10120192Vol.10No.1Feb.2019NonferrousMetalsScienceandEngineeringpH,,,,,(,341000):(AGS)pH,pH(pH3、4、5、10、11、12)AGS.,AGSpH((EPS)102.5mg/g76.43mg/gMLSS,(SOUR)17.94mgO2/(gMLSS·h))16.19mgO2/(gMLSS·h)),pH34,,CODTP80%.,AGS.pH,AGS(EPS93.27mg/gMLSS178.45mg/gMLSS,SOUR6.81mgO2/(gMLSS·h))4.30mgO2/(gMLSS·h)).,AGS,COD、TN、TP50%.AGS,AGS.:;pH;;;:X701:AEffectofpHonstabilityofaerobicgranularsludgeZHANGLinan,XUANXinpeng,CHENGYuanyuan,WANGJianqi,HUANGSinong,LONGBei(SchoolofArchitecturalandSurveying&MappingEngineering,JiangxiUniversityofScienceandTechnology,Ganzhou341000,China)Abstract:Inordertoinvestigatethetoleranceofaerobicgranularsludge(AGS)todifferentpHenvironments,thestabilityofAGSunderdifferentpHwastewaters(3,4,5,10,11,12)wasstudied.Intheacidicenvironment,thephysicalandchemicalpropertiesofAGSdeteriorated(EPSdecreasedfrom102.5to76.43mg/g,SOURdecreasedfrom17.94to16.19mgO2/(gMLSS·h))asthepHdecreased.WhenthepHwas3or4,sludgefloatingwasobservedindifferentdegrees,andtheremovalefficiencyalsoshowedadownwardtrend.Inadditiontotheunsatisfactoryremovalofammonianitrogen,theremovalrateofotherpollutantsremainedabove80%.Inthealkalineenvironment,sludgeswellingalsooccured.AstheincreaseofpH,thephysicalandchemicalpropertiesdecreased(EPSrosefrom93.27to178.45mg/g,SOURdecreasedfrom6.81to4.30mgO2/(gMLSS·h)).Atthesametime,theremovalabilityofAGSforpollutantsdecreasedsharply,andtheremovalratesofCOD,TNandTPalldroppedbelow50%.TheresultsshowedthatAGSwascapabletomaintainstableinacidicenvironment,whilealkalineenvironmenthadagreaterinhibitoryeffectonAGS.Keywords:aerobicgranularsludge;pH;activated;extracellularpolymericsubstances;stability:2018-11-14:(GJJ150627);(20181BAB216026);2018(201810407005):(1986-),,,,,E-mail:17770132146@189.cn.1674-9669201901-0087-05DOI10.13264/j.cnki.ysjskx.2019.01.014:,,,.pH[J].,2019,10(1):87-91.[1-3](AGS),,、、[4,5].,AGS,[6-8].AGS、[9].AGS、,AGS[10].,AGS.pH[11],pH,[12].pH6.5~8.5[13-15].,pHAGS,AGSpH.pHAGS,(pH7)[16],AGS、,;(pH≥7)AGS、,[17],[18].AGS.pH6~9,AGSCOD[19].[20]、[21][22,23]、,,,、,.pHAGS.,AGSpH6~9,,,AGS.,AGS.,AGS,pH(3~510~12)AGS,AGS.11.16500mL(5cm、26cm、5.2).2h,,84.8L/h,1.2cm/s.AGS500mL、pH.6pH3、4、5、10、11、12.,21℃.(EPS)(SOUR)、.1.2500mLAGS,3~5min,,2~3.