废纸造纸废水厌氧处理中降低反应器颗粒污泥钙化的研究薛方勤

··。113141121.1000842.1000843.2142134.215131、ICEGSB、、。10t。。X793A0254-508X201502-0019-062014-10-03“”2012ZX07101—003。StudyonＲeducingCalcificationＲiskofAnaerobicGranularSludgeinWasteWaterTreatmentinaＲecycledPapermillXUEFang-qin1*SUNZhen-liang13QIANMing14FUHong-xiang1ZHAOXue-feng121.BeijingGuohuanTsinghuaEnvironmentEngineeringDesignandＲesearchInstituteCo．Ltd．Beijing1000842.SchoolofEnvironmentalofTsinghuaUniversityBeijing1000843.WuxiFengluEnvironmentalScienceCo．Ltd．WuxiJiangsuProvince2142134.SuzhouQingzeEnvironmentalScienceCo．Ltd．SuzhouJiangsuProvince215131*[e-mail]marysedirmentationanaerobictreatmentICandUASBaerobictreatmentandchemicalcoagulationwasusedforeffluenttreatmentinarecycledpapermillinJiangsuProvince．Waterconsumptionofthemillisbelow10t/tproductduetoitswhitewaterisrecyclinginaratherclosurecirculation．Thehighcontentofcalciumfromtherawmaterialledtohighcalciumionconcentrationinthewastewater．Thereforethecalcificationofanaerobicgranularsludgewasseriousinthismill．Inthispaperamoderatereductionofhardnessmethodofwastewaterwasadoptedtoreducethehazardofcalcificationofanaerobicgranularsludge．Furthermoretheanaerobicprocesswouldbeoperatedstablyandthecostofreplacementofgranularsludgewouldbereduced．KeywordswastepaperpapermakingwhitewaterclosedcirculationgranularsludgecalcificationremovehardnessICEGSB、、。Ca2+。70t、ICUASB1、、15000～20000t。10tCaCO3·91·《》2015342Ca2+IC。IC。Ca2+1Ca2+IC1100～1500mg/L、Ca2+。Ca2+6%48%6%Ca2+Ca2+。2-13CaCO3CaS、CaSO4Ca2+、pH。pHCa2+SSCOD。11.11。11.20.3m3/h→→→→UASB。HＲT6h2h6h4hUASB50%。22.1ICpH、、、CODCr、VFA1。、CaCO3mg/L。1ICCODCr4053mg/L1583mg/L60.9%25%1Ca2+CaCO3CaSCaSO4。1ICpH/mg·L-1CODCr/mg·L－1VFA/mmol·L－1/mg·L－1pH/mg·L－1CODCr/mg·L－1VFA/mmol·L－1/mg·L－115.9750407027.522006.7175017008.0150026.1500360027.224006.8190016006.0180034.8165430030.522006.8185020005.5180046.1345340025.520006.7160014006.0150055.817544003623006.9190012003.5180065.617545503120006.81900160010.014005.7350405329.621836.8180015836.51633·02·ChinaPulp＆PaperVol.34No.220153。EGSB50%。1COD0.5～0.8kg2。2.223。2CODCr/mg·L－1pH/mg·L－1/mg·L－135006.5180040035006.6180050014006.8140015003CODCr/mg·L－1pH/mg·L－1/mg·L－135006.0165040028806.7118085024507.111009006607.1940180023①pH6.71180mg/L400mg/L850mg/L②pH7.01500mg/L1800mg/L③COD。2.32。21830mg/L1400mg/L20%Ca2+3.1kgIC2183mg/L1633mg/LCa2+Ca2+。21076mg/L940mg/L0.8kg25%Ca2+。14-15Ca2+Ca2+Ca2+800～1000mg/LCa2+250mg/LCa2+800mg/LCa2+。1000mg/L·12·《》2015342Ca2+。2.4CODCrVFA34CODCrVFA。3。CODCr30%～70%55%CODCr70%74.6%Ca2+CODCrCODCr20%。3CODCr4VFA4VFA3VFA65%VFAVFA75%～90%VFA。