高效混凝膜生物反应器工艺处理印染废水的研究

:,,1978,2003,,3(No.29976019,No.20176018,No.20376034);(No.BK2003084);(No.BS2003030);231221(11,210009;21,210036),:CODCr75.1%,12503903012,84.6%86.2%,10,CODCr50mgL,CODCr96.2%,,,[14],,,,,,,,,,,11.1,11CODCr(mgL-1)pH%11192125080010130.921269390246101336.61.2(,),,1.311-1.4[5]CODCr:;:;:,UV2100;:,UV210022.1,pH782.26%200L,2.5L,,pH1011,1min(120rmin),,,30s,2min,,,5min,,10%CODCr,3922©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.2.2.1pH15mLL,pH,22pH2,pH,pH10112.2.2pH101121(mLL-1)815202430CODCr(mgL-1)982476325308303300120302827%58.766.884.684.583.4212571199CODCr%17.660.172.774.274.632(mLL-1)815202430CODCr(mgL-1)102349628727928919050131313%62.379.586.286.186.410534999CODCr%19.460.977.478.077.223,20mLL2.2.3200L500mL,500mL,(),35min,5min,10%2.2.4,,105,1h,,6.10g,2.41g,(6.10-2.41)6.10100%=60.5%3(90%),2.2.520mgL,pH101110%CODCr,,,,pH1011,,,5min,,,10%,,(800)1h,,,6%,(4)41CODCr%%72.7301184.673.4301285.0,,,,CODCr81.6%,2.3,49226420048©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.CODCr300mgL,,,[6]2.3.1CODCr300mgL,(HRT)CODCr4HRTCODCr4HRT9h2.3.2HRT9h,CODCr55,CODCr,CODCr85%,CODCr50mgL2.3.3,5,,,22.3.4,6gL(),80L(hm2),,,,,97%,,2.4,CODCr1200mgL300mgL,,,0.31t,0.76t3(1),(2)CODCr75.1%,97.6%(3)2,CODCr50mgL,96.2%5,,(4),,(5),0.31t,20.76t1..,1997,(5):2732762..,2000,(12):39433,.2.,1994,15(1):42454,,..[],1989,30(10):5755775..:,19896,,,..,2003,23(3):4043:(:2004203225)5922©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.nomenonwouldappearthereontheseabed.Andintheareaoutsidethecornerofthedam,thecurrentwouldbecomealittlelarger,however,therewouldnotbeobviouserosionoccurred.Ingeneral,theresponseofdynamicsedimentationtothereclamationprojectinbayswouldbesmall,andbelimitedinthewaterareaneartheproject.Keywords:YueqingbayReclamationprojectDynamicsedimentationResponseYueqingStudyontheprocessofsimultaneousdesulfurizationanddenitrificationfromfluegasusingureaadditivesolution()CenChaoping1GuGuobang2(1.SouthChinaInstituteofEnvironmentalScience,SEPA,GuangzhouGuangdong,510655;2.CollegeofChemicalEn2gineering,SouthChinaUniversityofTechnology,GuangzhouGuangdong510641)Thestudywasconductedontheprocessofsimultane2ousdesulfurizationanddenitrificationfromfluegasusingureaadditivesolution.Thelaboratoryexperimentresultsindicatedthatdesulfurizationfromfluegasusingureaaddi2tivesolutioniseasyandremovalefficiencyofSO2exceeds99%,butremovalefficiencyofNOxareeffectedbythepro2cessparametersandthereisthesameruleofaffectingre2movalefficiencyofNOxwiththeadditivesofEAandPA,removalefficiencyofNOxisinfluencedlessbyconcentra2tionsofureaandadditiveandobservablybyabsorptionreac2tionpHvalueandtemperature,removalefficiencyofNOxisenhancedslowlywiththeincreasingofconcentrationsofureaandadditive,theoptimumpHis7,theoptimumab2sorptionreactiontemperatureis700800.Keywords:UreaAdditiveFluegasSimultaneousdesulfurizationanddenitrifica2tionProcessparametersTheexperimentalstudyonanewsemi-drydesulfurizationusingsprayspoutedbedZhangShaofeng1ZhaoJuan1ZhangZhanfeng2JuYinxuan1LiuYan1ChenXiangyi3(1.SchoolofChemicalEngineeringandTechnology,HebeiUniversityofTechnology,Tianjin300130;2.AcademyofSoftwareEngineering,TsinghuaUniversity,Beijing100084;3.AcademyofChineseTextileTechnologyDesign,Mechan2icDesignBoard,Beijing100037)Anewsemi2drydesulfurizationusingsprayspoutedbedwasintroduced.Ca(OH)2wasusedasdesulfurizerandsomeeffectsonSO2removalweretested,suchasCaSmolarra2tio,inletconcentrationofSO2,staticbedheight,gasinlettemperature,approachtosaturationtemperature,spoutedvelocityanddiameterofspoutedparticles.SO2removaleffi2ciencywasenhancedbyincreasingCaSmolarratio,inletconcentrationofSO2,staticbedheightanddecreasinggasinlettemperature,approachtosaturationtemperature,spoutedvelocityanddiameterofspoutedparticles.ItwasdemonstratedthatSO2removalof90%canachievedatCaS=1whenapproachtosaturationtemperaturewas7.Thistechnologyissuitableformedium2sizedandpint2sizedboil2ersofburningcoalbecauseofexellentcapabilityinfluidiza2tion,transferingheatandmass,desulfurizationeffect.Keywords:SpoutedbedFluegasdesulfrizationFluidizationSemi2drySpray2dryingTheremovalofexcessivePb2+intheleachateofchromeyellowusingchromedregZhanXu1LiuDayin2ZhongKangnian2CaiHesheng1(1.SchoolofEnvironment,ChinaUniversityofGeosciences,WuhanHubei430074;2.DepartmentofEnvironmentSci2enceandEngineering,WuhanInstituteofChemicalTechnol2ogy,WuhanHubei430074)TheremovalofexcessivePb2+,whichwerebroughtinthechromeyellowproductionandthematerialofthepoduc2tiontheleachateofchromedreg,byrectoriteadsorbenthasbeeninvestigatedwiththebatchmethod.Theexperimentalresultshowsthat,whenpHisbetween5.6and7.3,there2actiontimeis90min,andtheratioofadsorbenttowaterquantityis24gL,themassdensityofPb2+isreducedfrom2.5mgLto0.05mgLandremovalratecanreceive98%,whichcomesuptothestandardofGB897821996.Keywords:Drippedandfiltratedsolutionofchromeyel2lowRectoritePbionAdsorptionTreatmentofprintinganddyeingwastewaterbyacomplexcoagulant-MBRtechniqueChenYingwen1ZhangLimin2XiaMingfang2ShenShubao1EnvironmentalPollution&ControlVo