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A2/O23,COD50%45%,(A2/O2),CODSS9313%8215%8715%9215%,,A2/O2031998,1998,,,,[12],[3],,,,1,3000m3,,,COD,,COD,,A2/O2,,,,,,22113000m3400m3500m3,COD12400mg/L,20000mg/L,pH14,BOD5/COD0110125PSPVA11COD/mg/LSS/mg/L//mg/LpH800130040060010016061081288050015089152121,121338Vol125No161999转载(1)pH,()1m1m2mH2SO4pH=9(2)()10m10m215m,2h,(3)1000m3,8h,MLSS4g/L6g/L,DO015mg/L(4)3,400m3,2h4h,MLSS10g/L12g/L(5)400m3,4h,MLSS3g/L,DO118mg/L215mg/L(6)400m3,4h,MLSS2g/L3g/L,DO215mg/L310mg/L(7)3,6m6m2m3,220m3,2h21512COD,22,,,pH,,212099017633151039015COD/mg/L137089370632210787989603544281967861141751321401920180S2-/mg/L3193113152110195017871761971131301970193333,COD,SS,COD20%,COD,SS,(A2/O2)44,A2/O2,,,A2/O2,Vol125No16199939中国科技论文在线(4):622,,..,1998,24(4):373.2.,1998,11(1):12]:200092()#:(021)65984526(021)62488898297125215003:1998O10O2840Vol125No161999中国科技论文在线(27)Abstract:InThehydraulicdesignofstormsewerthefluxofthepipelinewillberandomduetotheinconstantofthehy2draulicfaciors.InthispapertheinconstantofthehydraulicfactorsarediscussedandthemeanfluxofthepipelinehasbeengivenbyThestatisticalparametersofthefluxsolvedfromasecondordermatrix.Alsotheformulaetocalculatethevariationcoefficientandthecalculationmethodtodeterminethereliabilityofthehydraulicdesignofthepipelinearededicated.Thecalculatingresultsshowthatthereliabilityofthecurrentlyappliedcalculationisnothigh.TreatmentofLimeStraw-PulpWastewater.MaJinetal(30)Abstract:Thedesignandpilotrunofafacilitytotreatlimestrawpulpwastewaterbyacidificationhydrolyzation-bio2logicalcontactoxidation-coagulantsedimentationprocessarepresentedinthispaper.ThisprojectisconstructedonThemeasuressuitabletolocalconditionswithadvantagesofbothlowinvestmentandoperatingexpenses.Alsotheeffiuentisfairtomeettherequirementofdischargestandard.OntheCentralizedWastewaterTreatmentofMediumandSmallEnterprisesTianGangetal(34)Abstract:ThepracticalperformancedataofanindustrialdevelopmentzoneinSuzhoucityshowthatthesuperiorityhasbeenappearedofcentralizedwastewatertreatmentthandispersedtreatment.Thecentralizedwastewatertreatmenthasadvan2tagesintermsofstableflowrate,betterwastewaterquality,simplifiedprocess,easymanagementandbettereffiuentquality.ImprovedA2/O2ProcesstoTreatSilkPrintingandDyeingWastewaterXiaoYutangetal(38)Abstract:Theconventionalbiologicalprocessisloweffectivetotreatsilkprintinganddyeingwastewaterwhichiscon2sideredasnon-degradablewithremovalsof50%and45%forCODandS2-respectively.Thisisfartomeettherequire2mentofdischargestandard.ForamodifiedA2/O2Processtheremovalratiosincreasedto93.3%,82.5%and92.5%forCOD,SSandS2-respectively.ThismeansthattheeffLuentcouldbefitthedischargestandardfairly.Thisprocesshasad2vanTagesoflowoperationexpensesandreliableperformance,itwillbehelpfulfortheSilkPrintingandDyeingWastewatertreatmentofsmallormediumcapacities.ExperimentandResearchontheMnandFeRemovalfromIndustrialCoolingWaterHuGuoqiangeial(41)Abstract:Thispaperfocusesontheresearchofaprocesstoremovemanganeseandironfromtheindustrialcoolingwaterbycontactoxidationprocessusingnaturalfilteringmediaofanthraciteandquartzite.Theoperatingparametersare:sizeoffil2TeringmaTerial0.5to1.0mm,filteringbedheight800mm,filteringspeed10to12m/h,workingcycle96hours,back2washingstrength13L/(m2s)andbackwashingtime5to7min.InthetreatedwatertheresidualMn2+concentrationisbe2low0.04mg/Lwithremovalratioupto90%andthetotalFeistracelevel.BriefontheApplicationoftheConcentrationFactorofTotalHardnessincirculatingCoolingWaterQualityMonitoringWangYongminetal(44)ProblemsinDesigningCirculatingCoolingWaterofAirConditionSystemZuoYazhou(45)Abstract:Somenoticeableproblemsindesigningcirculatingcoolingwatersystemsforairconditionofmediumandsmallcapacities,includingthesystemlayout,thewaterrestoringbasinofcoolingtowerandwaterqualitytreatmentaredescribedAnti-FircDesignoftheCentennialAuditoriumofPekingUniversityLiuPeng(51)Abstract:Thefire-systemdesignofthecentennialauditoriumofPekinguniversityisdiscussedandtheschemeofitisprescnted.中国科技论文在线