20112!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!,,。3(1),,,[8]。(2),。(3),、。,、、、、,、3,。:[1],.[J].,1993(2):19-22.[2].[J].,1998,17(2):43-46.[3],.[J].,2000(10):11-13[4],,.[J].,2000,19(2).[5]E.C.Kipkorir,D.Raes,J.Labadie.Optimalallocationofshort-termirrigationsupply[J].IrrigationandDrainageSystem,2002(15):247-267.[6]N.H.Rao,P.B.S.SarmaandSubhashChander,Real-timeadaptiveirrigationschedulingunderalimitedwatersupply[J].AgriculturalWaterManagement,1992(20):267-279.[7],,.[J].,2004(11):135-137.[8],,.[J].,2000(1):46-48.1,1,1,2(1.,541004;2.,541004):、,,。:;;X703A1672-9900201102-0026-04StudyontheModesofAerationandPushFlowofOxidationDitchProcessWEIWei1,WEIJian-wen1,WANGDun-qiu1,GENGLin-lin2(1.CollegeofEnvironmentalScienceandTechnology,GuangxiKeyLaboratoryofEnvironmentalEngineeringandProtectingAssessment,Guilin541004,China;2.CollegeofMechanicalandControlEngineering,GuilinUniversityofTechnology,Guilin541004,China)Abstract:Thispaperintroducesthestructure,workingprincipleandcharacteristicsoftheaeratorsandtheplug-flowdevicesoftheoxidationditchprocessaswellastheresearchprogressintheaerationandplugflow.Atlasttheresearchtrendsareindicated.Keywords:oxidationditch;aeration;plugflow[]2011-01-17[](2008ZX07317-02);(NCET-08-0649)[](1986-),(),,,,(Tel)15296806355。####,,,。、。、,。,、、、,,、、、[1]。,1920sheffield,,。1954,(A.Pasveer)KessenerVoorshoten,[2],。1967,DHv、、·26·20112,,,:,[3],。,,。,,,;,,0.25m/s[4]。,。1、、,、、。,,2~3mg/L。,BOD5;,。,,,,,,[5]。,。,、、、、,。,。,[6]。1.11.1.1,、、,、[7]。:①,;②,,[8]。(1)、、。3.0~3.5m,1.5~2.5kgO2/(kW·h)。,,,,,,。,,,。1.1.2。、、,、。(2)、、、。3.5~6.5m[9]。,,(),[4]。:,,,,。,,、、。1.1.3。:15%~30%;,,;,,,,[10]。(3)[4]。,,,,,,,,,。,、。,,。1.1.4,,。,(4~5m),,[11]。,,,,BOD。,,。(4),,。,,。,、,。、,,。1.1.5,·27·20112。,。、、、。:,,。,。,,,、[9]。1.1.61.1.6.1,。,,,[12]。ABS、,,。:,,(:20~30μm),,,,。,,,,,,;,,,,,,。。,,。1.1.6.2(5)、,,,,,。,。、、、、。,,。:,,,,,,[13]。,、、,、,,、、,,、,、、,。,,,、,,、,、,,,,[14]。。1.2,1。2,,2。3、,。,、、,,。,。,。,。,。,,,,,51/(kgO2/h)[8]74~81[15]0.8~1.12[16]5.53~8.21[17]—[18]—2,,,,,,,,,,、,,,,,,,,。,,,,,,,,,,,(4~5m),,,,,,,,,,,,;,,,,,,:·28·2011211.1,,0~40cm,5mm,,1。1,2(1.,300250;2.,225002):,,—。,、,()。:;;;;X53A1672-9900201102-0029-03[]2011-02-23[](1981-),(),,,,(Tel)13920716146。TransportionandAccumulationofHeavyMetalsinSoilundertheConditionofDifferentSoilTextureLIZhi-tao1,NIUDong-fang2(1.HebeiResearchInstituteofInvestigation&DesignofWaterConservancy&Hydropower,Tianjin300250,China;2.HydraulicEngineeringLtdofJiangsuProvince,Yangzhou225002,China)Abstract:Theareaofsewageirrigationbecomesmoreandmorelarge.Itisveryimportanttostudyheavymentalpollutionfromsewageirrigation,especiallytheeffcetofheavymentalonsoil-cropsystem.Simulationsoilcolumn(indoor)wereadoptedtostudythetransportionandaccumulationofleadandcadmiuminsoilundertheconditionofdifferentsoiltexture(sandysoilandsandyloam).Keywords:lead;cadmium;soil;transportion;accumulation,,。,,。,,、、,。:[1].[J].,2001,27(9):12-14.[2],.[M].:,2005.[3],,.Carrousel[J].,2002,28(2):19-21.[4].[D].:,2008.[5],,.[J].,2008,20(4):26-27.[6],,,.Carrousel[J].,2007,27(6):792-796.[7],.[J].,2008,27(3):67-69.[8].[J].,2006,172(3):22-24.[9],,.[J].,2007(6):40-44.[10],,.[J].,2005,24(4):43-46.[11].[M].:,2003.[12].Carrousel-2000[J].,2009,3(2):146.[13],,.[J].,2007(12):46-50.[14],,,.[J].,2003(12):46-50.[15],,.[J].,2001,27(12):45.[16],.[J].,2001,27(5):278.[17].[J].,2008(6):40.[18],,,.[J].,2010,26(22):69-71.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1/mm/(g/kg)pH/(mg/kg)/(mg/kg)<0.002%0.002%~0.05%>0.05%2.124.6893.200.560.350.00628.516.130.053.705.5490.761.140.630.00867.977.940.048·29·