含甲醇化工废水污泥膨胀的影响因素和控制研究

第1卷第4期2001年11月浙江树人大学学报JOURNALOFZHEJIANGSHURENUNIVERSITYVol.1,No.4Nov.2001:2001-09-29:(1972-),,,,;(1970-),,,.陈雪松1季文标2(1.浙江树人大学轻工与环保学院,浙江杭州310015;2.浙江省冶金环保研究所,浙江杭州310012):本试验探讨了含甲醇化工废水污泥膨胀的原因和控制对策不同有机负荷(0.22kg-COD/(kgMLSS#d)0.35kgCOD/(kgMLSS#d))和pH水平(6.2,7.5)对污泥膨胀的影响试验表明,过低的有机负荷(0.22kgCOD/(kgMLSS#d))是引起污泥膨胀的主要因素,而低pH水平(6.2)加剧了低负荷下污泥膨胀的发生通过控制SBR工艺条件(有机负荷0.35kgCOD/(kgMLSS#d)左右,pH大于7.5)可以有效控制污泥膨胀;通过投加70mg/L的Ca(ClO)2可明显缩短控制污泥膨胀的周期,CODCr去除率从55%恢复到90%以上:污泥膨胀;污泥负荷;SBR;Ca(ClO)2:X783:A:1671-2714(2001)04-0061-040,(SVI)SVI200mL/g,,,95%30[1],,,;,,,,,,,pH[2],,SBR,,:yyyyySBRyy200m3/d,150m3/dCODCr3000~4000mg/L,2000mg/L,SBR,SBRSBR1,18hSBR168m3,50m3,1#SBR,SVI400mL/g,CODCr90%55%1SBR(SequencingBatchReactor,)(4,)SBR30L20L,(DKY-OIS)(),11SBR:(SVI)(CODCr)(MLSS)pH22.1pH,1#SBR(30~40m3/d)SBR,0.22~0.25kgCOD/(kgMLSS#d);SBRpH,SBRpH,pHpH:U=Q@S0X@V:U)))[kgCOD/(kgMLSS#d)]Q)))(L/d),SBR,V)))(L)S0)))(COD)(mg/L)X)))(mg/L),MLSS2#SBR,,CODCr2000mg/L4SBRSBR,1,6L,(MLSS)3500mg/L,,18h12h,0.22kgCOD/(kgMLSS#d)0.35kgCOD/(kgMLSS#d),pH6.27.5pHSBRSVI22pHSVI2,U0.22kgCOD/(kgMLSS#d),pH6.2,62浙江树人大学学报2001年4SVI,3,SVI150mL/g326mL/g,8,SVI340mL/g,U0.22kgCOD/(kgMLSS#d),pH7.5,4SVI,8,SVI285mL/g,pH6.2,SVIU0.35kgCOD/(kgMLSS#d),pH6.2pH7.5,8SVI,,,pH0.35kgCOD/(kgMLSS#d),pHChudoba,,[3]2.22.2.1,,[Ca(ClO)2],Ca(ClO)24SBR,1#SBR,20L,SBR1,6L,12h,0.35kgCOD/(kgMLSS#d),pH7.50.8g1.2g1.6g2.0g,SVICODCr,11Ca(ClO)2SVICODcrCa(ClO)2(mg/L)406080100SVI(mL/g)380306285204CODcr(%)545855321,Ca(ClO)240mg/LSBR(SVI);60mg/LSBRSVI,395mL/g306mL/g,;80mg/LSBRSVI,395mL/g285mL/g,;100mg/LSBRSVI204mL/g,40~80mg/L,CODCr,Ca(ClO)2100mg/L,Ca(ClO)2,,CODCr,Ca(ClO)260~80mg/L,,SVI,,,CODCr2.2.2,,SBR0.35kgCOD/(kgMLSS#d),pH7.0,1.4gCa(ClO)27,Ca(ClO)270mg/LSVI3CODCr4,Ca(ClO)2,,0.35kgCOD/(kgMLSS#d),pH7.0,,,22SVI392mL/g124mL/g,SVI63第4期陈雪松,季文标:含甲醇化工废水污泥膨胀的影响因素和控制研究3Ca(ClO)24CODCr110mL/g,,CODCr6,725CODCr,CODCr60.0%91.5%,590%,CODCr150mg/L,Ca(ClO)2,SVI,9,SVI130mL/g,,10SVI110mL/g,,CODCr55%90%,CODCr150mg/LCa(ClO)2,Ca(ClO)2,CODCrCa(ClO)2,,10SVI,34,,3,:¥(0.22kgCOD/(kgMLSS#d)),pH0.35kgCOD/(kgMLSS#d),pH¦Ca(ClO)260~80mg/L,,SVI,,,CODCr§(0.35kg-COD/(kgMLSS#d),pH7.0),30,SVI400ml/g110mL/g,,CODCr55%90.0%Ca(ClO)2,10SVI,:[1]JiriWanner.TheImplementationofBulkingControlintheDesignofActivatedSludgeSystems,Wat.Sci.Tech.,1994,29(7).