2.5CaSCaSO4IC4。LSIpHpHpHsLSI＞0LSI＜0LSI0。pHs1。pHs=9.3+A+B－C+D19.3A、B、C、DTDS、、。A=lgTDS-1/10TDSTDSTDSlgTDS=1.006lgK－0.21516KB=－13.12×lgt+273.15+34.55C=lgCa2+CaCO3－0.4D=lgCaCO3。5ICpH、。5。CaCO3·22·ChinaPulp＆PaperVol.34No.220154IC/℃4040－pH6.5～6.87↑/μS·cm－12500～30003000～3200↑/mg·L－11800～2100800～1000↓/mg·L－118001800－5ICpH6.87/℃4040/mg·L－118001800/mg·L－12100800/μS·cm－130003200TDS/mg·L－119192047A0.330.33B1.811.81C2.922.50D3.263.26pHpHs5.275.68LSI=pH－pHs1.541.32LSI。SO2－4CaCO3CaSO4Ca2+。3Na2CO33Na2CO3pHpHCa2+Ca2+。Na2CO3500～800mg/L800～1000mg/LCaCO3ICpH。1WANGJiang-quan．TreatmentsofcitricacideffluentcontainingrichCa2+J．JiangsuEnvironmentalSci-enceandTechnology200114316．．J．200114316．2CHENZhi-qiang．ApplicationofIC-reactorinPaperMillWastewaterTreatmentJ．ChinaPulp＆Paper200423337．．ICJ．200423337．3JIANGJian-xiangCIXin-boWANXian-kaietal．StudyontheapplicationofICprocesstothetreatmentofregeneratedpapermakingwastewaterJ．IndustrialWaterTreatment2010301189．．J．2010301189．4JIANGHanWANGKai-junSHIXian-kuietal．AnewdiscoveryofanaerobicsludgegranularwithbigaeramineralscoreJ．ActaMicrobiologicSinica2005456925．．—J．2005456925．5YANGShu-chengHEYan-lingZHANGPeng-xiangetal．Calci-umCarbonatePrecipitationinUASBＲeactorswithDifferentSub-stratesJ．EnvironmentalScience2009303822．．UASBJ．2009303822．6CAOGangXUXiang-yangFENGXiao-shan．EffectofAlkalinityonSludgeGranulationinUASBJ．ChinaWater＆WasteWater200218813．．UASBJ．200218813．7CHENLei．ＲemovalofcalciumincitricacidwastewaterJ．Sci-enceandTechnologyInformation2010824731．．J．2010824731．8LIANGJi-dongHEYan-lingWANGGuo-dongetal．InvestigationofDCSintheＲecyclingWaterofaＲecycledFiberMillJ．ChinaPulp＆Paper20113056．．DCSJ．20113056．9YuHQTayJHFangHP．Therolesofcalciuminsludgegranula-tionduringUASBreactorstart-upJ．WaterＲesearch200135·32·《》201534241052．10Yu-ChuanJuangSunilSAdavDuu-JongLeeetal．Stableaero-bicgranulsforcontinuousflowreactorsprecipitatingcalciumandi-ronsaltsingranularinteriorsJ．BioresourceTechnology201010168051．11AngelaManasMathieuPocquatBeatriceBiscansetal．Parame-tersinfluencingcalciumphosphateprecipitationingranulesludgese-quencingbatchreactorJ．ChemicalEngineeringScience2012772165．12LangrankEAVanGillGGAelstAVanetal．EffectsofhighcalciumconcentrationsonthedevelopmentofmethanogenicsludgeinupflowanaerobicsludgebedUASBreactorsJ．WaterＲesearch19983241255．13GhangrekarMMAsolekarSＲJoshiSG．CharacteristicsofsludgedevelopedunderdifferentloadingconditionsduringUASBreactorstart-upandgranulationJ．WaterＲesearch20053921123．14PevereAGuibaudGVanHullebuschEDetal．Effe