常州焦化厂污水处理现状及工艺指标控制许宏良

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许宏良( 213016)    、,A/O,。    A/O  WastewaterTreatmentStatusofChangzhouCokingPlantandtheControlforItsProcessIndexXuHongliang(ChangzhouHigherVocationalandTechnicalSchool Changzhou,Jiangsu213016)Abstract Thesource,amountandqualityofwastewaterinChangzhouCokingPlantisintroduced,theprocessofA/Obiologicalmembranetechnologyisdescribedandtheproblemsexistedandlessonsinproductionareputforward.Keywords cokingwastewater A/Obiologicalmembrane process lessons  ,、、,、(a)、、,,,。1 、,,,,,,,,,;;;;。1000m3/d。1。1 /(m3·h-1)/(g·L-1)/(mg·L-1)CODcr2~30.4~1.215~400.5~1.25~1520.02~0.125~800.01~0.050.5~511.2~1.710~300.5~0.65~60.5m3/d0.04~0.0710~3015~205~123~40.00110.10.06~0.2  1,。,,,,。2 ,4:、、、。2.1 ,,。:、、Ⅱ、、,。:60%,88%;Ⅰ90%,,10mg/L,;Ⅰ、Ⅱ()Fe[Fe(CN)6]4-、[Fe(CN)6]3+,Ⅰ80%。CODcr,,35%,10%,CODcr。,。,、。,,25~35℃。,,:300mg/L;5mg/L;500mg/L;CODcr2g/L;25~35℃。2.2 ·15·2005313March2005               IndustrialSafetyandEnvironmentalProtection2.2.1 ,,r=1∶5,。。、、、、:2.2.2 42m3/h,88.6m3/min,r=1∶5。,,3mg/L,。、,,31~36℃,,()。,,,。31~36℃。pH,,,,,pH,,pH。、、pH,,NaH2PO4。,、,,,。,15kg/d,24h。,。2.2.3 ,(),A/O。,,,。2002,,2。,,GB8978-1996。2.3 Ⅲ、,。2.4 Ⅰ、Ⅱ、Ⅲ、2 20021~6  mg/L  1234561051571231441201220.130.160.40.070.060.07/%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,,。,,2~3d,,99%(144m2)。,,;。。。5t。2.5 1,2。1 2 3 ,、,。,“A/O”。,。,。,,:①,,;②,,。,“”,;③,,,·16·刘秋新 周传辉 孙小国( 430070)    ,,,,,,,15°,,,。     ResearchesonVentilationWaysofWeldingWorkshopsinMotorFactoriesLiuQiuxing ZhouChuanhui SunXiaoguo(CollegeofUrbanConstrution,WuhanUniversityofScienceandTechnology Wuhan430070)Abstract Duringtheweldingprocessintheworkshopofthemotorfactory,someharmfulgasisgenerated.Howtocontrolthedischargeharmfulthingsandsavetherunningcostisaproblem.Takingapracticalengineeringasanexample,inductiveventilationwaysarestudiedandthenumericmodelcalculationisconducted.Bycomparingittothenormalventilationway,theresultshowsthatadoptinginductiveventi-lationwaywith15degreesprayinganglehelpsthedischargeofharmfulthings,ventilationeffectsandenergysaving.Keywords weldingworkshop ventilationway numericmodel  ,,,,。,,,。,,。,??,,,15°,,,。1 144m,7.2m,12m,30m。4,2。1。2 2.1 ,≥6.9g/h,8h。Ly0dτ+xdτ-Lydτ=Vdy,[1]:    ∫τ0dτV=-1L∫y2y1d(Ly0+x-Ly)Ly0+x-Ly(1)1  τ,τ≥8h;y0,y0=0mg/m3;y1,y1=0mg/m3;y2,y2≤2mg/m3;L,m3/s;V,m3。,,K=6,L=2.07m3/h。;④,,;,。,2.6。A/O,GB89781996。:许宏良,曾任焦化厂环境工程师,本科学历,毕业于南京理工大学。(:20040914)·17·2005313March2005               IndustrialSafetyandEnvironmentalProtection

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