[2].[J].,1999.7(1).88-93.[3]ChudobaJ,BlahaJ,MaderaV.Controlofactivatedsludgefilamentousbulking)))Ó.Effectofsludgeloading[J].WatRes,1974,8(3):231-237.(下转第70页)64浙江树人大学学报2001年NO-2,,11(ugL-1)(LgL-1)RSD(%)40.22,45.67,45.6742.67,43.22,45.1143.764.8975.78,80.22,75.7875.78,70.33,75.7875.614.15:[1].--[J],,1998,17(3):73.[2].[J],,1997,25(7):814.[3].NO-2[J],),2000,36(11):504.CatalyticAbsorptionSpectrumDeterminationofNO-2BasedontheOxidationofNaphtholGreenBbyPotassiumBromateSUNGuo-liang,CHENJin-yuan(VocationalandTechnicalCollegeofZhejiangUniversityofTechnologyHangzhou,310014)ABSTRACT:Acatalyticabsorptionspectrummethodisproposedfordeterminingnitrous.Themethodisbasedonthecatalyt-iceffectofnitriteionontheoxidationreactionofnaphtholgreenBinadilutemedium.LinearcalibrationcurvesareobtainedforNO-2from4to14ug/[e-mail]1.3@10-3ug#m1-1.ThemethodhasbeenusedindeterminingNO-2intapwaterandcanalwa-terwithsatisfactoryresults.Keywords:nitrite;catalyticspectrophotometer;naphtholgreenB(上接第64页)TheInducingFactorsofandControllingMeasuresforSludgeBulkinginMethanolWastewaterCHENXue-song1,JIWen-biao2(1.LightIndustryandEnvironmentalProtectionCollegeofZhejiangShurenUniversity,Hangzhou,310015;2.ZhejiangProvincialResearchInstituteofMetallurgyandEnvironmentalProtection)Abstract:Theinducingfactorsofandcontrollingmeasuresforsludgebulkinginmethanolwastewaterwereresearchedbyex-perimentswithtwodifferentsludgeloads(0.22kgCOD/kgMLSS#d;0.35kgCOD/kgMLSS#d)andtwodifferentpH(6.2;7.5)conditions.Theexperimentalresultsshowthatbulkingoccurswhenlowsludgeloadingismaintainedandbulkingaggra-vateswhenpHislower(6.2).WhenSBRoperationalconditionischanged(loadingatabout3.5kgCOD/kgMLSS#dandpHover7.5),bulkingwillbecontrolled.However,if70mg/LCa(CIO)2isaddedinSBRreactor,thecontrolperiodisshort-enedevidentlyandthedegradationrateoforganismrisesagain.Keywords:sludgebulking;sludgeloading;SBR;Ca(CIO)270浙江树人大学学报2001年