EPP代晋国,宋乾武,张晓丹(中国环境科学研究院工程设计中心,北京100012) :EPP(BAF),:BAF,CODCr49.1%,BOD551.4%,NH+4-N76%,SS52.6%。,。CODCr、BOD5、NH3-N,SS。:;;:X703.1 :A :1671-1556(2008)01-0042-04*PilotTestonEPPPaddingUsedinBAFtoTreatSecondaryEffluentDAIJing-guo,SONGQian-wu,ZHANGXiao-dan(EngineeringDesignCenterofChineseResearchAcademyofEnvironmentalSciences,Beijing100012,China)Abstract:ThestudywasmadeonEPPpaddingfromKoreausedinBAF(BiologicalAeratedFilter)totreatthesecondaryeffluentandtheexperimentalresultsshowedthegoodeffect:theCODCrremova1ratewas49.1%,theBOD5remova1ratewas51.4%,theNH4+-Nremova1ratewas76%andtheSSremova1ratewas52.6%.Whenthesystemwasinastableoperation,theeffluentcouldmeettherecyclingwaterstandardofthecity.Changingthehydraulicloadingandgas/liquidhadinfluenceontheremovalrateofCODCr,BOD5andNH4+-N,buthadlittleinfluenceontheremovalrateofSS.Keywords:biologicalaeratedfilter;secondaryeffluent;EPPpadding0 ,,。,,。,,BAF(BiologicalAeratedFilter,)。BAF,、、、、[1~3]。,[4]。,EPP,,,、,。1 1.1 A2O,1。15 12008 3 安全与环境工程SafetyandEnvironmentalEngineering Vol.15 No.1Mar. 2008*:2007-10-09 :2007-10-12:(1973—),,,。E-mail:daijinguo11@sohu.com1 Table1 InfluentwaterqualityofthebioreactorCODCrBOD5NH3-N/℃SSpH36~6010~3016.8~2518~22≤307.3~7.8 :CORCr、BOD5、NH3-N、SSmg/L。1.2 :CODCr;BOD5BOD5;NH+4-N;SS;;pH。2 2.1 4(1),600mm×500mm×5700mm,1800mm。,,,,。,。,。。1 Fig.1 Schemeofexperimentalpilotandflowchart1.;2.;3.;4.;5.;6.EPP;7.;8.;9.;10.2.2 EPP,,、。,,1000~1350m2/m3,3~5mm,0.07g/cm3,2。2 EPPFig.2 EPPpaddingusedinbiologicaltreatmentbiologicalaeratedfilter3 3.1 ,,20~21℃。,,。,,1m3/h,5m3/h,,2m3/h。,。,(),30d。3.2 20051012006630,32。2 Table2 Experimentalconditions/(m3·h-1)/(m·h-1)/h/℃21.671.444∶1183。3 Table3 EffluentwaterqualityforthesysteminstableoperationCODCrBOD5SSNH3-NBAF/(mg·L-1)36.2~42.7(39.5)16.2~22.7(17.5)20.6~30.3(30.2)16.8~21.5(19.8)BAF/(mg·L-1)19.2~27.0(20.1)5.2~14.6(8.5)7.5~10..2(8.81)1.5~9.5(4.75)/%36.0~46.8(49.1)35.4~39.5(51.4)66.5~74.8(70.8)60.6~67.3(76) :。43第1期 代晋国等:EPP填料曝气生物滤池处理城市污水厂二级出水的中试研究 CODCr39.5mg/L,20.1mg/L,49.1%;BOD517.5mg/L,8.5mg/L(BOD5≤10mg/L(GB50335-2002),51.4%;NH3-N19.8mg/L,4.75mg/L(NH3-N≤10mg/L(GB50335-2002)),76%;SS30.2mg/L,8.81mg/L,70.8%。,。3.3 BAF,、、、、[5~7]。