好氧污泥颗粒化过程的影响因素分析汪善全

:,,1982,,。好氧污泥颗粒化过程的影响因素分析汪善全竺建荣(,100875)　　,。(SVI)、、(MLSS)。:SVIMLSS,,SVI;MLSS;1.3～1.5mm,,SVI,,MLSS。　　Factoranalysisforaerobic-granulationinactivatedsludgeprocess　WangShanquan,ZhuJianrong.(SchoolofEnvi-ronment,BeijingNormalUniversity,Beijing100875)Abstract:　Inthiswork,therelationshipsamongMLSS,settlingvelocity,SVIanddiametersoftheaerobicgran-ule(D)inthereactorcultivatingaerobicgranuleswithgray-systemanalysismethodwasstudied.TheresultsindicatedthattheorderinfluencingsettlingvelocitywasSVIDMLSS,whichilluminatedthattheeffectsofsettlingvelocityontheconversionofconfigurationandgranulationofaerobicsludgewasthemostobvious.Intheprocessofgranula-tion,thesludgebecamedenseandSVIbecamesmaller,whichwasaperfectindexforjudging.AmongSVI,D,MLSS,theeffectofsettlingvelocityonMLSSwastheleast.Theoptimaldiameterofgranuleshouldbeintherangeof1.3～1.5mm,andtheeffectofgranule-diameteronreducingSVIwasmaximal,whichhadimprovedthefurthestsettlinga-bilityofthegranuleandhadreachedthemaximumofthebiomasspervolume.Keywords:　SludgegranulationAerobic-granuleInterferenceanalysisAffectingfactors　　1997(SBR)[1]3191-3194,[1]3192,[2,3]。、[4],。,。,,。,,,。　　,,(SVI)、、(MLSS)。SVI,,,MLSS。,4。(、、)。,,,。,,[5]。,,。,115　DOI:牨牥牨牭牴牳牭牤jcnki牨牥牥牨牫牳牰牭牪牥牥牱牥牪牥牨牥,,。[6,7],。,SVI、、MLSS4,,。,。11.1　灰色关联分析的关联度定义　　,m:　　{X(0)1(K)},K=1,2……m1　　{X(0)2(K)},K=1,2……m2　　{X(0)N(K)},K=1,2……mN　　m1、m2,……mN,,NN,X(0)i(K)(i=1,2,……N),:{X(0)0(K)},K=1,2……m0,X(0)0(K)。r0i∈{0,1},:①r0i,X0Xi;②r0iX0Xi;③X(0)0(K),r0i1;r0iXiX0。1.2灰色关联分析的关联度计算　　。1.2.1　　SVI、、MLSS,,,,,。X(0)i(K)=X(0)i(K)-minKX(0)i(K)maxKX(0)i(K)-minKX(0)i(K)(1):maxKX(0)i(K)Kmi;minKX(0)i(K)Kmi。1.2.2　　,{X(j)0(K)}(j=1,2,……P;K=1,2,……m0);{X(0)i(K)}(i=1,2,……N;K=1,2,……mi)。,:　　ξi(K)=miniminKΔ0i(K)+maximaxKΔ0i(K)Δ0i(K)+maximaxKΔ0i(K)(2):ξi(K)XiX0K;Δ0i(K)=|x0(K)-xi(K)|。1.2.3　　K,,i。,mi,ri。　　ri=1mi∑miK=1ξi(K)　i=1,2,……N(3)　　ri,。2　　　SVI,MLSS,。1。2.1　SVI分析　　SVI,X(0)1(K);X(0)2(K);MLSSX(0)3(K),SVI,2。　　2r01()r02()r03(MLSS),SVI:MLSS,1　Table1　Originalexperimentaldata1[8]2[9]3[10]4[11]5[12]6[13]7[14]SVI/(mLg-1)706563201426.540/(mh-1)16.2303630123632.7/mm1.01.12.41.51.31.377.35MLSS/(gL-1)4.08.65.910.0616.58.07.8116　　29　2　200722　SVITable2　Relative-coefficientandrelative-degreeofSVIξi1234567r0iξ10.5480.8610.8890.6091.0000.5630.7150.741ξ20.5000.5280.6040.9730.9550.8580.6510.724ξ30.5000.6480.5800.7260.5000.9120.8620.675。,。,,,,,。　　SVI,,SVI。,SVI。SVI80～150mL/g。150mL/g。SVI80mL/g,,,。,,,SVI20～30mL/g。SVI15～20mL/g,。SVI。3()SVI[15]。