高效澄清池在污水处理改造工程中的应用刘建斌

刘建斌(,100875)　楚尚烨　范　飞　陆剑锋(,100875)　介绍丹东化纤股份公司污水处理系统现状,现有处理工艺已无法满足实际需要,需对污水处理系统进行改造。改造工程采用高效澄清池取代原机械搅拌澄清池,提高澄清池混合反应效率及污水处理能力和出水水质。通过实际运行,表明高效澄清池适用于化纤污水处理工程。　机械搅拌澄清池　高效澄清池　改造0　198725000m3d,,,18000m3d。,,,,,40000m3d,,,,。1　、,、1。1　(40000m3d)mgL(pH)BOD5CODCrSSpHZn2+S2-≤150≤400≤1502～9≤40≤3≤30≤50≤706～9≤2≤0.52　2.1　处理工艺流程的确定,、,,、,、。,:(1)18000m3d40000m3d,,,。(2),、,,S2-Zn2+。(3),pH,Zn2+。(4),,,,。(5)pH11,。(6)、,,。,,。:,;:。。,,,。:,,;,,;。,、,;,13　　　20078254DOI:10.13205/j.hjgc.2007.04.0042。,,,,;,,,。,,,;,。5,16900mm,5000m3d,0.25mms。1。1　2.2　改造设计要点2.2.1　,,,S2-。,,2,80mm。2.2.2　720m3,40000m3d,26min,。pH,S2-。2.2.3　,,,,5。,8000m3d。,410000m3d。:(1),。(2),300mm400mm。(3)。(4)。(5),。(6)pH,10%pH9.5～10,Zn2+,pH。(7)Zn2+2mgL,S2-0.5mgL,CODCr30%。2.2.4　,,。。:(1)。,,,。(2),。10%。(3)220m3。,。,2,。(4)pH,,pH9.5～10。3　2004-06,,,,,72h,,15000m3d。,,。2,,Zn2+2mgL,S2-0.3mgL,30mgL。4　500,0.40m3。5　(1),,,14　　　20078254　　18000m3d40000m3d,,,(DB2160-89)。(2),,。(3),。(4),。[1]　..:,1980:　　301-307,312.[2]　,..,2001,27(4):84-87.[3]　..,1998,14(2).[4]　..,1998,14(2).　　100875　413　(010)58800150E-mail　[e-mail]2006-11-30李少林　马鲁铭　魏宏斌(,200092)　在中试规模上研究了采用“催化铁+AO生化”及“AO生化催化铁内循环”工艺处理高有机浓度精细化工区污水的效果及特点。实验证明,催化铁作为生化预处理工艺处理此污水铁填料表面出现结垢及有机物黏附的现象。生化催化铁内循环工艺对污水CODCr、NH3-N去除率分别为73%、19%,生化催化铁出水投加少量混凝剂、助凝剂后,C0DCr、BOD5、色度去除率分别为81%、95%、91%;生化催化铁内循环工艺将催化铁置于生化后可有效提高催化铁反应效率,避免铁填料表面出现结垢及黏附层等现象,内循环可保证催化铁对生化的促进及对水中部分难降解有机物的去除,但此工艺仍存在氨氮去除效果不佳等问题待解决。　催化铁　高有机浓度精细化工区污水　生化催化铁内循环工艺0　,、CODCr。,、,。[1,2],,,,。1　,、、。,、、,,CODCr、、,1,(1),CODCr、70%、50%,。“++AO”,,,CODCr20%,。1,BOD5422mgL,BC0.33。2m3,,,。15　　　20078254THERESEARCHONDESIGNOFAORPROCESSGaoJunfa　GaoXiae(7)………………………………Abstract　AORisanewbiochemicalprocessthatcombineswithtraditional-activatedsludgeprocessandoxidationditch.Ithasbetterfunctionofnitrogenandphosphorusremovals,anditsuniquedesignofsludgerenewalregion,makesthereturnsludgecentralizedwithappropriateoxygenation,meanwhileeachregioncanengenderflowstatewithconcentriccirclesadopted.Accordingly,itisasortofwatertechnologywithhighefficiency,energysavingandbetteraccommodation.AfterthestudyofAORprocess,thedynamicdesignmeetingbiologicalphosphorusandnitrogenremovalisproposed,andtheformulasusedtodesignandcalculatearededuced.Keywords　AOR,biologicaldenitrificationanddesign&calculationTHEDESIGNANDOPERATIONOFADVANCEDTREATMENTANDREUSEOFSECONDARYEFFLUENTOFCITYSEWAGEDISPOSALPLANTWangRongbin　WangCuiping　XingYietal(10)……………………………………………………………………………………………………………………………………………Abstract　