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:1006-7329(2002)03-0106-06X,,,,,(,400045):,BOD5SS,,,,,:;;;:X703:A,BOD5SS,,,,11.1,(),,(NH4+)(NO2-)(NO3-),,,,(),,(N2N2O)1.21,,:,;,;,,,,2,Bardenpho24320026JournalofChongqingJianzhuUniversityVol.24No.3Jun.2002X:2002-01-11:(1938-),,,,,中国城镇水网(3),,DO,,DO,-,-,,,,3[3]:,,,,,NH4+NO2-:,,22.1,1.5%2.0%,-,377013:中国城镇水网[2],,,,,6%(),,,,(),,ATP,AAPHB(-),PHB,TCA()ATP,,,2.24,A/O(anaerobic/oxic),,BOD,,BOD[9],,48%63%,(Selector),,,Bardenpho(Bardenpho)),0.8mg/l(7mg/l)Phoredox(Bardenpho),UCTUCT,A2/O43,,,3.1,,,(SRT)(),,,,2,35d,1015d,,,BOD,,,,BOD80124中国城镇水网(BOD5/TP),[2],1.0mg/l,BOD5/TP2030[2],BOD5/TP15,,,BOD,,,1mg/l,3.3A2/O,,,,,,,,,UCT4,,A2/O,[3],,,,,,,,,,[4]:AAOA/A/OAAO,,,,,,,,A2/O,,,,9013:中国城镇水网:,,;,1m3/d,55UCT,Bardenpho,,(),()9m,345kW,27.5kW,12,,CNP,0.2kWh,GB8978-1996,,TP1.9mg/l,TP1mg/l,,,5(GB8978-1996),,,,,,TP1mg/lTP0.5mg/l,,(),:[1]MinoT,SatohH,andMatzuoT.Metabolismofdifferentbacterialpopulationsinenhancedbiologicalphosphatremovalpro2cessJ.WaterSciTech,1994,29(7):67-70.[2],.M.:,1998.[3],.J.,1999,18(1):16-18.[4],.J.,2002,26(12):1-4.[5].J.,1999,18(4):162-164.01124中国城镇水网[6],./(SND)J.,2001,19(8):17-20.[7],.J.,2002,6(12):11-19.[8],.PHBJ.,2000,16(7):5-7.[9],.M.:,1999.[10],.M.:,2001.AStudyonMechanismofBiologicalDenitrificationandPhosphorusRemovalforUrbanWastewaterDENGRong-sen,GUOJian,WANGTao,LIWei-min(FacultyofUrbanConstructionandEnvironmentalEngineering,ChongqingUniversity,Chongqing400045,China)Abstract:ThetreatmentparametersinmunicipaltreatmentplantincludeCOD,BOD5,SS,NandPetc.Theparadoxicalrelationshipsareinevitablyproducedbecauseofthedifferentrequirementsondenitrificationandphosphorremoval.Inthispaper,thefundamentalmechanismofbiologicaldenitrificationandphosphorremovalandtheirpresentsituationandprogressarepresented.Onthebasisofanalysisontheparadoxicalrelationshipbetweenbiologicaldenitrificationandphosphorremoval,thedevelopmentofdenitrificationandphosphorre2movalprocesswasdiscussedandthefurtherstudyinthisfieldwasproposed.Keywords:urbanwastewater;biologicaltreatmentofwastewater;denitrificationandphosphorremoval;mech2anism(90)PropertiesofConcreteMadefromCompositeFineAggregateZHANGJian2bo1,YANGChang2hui2,FUShan2chuang3,GUOBao2qiang2,MENGZhao2fu4,DIChun2fu5(1.HunanYueyangRoad2bridgeLtd.,Hunan414000,China;2.ChongqingUniversity,Chongqing400045,Chi2na;3.ChongqingHuapuBridgeLtd.,Chongqing400000,China;4.ChongqingResearchInstituteofArchitecture,Chongqing400000,China;5.ChongqingYujiangCivilEngineeringLtd.,Chongqing400000,China)Abstract:Inthispaper,theworkabiltiy,strength.Shrinkageandcreepofconcretemadefromcompositefineag2gregate(CFC)werestudied.ResuitsshowthatthepropertiesofCFCisfamiliartothoseofconcretemadefromnaturalmiddle-sizeoffineaggregatewhenthemixtureproportionisthesame.Thecompositefineaggregatecomposedofman-madelimestonesandandnaturalsuper-finesandcouldbeusedforproducingflowingcor2crete.Keywords:compositesand;workability;durability1113:中国城镇水网