白腐菌厌氧菌好氧菌三段式处理蒸煮黑液工艺研究张晓昱

··--张晓昱　任拥政　章北平　李　亮　冯仁涛　　　造纸蒸煮黑液是高浓度、高碱性的有机废水。由于高碱性和木质素等难降解物质的存在,给蒸煮黑液的处理带来了很大的难度。采用产酸白腐菌株S调节黑液pH,去除与转化木质素,结果pH由8降至3以下,COD由10000mg/L左右降至5000mg/L,显著改善了黑液的可生化性。出水经白腐菌株C调节pH后,利用厌氧菌水解和好氧菌接触氧化工艺进一步处理。研究了各工序进水负荷、停留时间、温度等因素对处理效果的影响,获得了有效处理蒸煮黑液的工艺参数:进水黑液负荷10000mg/L左右,停留时间分别为3d,4h和24h,温度在25～29℃下,连续运行20余天,COD总去除率达91.5%～96.5%。在整个工艺中,发现白腐菌的作用占主导地位,而黑液负荷、温度、pH是影响白腐菌作用的重要因素。　白腐菌　厌氧菌　好氧菌　蒸煮黑液　　pH[1],、、SO2[2][3]。,,,。、。[4],pH[5～6],,[7～8]。,pH,,,。1　1.1　。,(Coriolus.spp.),S,pH(polyporusspp.),C。。0.12%,MgSO40.06%,Na2CO30.06%,(1∶10),pH。1.2　(1)。(100mL/250mL),25℃,150r/min4d,。(2)。S10mL/100mL,25℃,3d。CpH,12h,-,4h,24h。(3)。pH:。COD:COD()。2　、1。3L,1∶10,25～29℃,,,1∶1,;1L,800mL,,,;1L,800mL,38　　　　Vol.29　No.11　2003DOI:10.13789/j.cnki.wwe1964.2003.11.0111234567891011121314pH1　,1,,,。3　3.1　pHCOD,,,,,25～29℃5d,pH2,。3.2　,N、P,COD∶N∶P=350∶5∶1,,,20d,,。3.3　,15d,,1,400mL,24h,30min。5d,COD80%,,。4　:①,pH=12～6.2,,;②,pH=6.2～3.0,;③,pH3,。pH=3,[9]。。,,CO2H2O;pH,,Na+-H+,。pH3,,,COD。pHCpH,,,,,,COD,,,。5　5.1　5.1.1　1∶10,pH6～7,5L,,30min。S(H-S)20%,25～29℃,。CODpH2。2:、,S,pH,,COD。CODpH,COD。,,,。5.1.2　　Vol.29　No.11　200339　　　2　,CpH6～7,,,,,、,COD(3),。3　CODpH5.1.3　。,,COD(4)。4　CODpH5.2　--5.2.1　。5,COD1.3mg/L,pH。6,COD5000mg/L,,COD500mg/L,COD7000mg/L,,COD,,。COD5000mg/L。,COD1.3mg/L,COD,,,COD10000mg/L。5　S6　COD5.2.2　COD10000mg/L,COD,2,3,4。2,3d;3,4,,4h,,COD40　　　　Vol.29　No.11　2003,24h。5.2.3　,7,25℃,,25～29℃。7　pH10℃,COD,SS。COD,SS[10]。,,,。,。,30℃。5.3　--,,,20d,,8COD。pH,,COD5000mg/L。COD8　--,,,,COD600mg/L,COD91.5%～96.5%。6　(1),,。(2)--,COD91.5%～96.5%。COD。(3)COD10000mg/L,3d,CpH12h,4h,24h,25～29℃。参考文献1　,..(),2002,20(1):83～882　,..,1995,16(4):1～23　,,..,2002,22(5):42～444　MesterTǜnde,TienMing.Oxidationmechanismofligninolyticen-zymesinvolvedinthedegradationofenvironmentalpollutants.Inter-nationalBiodeteriorationandBiodegradation,2000,46(1):51～595　Miiamakala,etal.Productionoforganicandoxalatedecarboxylaseinlignin-degradingwhiterotfungi.EnzymeandmicrobialTechnology,2002,30(4):542～5496　BreenAlec,Singleton,etal.FredLFungiinlignocellulosebreak-downandbiopulping.CurrentOpinioninBiotechnology,1999,10(3):252～2587　,,,..,2002,22(9):32～348　,,,..(),2002,30(3):110～1139　,,..,2000,28(1):45～4710,.