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(213016),A/O,A/OWastewaterTreatmentStatusofChangzhouCokingPlantandtheControlforItsProcessIndexXuHongliang(ChangzhouHigherVocationalandTechnicalSchoolChangzhou,Jiangsu213016)AbstractThesource,amountandqualityofwastewaterinChangzhouCokingPlantisintroduced,theprocessofA/Obiologicalmembranetechnologyisdescribedandtheproblemsexistedandlessonsinproductionareputforward.KeywordscokingwastewaterA/Obiologicalmembraneprocesslessons,,(a),,,1,,,,,,,,,;;;;1000m3/d11/(m3h-1)/(gL-1)/(mgL-1)CODcr230.41.215400.51.251520.020.125800.010.050.5511.21.710300.50.6560.5m3/d0.040.0710301520512340.00110.10.060.21,,,,,2,4:2.1,,:,:60%,88%;90%,,10mg/L,;()Fe[Fe(CN)6]4-[Fe(CN)6]3+,80%CODcr,,35%,10%,CODcr,,,,2535,,:300mg/L;5mg/L;500mg/L;CODcr2g/L;25352.2512005313March2005IndustrialSafetyandEnvironmentalProtection©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.中国城镇水网=15,:2.2.242m3/h,88.6m3/min,r=15,,3mg/L,,,3136,,(),,,3136pH,,,,,pH,,pHpH,,NaH2PO4,,,,,15kg/d,24h,2.2.3,(),A/O,,,2002,,2,,GB8978-19962.3,2.42200216mg/L1234561051571231441201220.130.160.40.070.060.07/%99.999.999.799.999.999.93.323.232.33.843.432.70.340.390.350.370.130.11/%90888590.4969611820014115011413373878566.63328.8/%3856.54055.67178.3CODcr106513821156127311051133169212210201197163/%84858284.282.385.6,,,,23d,,99%(144m2),,;5t2.51,2123,,,A/O,,,,:,,;,,,,;,,,61©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.中国城镇水网(430070),,,,,,,15,,,ResearchesonVentilationWaysofWeldingWorkshopsinMotorFactoriesLiuQiuxingZhouChuanhuiSunXiaoguo(CollegeofUrbanConstrution,WuhanUniversityofScienceandTechnologyWuhan430070)AbstractDuringtheweldingprocessintheworkshopofthemotorfactory,someharmfulgasisgenerated.Howtocontrolthedischargeharmfulthingsandsavetherunningcostisaproblem.Takingapracticalengineeringasanexample,inductiveventilationwaysarestudiedandthenumericmodelcalculationisconducted.Bycomparingittothenormalventilationway,theresultshowsthatadoptinginductiveventi2lationwaywith15degreesprayinganglehelpsthedischargeofharmfulthings,ventilationeffectsandenergysaving.Keywordsweldingworkshopventilationwaynumericmodel,,,,,,,,,,??,,,15,,,1144m,7.2m,12m,30m4,2122.1,6.9g/h,8hLy0d+xd-Lyd=Vdy,[1]:0dV=-1Ly2y1d(Ly0+x-Ly)Ly0+x-Ly(1)1,8h;y0,y0=0mg/m3;y1,y1=0mg/m3;y2,y22mg/m3;L,m3/s;V,m3,,K=6,L=2.07m3/h;,,;,,2.6A/O,GB89781996:,,,(:20040914)712005313March2005IndustrialSafetyandEnvironmentalProtection©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.中国城镇水网