenandphosphorusrem