化学生物絮凝工艺对溶解性有机物的去除特性张志斌

张志斌,　夏四清,　赵建夫(同济大学污染控制与资源化研究国家重点实验室,上海200092)　　　:　研究了化学生物絮凝工艺对溶解性有机物的去除效果及其分子质量分布的变化特征,并分别与化学强化一级工艺、初沉池和二级生物处理工艺的出水进行对比。试验结果显示:化学生物絮凝工艺对分子质量2ku的有机物去除效果明显;对溶解性有机物和UV260的去除率分别为45.9%和38.7%,与城市污水二级生物处理工艺相比,其去除溶解性有机物的能力较弱;对溶解性有机物的去除是通过化学和生物作用共同实现的,其中生物作用主要表现为生物吸附作用。　　:　化学生物絮凝工艺;　溶解性有机物;　分子质量分布;　生物吸附:X703.1　　:A　　:1000-4602(2006)03-0032-04RemovalofDissolvedOrganicMatterbyChemical-BiologicalFlocculationProcessZHANGZhi-bin,　XIASi-qing,　ZHAOJian-fu(StateKeyLab.ofPollutionControlandResourceReuse,TongjiUniv.,Shanghai200092,China)　　Abstract:　Astudywasmadeonthecharacteristicsofthemolecularweightdistributionandthere-movalofthedissolvedorganicmatterintheChemical-BiologicalFlocculationProcess(CBFP).Chemi-callyenhancedprimarytreatmentprocess,primarysedimentationtankprocessandsecondarytreatmentprocessweretakenastheparallel-comparedwastewatertreatmentprocesses.TheexperimentalresultsshowthattheremovalratesofthedissolvedorganicmatterandUV260are45.9%and38.7%respective-ly,andtheorganicswithmolecularweightmorethan2kuaresignificantlyreducedinCBFP.Comparedwiththebiologicalsecondarytreatmentprocess,CBFPhasweakercapabilityinremovingthedissolvedor-ganicmatter.Thedissolvedorganicmatterisremovedthroughchemicalflocculationandbiologicalad-sorptioninCBFP.　　Keywords:　chemical-biologicalflocculationprocess;　dissolvedorganicmatter;　molecularweightdistribution;　biologicaladsorption　　:(863)(2002AA601320);　(20050247016)　　(CBF),,。,,,、。1　试验工艺与方法1.1　,32第22卷　第3期2006年2月　　　　　　　　　　　　中国给水排水CHINAWATERWASTEWATER　　　　　　　　　　　　　Vo.l22No.3Feb.20061。1　Fig.1　Flowchartofpilot-scaleexperiment,60s,0.03m3,0.55m;1.2m3,35min,0.55m,,G,;1.5h,1.2m,()。0.55m,1.2m3,,,。,5×104m3/d,2.0～2.5h,5～6h,。1.2　,100m3/d。33%,DO1.9～3.2、1.3～2.50.3～1.5mg/L。PAFC(Al2O3:10.8%,Fe2O3:1.8%)PAM,PAFC,;PAM。21.6～25.5℃,pH6.79～7.73。、、、(1#、2#、3#、4#5#),0.45μm,SCM-3002,TOCUV260。3,。2　Fig.2　Serialfractionationprotocol1.3　TOCTOC-VCPN,UV260UV-1700。2　试验结果与讨论2.1　TOCTOC3。3　TOCFig.3　ResultsofdissolvedTOCremoval3,TOC15.42mg/L,4.92mg/L,68.1%,TOC。,。TOC,,23.8%TOC。Josepha,20ku,。,,TOC45.9%。,,,33第3期张志斌,等:化学生物絮凝工艺对溶解性有机物的去除特性第22卷。2.2　UV260,1#～5#UV2600.1992、0.1221、0.1555、0.16260.0963cm-1,、、UV26018.4%、21.9%、38.7%51.7%。UV260,TOC,,。2.3　TOCTOC1。1　TOCTab.1　MolecularweightdistributionsofdissolvedTOCmgL-1/ku22～66～2020～5050～1001001#5.612.872.521.331.032.062#4.291.650.960.690.150.613#4.913.161.271.360.100.954#5.032.802.591.041.091.675#3.520.350.240.440.080.30　　1,,。6ku,6ku68.5%。,6ku,,6ku71.1%,2～6kuTOC42.5%,51.5%TOC2ku。,,71.6%2ku,C.P.Les-lie、Crozes[1、2],Jo-sepha。C.P.Leslie,1ku,Josepha,20ku61%,。2.4　CBF1、2、32、31L(a、b、d、c、e),1L30min2,4。4　TOCFig.4　MolecularweightdistributionsofdissovedTOCalongCBFreactor,2ku,,,,。4,TOC,。[3],,,,。,,[4]。3　结论6ku,TOCUV26023.8%21.9%。,TOCUV26045.9%38.7%,2～6kuTOC,。(下转第39页)34第3期　　　　　　　　　　　　　　　　　　　中国给水排水　　　　　　　　　　　　　　　　　　第22卷[8]　BortoneG,SaltarelliR,AlonsoV,etal.Biologicalanox-icphosphorusremoval—theDEPHANOXprocess[J].WatSciTech,1996,34(1-2):119-128.[9]　WannerJ,CechJS,KosM.Newprocessdesignforbio-logicalnutrientremoval[J].WatSciTech,1992,25(4-5):445-448.[10]　SormR,BortoneG,SaltarelliR,etal.Phosphateuptakeunderanoxicconditionsandfixed-filmnitrificationinnu-trientremovalactivatedsludgesystem[J].WatRes,1996,30(8):1573-1584.[11]　NgWJ,OngSL,HuJY.Denitrifyingphosphorusre-movalbyanaerobic-anoxicsequencingbatchreactor[J].WatSciTech,2001,43(3):139-146.[12]　,,,.[J].,2004,20(6):16-18.[13]　KubaT,VanLoosdrechtMCM,HeijnenJJ.Phosphor-usandnitrogenremovalwithminimalCODrequirementbyintegrationofdenitrifyinganddephosphatationandni-trificationinatwosludgesystem[J].WatRes,1996,30(10):1702-1710.[14]　SormR,WannerJ,BortoneG,etal.Verificationofan-oxicphosphateuptakeasthemainbiochemicalmecha-nismofthe“Dephanoxprocess”[J].WatSciTech,1997,35(1):87-94.[15]　CarucciA,KühniM,BrunR,etal.Microbialcompeti-tionfortheorganicsubstratesanditsimpactinEBPRsystemsunderconditionsofchangingcarbonfeed[J].WatSciTech,1999,39(2):75-85.:(1975-　),　,　,　,　。:[phone]:[phone]E-mail:[e-mail]:2005-09-27(上接第34页)TOCUV26068.1%51.7%。,,,。:[1]CrozesG,CapdevilleB,MoroA.Gelpermeation:ameanstocharacterizewastewaterandresidualdissolvedorganicmatterineffluents[J].Desalination,1996,106:213-224.[2]　,,,.[J].,2003,19(12):51-53.[3]　,,,.[J].,1999,15(12):12-14.[4]　XiaSQ,WangF,FuYG,etal.Biodiversityanalysisofmicrobialcommunityinthechem-bioflocculationtreat-mentprocess[J].BiotechnologyBioengineering,2005,89(6):656-659.:(1975-　),　,　,　,　。:[phone]E-mail:[e-mail]:2005-09-13加大污水处理和回用力度　推进污水资源化39第3期李相昆,等:反硝化聚磷菌的脱氮除磷特性研究第22卷