城市污水生物除磷脱氮机理研究探讨邓荣森

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· ·:1006-7329(2002)03-0106-06邓荣森, 郎 建, 王 涛, 李伟民, 张景波, 郭兴芳( , 400045):目前,城市污水处理厂的处理对象包括BOD5、SS和氮、磷等营养物质。就脱氮与除磷而言,由于各自过程的要求不同,二者之间存在一定的矛盾关系。讨论了城市污水生物除磷脱氮的基本原理,综述了城市污水脱氮除磷机理方面的研究现状和进展。分析了脱氮与除磷二者之间的矛盾关系,在此基础之上对碳氮磷合并去除工艺进行了比较,并对以后开展这方面的研究提出了展望。:城市污水;污水生物处理;除磷脱氮;机理:X703:A,。BOD5、SS、。,,。。,,。1 1.1 ,()。,,(NH4+)(NO2-)(NO3-)。,,,。,(),,(N2N2O)。1.2 1。,,。:,;,;,。。,,,。。2,“Bardenpho”。第24卷 第3期2002年6月      重庆建筑大学学报JournalofChongqingJianzhuUniversity      Vol.24 No.3Jun.2002:2002-01-11:(1938-),,,,,。1 2 Bardenpho,,。,,;,,,。,。,,15d,。。,(3)。,,DO,,DO,-,-,。,,,。3 [3]:,,,。,,NH4+NO2-。:,,。2 2.1 ,1.5%~2.0%。,-,3~7。107第3期       邓荣森等:城市污水生物除磷脱氮机理研究探讨           [2],,、,“”。,。,。6%(),。,,,(“”)。,,ATP,A。APHB(β-)。,PHB,TCA()ATP,。,“”,。2.2 4,A/O(anaerobic/oxic)。,,BOD。,,BOD。[9],,48%~63%,(Selector)。,,,。。“Bardenpho”(Bardenpho)),0.8mg/l(7mg/l)。Phoredox(Bardenpho),UCTUCT,A2/O。4 3 ,。,,。3.1 ,。,,(SRT)()。,。,。,,2,3~5d,10~15d,,。,BOD,。,,,BOD。108               重庆建筑大学学报             第24卷,“”,;,,。,3.5~7d。3.2 ,,。,,。,,,。,BOD5TKN5~8,。、(BOD5/TP)。,。[2],1.0mg/l,BOD5/TP20~30。[2],BOD5/TP15,。,,。BOD,。,,1mg/l,。3.3 A2/O,,。,,。,,。,。。。,,UCT。4 ,,A2/O。,。[3],,,,。,,,。,,。,[4]:AAO、A/A/O、AAO。,,,。。,。,,,。,A2/O,。,,。,109第3期       邓荣森等:城市污水生物除磷脱氮机理研究探讨           ,,,。,。。:。,。、,;。。,1m3/d,5。5 UCT,Bardenpho。,。,()。。,。()9m,3×45kW,2×7.5kW。,1~2,,C、N、P,。0.2kWh。,GB8978-1996,,TP1.9mg/l,TP1mg/l。,,,。5 (GB8978-1996)。,,,,,。,TP1mg/l。TP0.5mg/l。,。,。(),。:[1] MinoT,SatohH,andMatzuoT.Metabolismofdifferentbacterialpopulationsinenhancedbiologicalphosphatremovalpro-cess〔J〕.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):162-164.110               重庆建筑大学学报             第24卷[6] ,./(SND)〔J〕.,2001,19(8):17-20.[7] ,.〔J〕.,2002,6(12):11-19.[8] ,.PHB〔J〕.,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,thedevelopmentofdenitrificationandphosphorre-movalprocesswasdiscussedandthefurtherstudyinthisfieldwasproposed.Keywords:urbanwastewater;biologicaltreatmentofwastewater;denitrificationandphosphorremoval;mech-anism(90)PropertiesofConcreteMadefromCompositeFineAggregateZHANGJian-bo1,YANGChang-hui2,FUShan-chuang3,GUOBao-qiang2,MENGZhao-fu4,DIChun-fu5(1.HunanYueyangRoad-bridgeLtd.,Hunan414000,China;2.ChongqingUniversity,Chongqing400045,Chi-na;3.ChongqingHuapuBridgeLtd.,Chongqing400000,China;4.ChongqingResearchInstituteofArchitecture,Chongqing400000,China;5.ChongqingYujiangCivilEngineeringLtd.,Chongqing400000,China)Abstract:Inthispaper,theworkabiltiy,strength.Shrinkageandcreepofconcretemadefromcompositefineag-gregate(CFC)werestudied.ResuitsshowthatthepropertiesofCFCisfamiliartothoseofconcretemadefromnaturalmiddle-sizeoffineaggregatewhenthemixtureproportionisthesame.Thecompositefineaggregatecomposedofman-madelimestonesandandnaturalsuper-finesandcouldbeusedforproducingflowingcor-crete.Keywords:compositesand;workability;durability111第3期       邓荣森等:城市污水生物除磷脱氮机理研究探讨           

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