Reusingmunicipalsewageascirculatingcoolingwaterinindustryhasbecomeoneofthemostlyschemestoresolvetheshortageofwaterallovertheworld.However,thequalityofsecondaryeffluentcannotmeetthestandardofcirculatingcoolingwateraboutCODCr,hardness,nitrogenandphosphor,anditmaybereusedbyadvancedtreatment.Abio-contactoxidation-flocculationsedimentation-mixingclarification-continuousdynamicfilter-disinfectionprocesshasbeenadoptedinthisproject,andtheeffluenthasbeenusedasmake-upwatertocirculatingcoolingsysteminanelectricpowerplant.Thepracticaloperationresultshowsthattheprocesshashighefficiencyandalittleenergyconsumption.Thequalityofeffluentmeetsthemake-upwaterqualitystandardofindustrialcirculatingcoolingwater.Bytheimprovementonprocess,theoperationismoresimple,andtherunningoftheequipmentismorestable.Keywords　reuse,circulatingcoolingwater,continuousdynamicfilterandsludgedewateringbedAPPLICATIONOFHIGH-EFFICIENCYCLARIFIERINREFORMOFWASTEWATERTREATMENTPROJECTLiuJianbin　ChuShangye　FanFeietal(13)………………………………………………Abstract　ThecurrentsituationofthewastewatertreatmentsystemforDandongChemicalFiberStockCompanyisintroducedandtheexistingprocesscannotmeettheactualneeds,sothewastewatertreatmentsystemshouldbereformed.Thehigh-efficiencyclarifierisusedinsteadoftheoriginalmechanicstirringclarifier,whichimprovesthemixedreactionefficiencythustheprocessofwastewatercapacityandwastewaterquality.Itisprovedthatthehigh-efficiencyclarifierisapplicabletochemicalfiberwastewatertreatment.Keywords　mechanicstirringclarifier,high-efficiencyclarifierandreformTREATMENTOFSEWAGEFROMFINECHEMISTRYZONEVIABIO-TREATMENT-CATALYTICIRONINNER-CYCLEPROCESSLiShaolin　MaLuming　WeiHongbin(15)………………………………………Abstract　Pilotexperimentswereconductedonthetreatmentofhighconcentrationorganicsewagefromfinechemistryzoneviacatalyticiron+AObio-treatmetandAObio-treatment-catalyticironinner-cycleprocesses.Theexperimentsindicatedthat:scaleformedonthesurfaceofironandorganiclayeradheredonthesurfaceofscalewhencatalyticironwastreatedasbiologicalpretreatment.AObio-treatmentcatalyticironinner-cycleprocesshasremovalefficienciesof73%and19%forCODCrandNH3-Nrespectively,andCODCr,BOD5,colorremovalefficienciesreached81%,95%,91%respectivelyaftertheadditionsofcoagulantandflocculants;theplacementofcatalyticironfollowedbio-treatmentimprovedtheremovalefficiencyofcatalyticiron,andtheformationsofscaleandorganiclayerwereinhibited;thepromotiontobio-treatmentandthereductionofcatalyticironwasrealizedbytheinner-cycleprocess,butsomeproblemssuchasinefficiencyofNH3-Nremovalremainstobesettledinthisprocess.Keywords　catalyticiron,highconcentrationorganicsewagefromfinechemistry