,,。3.3.1 不同水力负荷系统对去除效果的影响研究,,。4。4 Table4 Experimentalconditions/(m3·h-1)/(m·h-1)/h/℃11.00.832.164∶120~2121.51.251.444∶120~21321.671.074∶120~2142.52.080.864∶120~21:(1)CODCr。3CODCr。1CODCr42.1mg/L,23.4mg/L,CODCr44.24%;2CODCr43.0mg/L,24.5mg/L,CODCr42.79%;3CODCr42.57mg/L,26.76mg/L,CODCr36.87%;4CODCr41.93mg/L,27.19mg/L,CODCr35.07%。,,CODCr,1,,,CODCr,。(2)SS。4SS。4,,SS,68%64.6%。SS。(3)。5NH+4-N。,,NH+4-N,85%78.7%。3.0mg/L4.0mg/L。NH+4-N。5 NH+4-NFig.5 InfluenceofdifferenthydraulicloadingsonNH+4-Nremovalrate44 安全与环境工程 第15卷3.3.2 气水比对CODCr、BOD5和SS去除效果的影响,3∶1、4∶1、5∶1、6∶1,。5CODCr、BOD5SS。1.07h、3∶16∶1,CODCr46%60%,BOD557.7%71.5%,SS62.7%66.4%。NH+4-N74.5%86.6%。CODCr0.44kg/m3·d0.63kg/m3·d,BOD50.22kg/m3·d0.28kg/m3·d,SS。NH+4-N0.30kg/m3·d0.26kg/m3·d,,,CODCr、BOD5、NH+4-N,。5 CODCr、BOD5SSTable5 Influenceofgas/liquidontheremovalofCOD,BOD5andSS%/(kg·m-3·d-1)CODCr3∶14∶15∶16∶136.2~65.3(47.4)38.7~58.4(47.8)40.6~67.9(50.2)36.3~55.6(52.1)18.7~32.3(25.6)16.5~30.2(22.5)18.5~29.3(23.0)19.1~22.3(20.5)465354600.35~0.66(0.44)0.44~0.56(0.51)0.44~0.77(0.54)0.34~0.67(0.63)BOD53∶14∶15∶16∶119.418.520.319.78.28.07.245.657.759.564.371.50.220.220.260.28SS3∶14∶15∶16∶124.6~30.3(28.4)22.7~30.9(27.3)23.6~29.8(27.8)24.3~28.7(26.5)9.7~12.3(10.6)8.5~12.1(9.5)9.6~11.9(10.0)7.1~9.3(8.9)62.765.26466.40.30~0.36(0.35)0.27~0.37(0.36)0.28~0.36(0.36)0.35~0.39(0.35)NH+4-N3∶14∶15∶16∶119.6~21.3(20.4)18.7~20.9(19.7)20.4~22.8(21.5)18.3~21.7(20.9)4.7~5.8(5.2)4.0~5.2(4.1)3.7~4.0(3.5)2.5~3.0(2.8)74.579.183.786.60.30~0.31(0.30)0.29~0.31(0.31)0.33~0.38(0.36)0.32~0.37(0.36) :。4 (1)EPP,CODCr、BOD5、NH+4-N、SS39.5mg/L、17.5mg/L、19.8mg/L30.2mg/L,1.44h,4∶1,CODCr、BOD5、NH+4-N、SS20.1mg/L、8.5mg/L、4.75mg/L14.3mg/L,4。(2)4:1,,CODCr,44.24%35.07%;NH+4-N85%78.7%;SS。(3)3∶1,4∶1,5∶1,6∶1,CODCr46%60%,BOD557.7%71.5%,SS62.7%66.4%,NH+4-N74.5%86.6%,,SS。:[1],,,.[J].,1999,20(6):49-52.[2]Henze,M.,P.Harrenmoes,J.L.C.Jansen,etal.WastewaterTreatment:BiologicalandChemicalProcesses[M].2ndEdi-tion.NewYork:Springer,1997.[3],.[J].,2003,22(4):459-461.[4],.[J].(),2007,4:320.[5],,.COD[J].,2002,18(12):13-15[6],,,.[J].,2003,19(5):48-50.[7],,,.[J].,2004,22(5):27-29.45第1期 代晋国等:EPP填料曝气生物滤池处理城市污水厂二级出水的中试研究