北京城区雨水径流水质及其主要影响因素

车　伍　欧　岚　汪慧贞　李俊奇(,100044)　　。1998—2000,。,。,、、、、。　　　　ThequalityandmajorinfluentialfactorsofrunoffinBeijingurbanareaCheWu　OuLan　WangHuizhen　LiJunqi(BeijingInstituteofCivilEngineeingandArchitecture,Beijing100044)Abstract　Itisacriticalbasisforutilizationofrainfallresourceandpollutioncontrolofrunoffinurbanareatounderstandrunoffqualityanditsmaininfluentialfactors.Onthebasisoflargequalitydataselectedfromrainfalleventsduring1998—2000inBeijing,thisarticleanalyzesthequalityofrunofffromroofsandroads,andmajorfactorswhichaffectthequality.Thequalityoftherunoffisverypoor,thepollutingstrengthofthefirstflashoftherunoffishigherthatofrawsewage.Inadditiontoairquality,themostimportantinfluentialfactorsareroofmaterial,roadtypeanditspollutioncondition,airtemperature,rainfallintensityandvolume,andintervalofrainfalleventsetc.SomenecessarymanagementmeasurementsforutilizationandpollutioncontroloftheurbanrunoffinBeijingarediscussed.Keywords　runoff;waterquality;pollution;influentialfactors　　。。,2m3。19992000、,,。,,,CODSS。1　,,,。、、、。1COD。COD(),,100mg/L。,SSmg/L,mg/L。2CODSS。CODSS,。,。31Vol.3,No.120021TechniquesandEquipmentforEnvironmentalPollutionControlJan.,20021　2000COD2　(COD/SS)2　,。,。()(),[1](3)。,,,,、。4,。1,。,。。,。3433　4　COD1　CODTPTNPbZnFeMn(mg/L)4570.14.4160.0380.4312.274.60.0091.360.440.060.01CODSS。3　,。1999—2000,、,。52000。,COD,。,,,。,,。,,,COD,,BOD5/COD0.1—0.2[2]。,,、。4　。、。6,。,15min4mm,,SS1985mg/L,CODSS12min。,1h351　:5　(2000)(:3.14,4.18,4.19,4.29,5.9,5.11,5.14,5.18,6.7,6.11,7.4,7.9,8.2,8.8,8.17,8.19,8.22,8.30,9.4,9.19,9.20,9.27,10.5,10.7,10.22)6　1.4mm,,SS166mg/L,COD50min。,,()。,COD:2000mgCOD/m2,400mgCOD/m2,SS400—600mgCOD/m2,,。,、,。7,:3000mgCOD/m27000mgSS/m2,2000mgCOD/m21700mgSS/m2,。6—9,7、8,,,。,,。5　　(1),,:,,,。(2)。,。,,,CODSS。3637　COD/SS　　(3)、、,,。,CODmg/L,,,BOD5/COD0.1—0.2。,。(4)、,,,、、、。[1],,..,2001,14(4):28—30[2],,..,2001,17(6):57—61(责任编辑:郑晓梅)371　: