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当前位置:首页 > 商业/管理/HR > 项目/工程管理 > pH值对硫酸盐还原菌颗粒污泥性能的影响许雅玲
INDUSTRIALWATER&WASTEWATERVol.41No.1Feb.,2010pH,(,510006),,。(SRB)、,,,,[1]。SRB,[2]、、、、。pH,,pH,pH,。pHSRB,pHSRB、、Cu2+。11.1250mLCSTR(),,1。:2009-08-10;:2009-09-16:pH(SRB)。COD4000mg/L,pH7,412.2mL/(g·d);pH6~8,COD83.2%~90.5%,;pH7,,SO42-91.8%;pH6~8,SRBCu2+,91.6%。:;;pH:X703;X172:A:%1009-2455(2010)01-0032-04EffectofpHvalueonperformanceofsulfate-reducingbacteriagranularsludgeXUYa-ling,WUJian-dong(KeyLaboratoryofPollutionControlandEcologicalRestorationinIndustryProcessingAssemblyZone,CollegeofEnvironmentalScienceandEngineering,SouthChinaUniversityofTechnology,Guangzhou510006,China)Abstract:TheeffectofpHvalueonperformanceofsulfate-reducingbacteria(SRB)granularsludgewasstudiedthroughintermittentexperiment.Theresultsshowedthat,whenthemassconcentrationofCODwas4000mg/L,thepHvaluewas7,thespecificmethanogenicactivityreached412.2mL/(g·d);whenthepHvaluewas6-8,theremovalrateofCODreached83.2%-90.5%andtheactivityofthemethanogenicbacteriawashigh;whenthepHvaluewas7,thesulfate-reducingbacteriaactivityreachedthehighestandthemaximumSO42-removalratewas91.8%;thebestperformanceofsulfate-reducingbacteriagranularsludgeonCu2+removalwasobtainedatpHvalueof6-8,theremovalratewasabove91.6%.Keywords:sulfate-reducingbacteria;granularsludge;pHvalue·32·NaOH,CO2H2S。1.2Na2SO4、、NH4Cl、KH2PO4CuCl2·2H2O(),COD、N、P200∶5∶1,COD4000mg/L,CODSO42-2,Cu2+4.0mg/L。(Co、B、Ni、Fe、Zn、MgMn),SRB。1。1.312。,3,5min(4000r/min),SRB,m(VSS)/m(SS)0.85。SRB2、3。2SRB,,2~5mm。、、、,,。1.4SRB((35±1)℃,100r/min),25mL,2mol/LNaOH,CO2H2S,CH4。25mLSRB,100mL,pH3、4、5、6、7、8、9。8hCOD、SO42-、S2-、Cu2+、pH。1.5COD;VSS()[3];pHpH;SO42-;S2-;Cu2+;[4]。22.1pH(SMA),。pHSRB4。4,pH7.0,SMA412.2mL/(g·d),43mL/h(12.9mL/h);pH9.0,7.5mL/h,。1Tab.1Ingredientsoftraceelements/(g·L-1)/(g·L-1)MgSO4·7H2O0.55MnCl2·4H2O0.99EDTA5H3BO40.014CaCl2·2H2O0.33ZnSO4·7H2O0.43FeSO4·7H2O5(NH4)6Mo7O24·4H2O0.09NiCl2·6H2O0.19CoCl2·6H2O0.24,:pH·33·INDUSTRIALWATER&WASTEWATERVol.41No.1Feb.,2010,SRBH2S,H2S[5],pHH2S,;,H2SpH,,H2S,R.E.[6]。,pH7.0,pH(pH>8.0)(pH<6.0),,。2.2pHSRBpHpH,;,,,,ATP。pH。,pH,pH5.0~8.5,pH6.5~7.0,,,pH5.0。pH。pH5。5,pH3.0,37.6%,pH,pH7.0,,pH,。pHH2S(HS-+H2S)。pH7.0,H2S,,pH,(pH6.0~8.0),pH,H2S,COD83.2%~90.5%,。2.3pHSRBSO42-SRBSO42-SRB,SRB,H2S,。pH,SRBSO42-6。pH,(DS,HS-S2-),pH7.0,SO42-,91.8%,SO42-。,pH>7.0,SO42-DS,pHDS,,pHH2S[6],DS。pH6.0,90%H2S;pH7.0,50%H2S;·34·pH8.0,HS-[7]。,pH>7.0,,SRB,,。SRBpH,pH<6.0,SRBpH,。Renze[8],pH6.8~7.2,,pH6.6。SO42-pH,。pH,H2SHS-,HS-,H2S。,pH7.0,SRB,。2.4pHSRBCu2+pHSRBCu2+,7。pH6.0~8.0,SRBCu2+,91.6%,pH,,Cu2+;pH3.056.2%。SRB,SRB,、、Cu2+、;,SRBSO42-H2S,H2SCu2+CuS,pHSRBSO42-,H2S,SRBCu2+;,pHCu2+,Cu2+Cu(OH)2。3(1)pH,pH6.0~8.0,COD83.2%~90.5%,pH,pH7.0,412.2mL/(g·d),43mL/h(12.9mL/h)。pH7.0。(2)SRBpH,SRBpH,,SO42-91.8%。(3)SRBSO42-H2SCu2+CuSCu2+,pH6.0~8.0,Cu2+,91.6%。:[1]LaHJ,KimKH,QuanZX,etal.Enhancementofsulfatereduc-tionactivityusinggranularsludgeinanaerobictreatmentofacidminedrainage[J].BiotechnologyLetters,2003,25(6):503-508.[2],.[J].,2007,38(1):17-20.[3],.[M].:,2004.329-330.[4].[M].:,1998.538-543.[5]ZWKooter,ARinzema,ALdeVegt,etal.SulfideInhibitionofthemethanogenicactivityofgranularsludgeatviriouspH-Levels[J].WatRes,1986,20(12):1561-1567.[6]RE.[M](,).:,2001.319-321.[7],,.[J].,2007,23(5):398-400.[8]RenzeT,VanHouten,LettingaG.Anovelreactordesignforbiologicalsulphateremoval[R].Sendai:Proc8thInternationalConfonAnaerobicDesign,1997.:(1983-),,,,,()yaling_xu@yahoo.cn;(1964-),,,,,()jdwu@scut.edu.cn。,:pH·35·
本文标题:pH值对硫酸盐还原菌颗粒污泥性能的影响许雅玲
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