-.,1999,20(3):75～78:430074　:(027)87541355430074　:2003-8-11　Vol.29　No.11　200341　　　WATER&WASTEWATERENGINEERINGVol.29No.11November2003ABSTRACTSCouplingTransformationsofIron-Manganese-PhosphorousinLowTurbidityDrinkingWaterResourcesYuanWenquanetal(10)……………………………………………………………………………………………………Abstract:ThecouplingtransformationrelationshipsamongFe,MnandPinalowturbidityreservoirwerestudiedbymeansofsite-monitoringanddatacorrelationanalysis.TheresultsindicatethattheconcentrationsofFeandMnandPaswellwillincreaseinalargescalewhenthermoclinelayerandanaerobiclayerformedinthereservoirinsummer.ConcentrationsofFe,MnandTPinthehypolimnionwere12.7,16.3and3.4timesgreaterthanthoseintheepilimnionrespectively.Correla-tionanalysisclearlydemonstratedthatthereareevidentcouplingrelationshipsamountFe,MnandPtransformation.Aconceptmodelofiron,manganeseandphosphoroustransformationinthisreservoirhasbeenestablished.InfluenceFactorsonFeRemovalfromUndergroundWaterinContact-OxidationProcessYuJianetal(15)………………Abstract:TheinfluencefactorsoftheDOlevel,filteringspeedandpHonFeremovalfromundergroundwaterinfiltercontact-oxidationprocessareresearchedexperimentally.TheFeremovalratesatdifferentpHlevelandfilteringdepthareobserved,andtheactivatedcoefficientβofFeremovalatconditionofpH6.55,8m/hfilteringspeedandDO6.5mg/Lhasbeendeduced.Physico-ChemicalExaminationofBio-Degradable(Ss)inActivatedSludgeModelsZhouXuefeietal(23)…………………Abstract:Aphysico-chemistrybasedfastmeasurementtodeterminethebio-degradablecontentofsolubleCODininletrawwastewaterhasbeenadvanced.FlocculentwasadoptedtodetermineSs,bythisway:the0.45μmpenetrat-ingcolloidswereflocculentlysettledandthenfinemembranefiltrated.ThedeterminedSsbyflociscorrelatedtothatbyrespirometry,about1Ss(respiratory)=0.81Ss(floc).Thequalityofthemembranecausestremendousinfluencetothedetermination.Incasewhennohighqualitymembraneobtained,itisproposedtoexaminetheSsbysingleflocculentway.TechnicalDesignandPerformanceofWaterworksforIronandManganeseRemovalbyMicroorganismGaoJieetal(26)……Abstract:Shenyangeconomicdevelopmentzonewaterworksisthefirstlarge-scalebiologicalundergroundwaterFe/Mnremovalfacilityinthiscountry.ByadoptedcascadeweakaerationallthefunctionsrelatedtoFe/Mnremovalsuchasthemicroorganismculturingandmaturing,steadyfilteringandbackwashingareprocessedinthesamefilteringbed.Whenthemicroorganismmaturing,asteadystatestableFe/Mnremovalratioexcess99%hasbeenobtained,whichisbetterthantherequirementofthenationalstandard.DemonstrationProjectofDualMembraneProcessforWastewaterReuseinTianjinLiJianetal(29)………………………Abstract:ThegeneralstatusofwastewaterreuseintheTianjineconomicaldevelopingareaispresentedbriefly.Onthebasisoffeasibilityinvestigationandargumentationthecombinedcontinuousflowprocessofmicro-filtrationandreverseosmosiswasadopted.Inthispapertheprocessfeatureandconstructionofthisprojectaredescribed,especiallythequalityoftheoutletwaterandmulti-purposeofrenovat