HCR工艺处理木薯淀粉废水伍婵翠

26220064JournalofGuilinUniversityofTechnologyVol.26No.2Apr.2006:1006-544X(2006)02-0242-05HCR伍婵翠1,王燕舞2,刘康怀2(1.,　541004;2.,　541004)　:HCR.CODCr、SSBOD510000、18006000mg/L,13.8mg/L.,HCR:SV94%～98%,SVI100mL/g±,ρ(MLSS)7.0～11.0g/L,DO3.0～5.0mg/L,HRT6～10h;HCR25.0～45.5kgCOD/(m3d)20～35℃(),35.0～82.0kgCOD/(m3d)27～33℃().CODCr90%,BOD536mg/L,SS30mg/L,0.5mg/L,《》(GB8978-1996).:;;COD:X792.03　　　　　　　　　　　　　:ACODCr10000mg/L,SS1800mg/L,BOD56000mg/L,,,.40%,.100,“”,、.,,,[1].,、,[2-5].,.11.1,,.,,,,,.,(HCR)[6].、、、COD,[7-9].1.2,HCR.,HCR1.1.1.31.3.1试验用水的来源和分类　.,3,、().,,,　:2005-05-20　:(2003BA901A07);(0235020)　:(1978-),,,.1　[10]Table1　GeneraltestitemsandtestmethodsCODCrBOD5DO、SSpHpHCN-,———,.1.3.2试验用水的水质　2.2　Table2　WastewaterqualityofChongzuocountycassavastarchmillρ(mgL-1)CODCr50011000～1400014000～18000BOD53500100008000SS180050008000CN-*2.84832.16.472:*2:→.,COD,.2,.2.12.1.1　HCR对废水中有机物的去除效果　,HCR29.5L/d,COD,HCR,.(1),HCR:7d,,COD,COD1000mg/L.7d,,HCR45.6kgCOD/(m3d).,,COD,,COD5000mg/L,(4000).,,,.1　HCRCOD、Fig.1　RelationshipofCOD,CODremovalandvolumetricloadingintheeffluentofHCR2.1.2HCR中的微生物生长变化情况　,29.5L/d,COD,,SV()、ρ(MLSS)()、ρ(MLVSS)()、SVI()f(ρ(MLVSS)/ρ(MLSS),)2.COD,SVI195,.,,,,DO,.,,.(8d),,,,,,.45.6kgCOD/(m3d),,,2432　　　　　　　　　　　　:HCR2　CODFig.2　RelationshipbetweenCODintheinfluentandactiveofmicrobesinHCR.SV15%,ρ(MLSS)1.10g/L≈ρ(MLVSS),SVI≈135mL/g,f≈1.0.,,:SV=90%～98%,SVI70～120mL/g,f=0.92～0.95.2.2,,.,29.5L/d,,,,60.5L/d,.2.2.1HCR对废水中有机物的去除效果　(3),HCR,COD95%,COD300mg/L,COD82.1kgCOD/(m3d).,、,.,,.3　HCRCOD、Fig.3　RelationshipofCOD,CODremovalandvolumetricloadingintheeffluentofHCR2.2.2HCR中微生物生长变化情况　,,HCR,,HCR.4a、b,SV94%,,7～12g/L;SVI85～125mL/g,.4　CODFig.4　RelationshipbetweenCODintheinfluentandactiveofmicrobesinHCR244　　　　　　　　　　　　　　　　　　　　　2006,HCRCOD,,f.2.3HCRHCR.,,HCR(SBR),(3).3　SBRTable3　ComparisonoftrentmenteffectbetweenHCRandHCR+SBRHCRHCR+SBRCOD/%809526242.4HCR2.4.1溶解氧(DO)HCR,,HCR.3.0mg/(Lh),,,,;5.0mg/(Lh),,,.,HCR,,3.0～5.0mg/L.2.4.2水力停留时间(HRT)HRTHCR:HRT6h,,,,;HRT10h,,.HCR6.5～10h6～10h.2.4.3pH值HCR.:(1)HCR.,,,,HCR、,,[3].(2)pH.　　　　　NH3+H2O→NH+4+OH-.(1),pH(3.5～7.2),pH,,pH6.5～8.0,.2.4.4温度HCR10～15℃.:HCR,,;HCR,.,20℃.,,(4).3(1)HCR,CODCr90%,BOD536mg/L,SS30mg/L,0.5mg/L[11],16,《》(GB8978-1996)。(2),,HCR45.6kgCOD/(m3d),4　HCRTable4　ParameteroftreatingthefirstseparatedandsecondseparatedwastewaterwithHCR/(kgCODm-3d-1)SV/%SVI/(mLg-1)ρ(MLSS)/(gL-1)ρ(DO)/(mgL-1)HCR/℃HRT/h　25.0～45.590～9570～1209.0～11.03.0～5.020～356.5～10　35.0～82.094～9885～1257.0～11.03.0～5.027～336～102452　　　　　　　　　　　　:HCR82.1kgCOD/(m3d).:5,;,,,,,,.(3)HCR,,,,HCR,.(4)HCR,,,,,[12].(5)HCR、、、、,、.:[1],,.HCR———[J].,2000,26(4):25-29.[2].[J].,1997,18(4):26-27.[3].[J].,2001,20(1):31-32.[4],,,.[J].:,2001,7(2):101-103.[5],.[J].,1992,21(4):40-43.[6],,,.[M].:,2001:29-33.[7],.[J].,2001,21(1):77-80[8],,,.HCR[J].,2002,18(8):46-48.[9].[D].:,2003.[10].()[M].:,1983,8.[11].[D].:,2004.[12].[D].:,2004.ExpermientoftreatingthecassavastarchwastewaterwithHCRprocessWUChan-cui,WANGYan-wu,LIUKang-huai(1.DepartmentofElectronicEngineering,GuilinUniversityofElectronicTechnology,Guilin541004,China;2.DepartmentofResourcesandEnvironmentalEngineering,GuilinUniversityofTechnology,Guilin541004,China)Abstract:TheaerobicbiologictreatmentthatisbasedonHCR(HighPerformanceCompactReactor)wasap-pliedtoremovepollutantsfromthecassavastarchwastewater.ItsCODCr,SSandBOD5washigherthan10000,1800and6000mg/Lrespectively.ThemeancontentofCN-inthewastewaterwas13.8mg/L.Accordingtothecharactersoftheproductionprocessandthewastewater,theoperationparametersofHCRwerechosenasfollows:SV94%～98%,SVI100mL/g±,ρ(MLSS)7.0～11.0g/L,DO3.0～5.0mg/LandHRT6～10h.ThevolumeloadandtheinnertemperatureofHCRwere25.0～45.5kgCOD/(m3d)and20～35℃forthefirststarch-washingwastewater,and35.0～82.0kgCOD/(m3d)and27～33℃forthesecondstarch-washingwastewater.TheaverageCODremovalrateofthetreatmentprocesswashighupto90%.ThemeanBOD5oftheeffluentwasabout36mg/L,anditsSSandCN-concentrationswerelowerthan30mg/Land0.5mg/L,respectively,whichcanmeettheIIseriesdemandofthe“Integratedwastewaterdischargestandard(GB8978-1996)”.Keywords:cassavastarchwastewater;cerobicprocess;CODremovalrate246　　　　　　　　　　　　　　　　　　　　　2006