3　SVITable3　SVIofthesludgemixtureversustheproportionofaerobicgranulesinthemixture123456/%02.510.815.024.0100.0SVI/(mLg-1)8063533426182.2沉降速率与MLSS分析　　,SVIX(0)1(K);X(0)2(K);MLSSX(0)3(K),,4。　　MLSS,SVIX(0)1(K);X(0)2(K);X(0)3(K),,5。　　4、5:,r01(SVI)r02()r03(MLSS);MLSS,r02()r01(SVI)r03()。　　MLSS,SVI。、SVI,:,;,。　　SVI、、MLSS,MLSS,MLSS:,,,;,,,。MLSS。,MLSSSVI,MLSS。4　Table4　Relative-coefficientandrelative-degreeofsettlingvelocityξi1234567r0iξ10.5480.8610.8890.6091.0000.5630.7150.741ξ20.8510.5770.5620.5980.9550.5150.8800.705ξ30.8510.7240.5410.7910.5000.5950.6410.6635　MLSSTable5　Relative-coefficientandrelative-degreeofMLSSξi1234567r0iξ10.5000.6480.5800.7260.5000.9120.8620.675ξ21.0000.7400.9360.7110.5120.7920.5900.754ξ30.8510.7240.5410.7910.5000.5950.6410.663117　6　SVI1)Table6　Relationshipbetweengranule-diameterandSVI1234567/mm1.01.11.31.371.52.47.35SVI/(mLg-1)70651426.52063400.5000.5280.9550.8580.9730.6040.651MLSS/(gL-1)4.08.616.58.010.065.97.8　　:1)、SVI、MLSS[8～14]。2.3综合分析　　MLSS、、SVI1。1,,。1,MLSS,SVI,MLSS。1　MLSS、、SVIFig.1　TherelationshipamongMLSS,settlingvelocity,SVIandgranulardiameterinaerobicgranularsludgesystem:1—0.754;2—0.741;3—0.724;4—0.705;5—0.675;6—0.663　　6SVI。　　K,6,(1.3～1.5mm),SVI,,;,SVI(),TSUNEDA[16]。,1.3～1.5mm。　　,。,,。,,、。3　　　(1)SVI:MLSS。。,。　　(2),SVI。SVI。SVI15～20mL/g,,。　　(3)SVI、、MLSS,MLSS,MLSS。　　(4)1.3～1.5mm,SVI,,。[1]　MORGENROTHE,SHERDENT,VANLOOSDRECHTMCM,etal.Aerobicgranularsludgeinasequencingbatchreac-tor[J].Wat.Res.,1997,31(12).[2]　,.[J].,1999,2(20):38-41.[3]　BEUNJJ,VANLOOSDRECHTMCM,HEIJNENJJ.Aer-obicgranulationinasequencingbatchairliftreactor[J].WaterRes.,2002,36:702-712.[4]　ZHUJianrong,LIUChunxin,WILDERERPA.Bio-Premovalprofileofaerobicgranularactivatedsludge(AGAS)fromananaerobic/aerobicSBRsystem[C]//BATHES,DEKREUKMK,MCSWAINBS,etal.AerobicGranularSludge.Munich:IWA,2004:79-86.[5]　.[M].:,1985:348-374.[6]　,.[J].,1993,15(4):62-65.[7]　LIXiaoming,ZENGGuangming,LIUJingjin,etal.Predictionoftheamountofurbanwastesolidsbyapplyingagraytheo-reticalmodel[J].JournalofEnvironmentalSciences,2003,15(1):639-643.[8]　BEUNJJ,VANLOOSDRECHTMCM,HEIJNENJJ.AerobicGranulation[J].Wat.Sci.Technol.,2000,41(4/5):41-48.[9]　TAYJH,LIUQishan,LIUYu.Microscopicobservationofaerobicgranulationinsequentialaerobicsludgeblanketreactor[J].JournalofAppliedMicrobiology,2001,91(1):168-175.[10]　TAYJH,LIUQishan,LIUYu.Characteristicsofaerobicgran-ulesgrownonglucoseandacetateinsequentialaerobicsludgeblanketreactors[J].EnvironmentalTechnology,2002,23(8):931-936.(下转第122页)118　　29　2　200727　Fig.7　Controlexperimentwithoutbacteriaandduplicatedexperiment3　　Cu,,220mL2.2、4.4g,Cu90%,11.0、22.0g,Cu,15d90%。,Fe2+,