ABR处理低浓度有机废水的启动方式研究沈桢

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ABR沈 桢1, 沈耀良2, 林玉杰2, 王惠民1(1.河海大学环境科学与工程学院,江苏南京210098;2.苏州科技学院江苏省环境科学与工程重点实验室,江苏苏州215011)   : 对ABR处理低浓度有机废水的启动方式进行了试验研究。结果表明:固定HRT、逐步提高进水COD浓度的启动方式,可使ABR反应器于90d内完成启动,其对COD的去除率达到80%,系统运行较稳定,但污泥颗粒比较松散;而固定进水COD浓度、缩短HRT的启动方式,49d就可使ABR对COD的去除率达到80%,且污泥颗粒化程度较高。  : 厌氧折流板反应器; 低浓度有机废水; 启动; 污泥颗粒化:X703  :C  :1000-4602(2009)01-0101-04Start-upModeofAnaerobicBaffledReactorforTreatmentofLow-strengthOrganicWastewaterSHENZhen1, SHENYao-liang2, LINYu-jie2, WANGHui-min1(1.SchoolofEnvironmentalScienceandEngineering,HohaiUniversity,Nanjing210098,China;2.JiangsuProvincialKeyLabofEnvironmentalScienceandEngineering,SuzhouUniversityofScienceandTechnology,Suzhou215011,China)  Abstract: Theeffectofthestart-upmodeoftheanaerobicbaffledreactor(ABR)onthetreatmentoflow-strengthorganicwastewaterwasstudied.Theresultsshowthatittakes90daystocompletethestart-upwhentheinfluentCODconcentrationisgraduallyincreased,andthehydraulicretentiontime(HRT)iskeptconstant.TheremovalrateofCODis80%,andthesystemoperatesstably,butthestructureofthegranularsludgeisloose.Ontheotherhand,whentheCODconcentrationiskeptconstantandHRTisgraduallyreduced,ittakesonly49daystoreach80%CODremoval,andthegranulationde-greeofsludgeisalsohigher.  Keywords: anaerobicbaffledreactor(ABR); low-strengthwastewater; start-up; sludgegranulation  :(06KJA61020)  ,[1、2]。,(ABR)、[3~5],ABR,。ABR、。1 试验部分1.1 6、ABR(R1R2)。,15L,·101·第25卷 第1期2009年1月            中国给水排水CHINAWATERWASTEWATER             Vol.25No.1Jan.20091∶8。,,(35±0.5)℃。1。1 Fig.1 SchematicdiagramofABR1.2 ,[6]。1。,2d,1/2,16gVSS/L,VSS/TSS0.68。1 Tab.1 WastewaterqualityCOD/(mg·L-1)BOD5/(mg·L-1)BOD5/CODNH+4-N/(mg·L-1)TP/(mg·L-1)pH/(mgCaCO3·L-1)182~43096~3000.5~0.7215~421.0~4.26.5~8.0200~350  0.8kg/(m3·d),(OLR)。:R1,HRT(10h)、;R2,COD(500mg/L)、HRT。2。2 Tab.2 ControlparameterforABRrunning/dHRT/hCOD/(mg·L-1)OLR/(kg·m-3·d-1)R11~28103300.828~60105001.261~130107501.8R21~28155000.828~60105001.261~1306.55001.81.3 ,COD、(VFA)、pH、,,。2 结果与分析2.1 ,2。2 CODFig.2 VariationofCODremovalratewithtime2,R113d,COD65%;R215d,COD75%。29,COD。R1,COD50%,(1d),COD70%。,,R1COD75%,R2COD80%。61,COD,R1COD80%;R2,,70%。VFApH,VFA1.5mmol/L,。pH6.6~7.0,pH7.0~7.5,。,R1,,90dCOD80%,。R2·102·第25卷 第1期              中国给水排水            。,R2R1,R2HRT,,,。R2(HRT10h6.5h,0.18m/h0.27m/h),,,COD100mg/L150mg/L,COD80%70%。R23。3 R2Fig.3 VariationoftotalsludgequantityinR2reactor3,HRT6.5h,(1#、2#),。R21#2#,,;,。,,,,,R2。2.2 、、、,,。StuckeyABR,ABR。,ABR,。80d,R11#,,,;R21#0.64~1.42mm30%,R1,,。130d,R11#0.64mm65%,1.42mm28%;R21#0.64mm83%,1.42mm21%。2#:R10.64mm35%;R20.64mm45%。,,70%~80%。4、5。4 130dR1Fig.4 DiameterofgranularsludgeinR1reactoron130thday5 130dR2Fig.5 DiameterofgranularsludgeinR2reactoron130thday,1#2#,·103·沈 桢,等:ABR处理低浓度有机废水的启动方式研究第25卷 第1期,1#、2#,,。R2HRT,;,,;500mg/L,。R2R1,R1。,R2,,,;R1,,。,R1,,;R2,,,。,R2R1。R21#2#R1,,,。3 结论① ,HRT、CODABR,,,;COD、HRT,,,HRT。② ABR,、HRT,。,HRT,,。,,。,HRT,。HRT,。③ HRT,,。,HRT=15hCOD=500mg/L、HRT=10hCOD=500mg/L、HRT=10hCOD=750mg/LABR。,,,。HRT,,,,。:[1] LettingaG,FieldJ,VanJ.Advancedanaerobicwastewatertreatmentinthenearfuture[J].WaterSciTechnol,1997,35(10):5-12.[2] ,,,.[J].,2002,3(8):63-66.[3] BarberWP,StuckeyDC.Theuseofanaerobicbaffledreactor(ABR)forwastewatertreatment:Areview[J].WaterRes,1999,33(7):1559-1578.[4] ,,.(ABR)[J].,2000,6(5):490-498.[5] .[J].(),2003,16(2):9-18.[6] .[M].:,1998.:13770513498E-mail:xuhang810826@sina.com::2008-05-13·104·第25卷 第1期              中国给水排水            

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