、、,COD、、(TP)600mg/L、30mg/L6mg/L.1.3COD、、、TP、pH[24],,(TIN)、;(SV)、(SVI)、(MLSS)、(MLVSS);.EPS,[25].EPS(PN),(PS)-.SOUROCHOA[26],,SOURH,SOURNH4,SOURNO2,SOURNH4SOURNO2(SOURN).22.1AGS2.1.1AGS1.,pH5,pH3、4、10、11、12,,,pH12,.,,、,,;.pH20192883、1112,3pH,.2.1.2(EPS)EPS,、,AGS[27].AGSEPS2(a).2(a),pH,EPS(76.43~178.45mg/gMLSS).(pH≤5),EPSpH(76.43~102.50mg/gMLSS),pH(pH3)EPS,pH35,EPS,,EPSAGS[28-30];(pH≥10)EPS(93.72~178.45mg/gMLSS),AGSpH,EPS,AGS,,EPS,EPS[31],pH≥10,PN/PS(0.17~0.24).PN/PSpH≤5,(0.06~0.04mg/g),EPS,pH,H+,.PSPNEPSAGS.SEVIOUR[32],EPSpH—,EPSPN.,pHEPSPN/PS(0.06~0.24),PSEPS.2.1.3(SOUR)SOUR2(b).(pH≤5),pH7,SOUR(16.19~17.94mgO2/(gMLSS·h)),;(pH≥10),pH,SOUR(6.81~4.30mgO2/(gMLSS·h)),,EPS.SOUR1AGSpH(:0min-60min-120min-125min)Fig.1AGStreatmentofdifferentpHwastewater(fromlefttorightineachgroup:0min-60min-120min-125min)pH=3pH=4pH=5pH=10pH=11pH=122AGSpHEPS&PN/PS、SOUR&SOURH/SOURNFig.2ChangesofEPS&PN/PS,SOUR&SOURH/SOURNindifferentpHwastewatertreatedbyAGS1801601401201008060402002345678910111213EPSPN/PSpHEPS/[mg·(g·MLSS)-1]20181614121086422345678910111213SOURSOURH/SOURNpHSOUR/[mgO2·(g·MLSS)-1]0.30.20.10.022201816141210SOURH/SOURN(a)(b)101,:pHPN/PS89AGS,EPSPN/PS.SOURH/SOURN,pH.pH4pH11,,pH411.2.2AGS2.2.1TINpH,AGSpHTIN3(a),(pH≤5),、TIN(27.40~23.40mg/L、27.61~23.56mg/L),、(0.06~0.01mg/L、0.15~0.14mg/L);(pH≥10),、TIN(23.16~21.32mg/L、23.35~22.20mg/L),(0.04~0.74mg/L)、0.14mg/L.,,,;TIN、TIN,TIN.TIN,.2.2.2TPTP3(b).(pH≤5),pHTP(1.0~0mg/L),pHTP80%,AGS;(pH≥10),TP(3.16~4.75mg/L),TP,pH=1047%pH=1220.8%,.pH[12],,[33],.2.2.3CODAGSCOD3(c).(pH3~5),CODpH(500~100mg/L),pH34,COD,pH=5,84%,pH45,pH3;(pH10~12),COD(400~900mg/L),AGSCOD,CODpH12,25.3%.,,COD,COD.31),AGSEPS(76.43~3AGSpHTIN、TP、CODFig.3TheeffluentTIN,TP,CODconcentrationandremovalrateunderdifferentpHwastewatertreatedbyAGS3025201510502345678910111213TINTINpHTIN、NH4+-N、O2--N、NO3--N/(mg·L-1)NH4+-NNO3+-NNO2+-N302520151050TIN/%5432102345678910111213TPpHTP/(mg·L-1)TP100806040200TP/%100080060040020002345678910111213CODpHCOD/(mg·L-1)COD100806040200COD/%(a)(b)(c)2019290102.50mg/gMLSS)SOUR(16.19~17.94mgO2/(gMLSS·h))pH;TP(1.0~0mg/L)、COD(500~100mg/L)pH,TP80%.,pH,,,TIN.2),pH1112,AGS,、,COD,AGS,.,AGS.:[1]CAMPOSJL,FIGUEROAM,MOSQUERA-CORRALA,etal.Aerobicsludgegranulation:state-of-the-art[J].WaterScienceandTechnology,2009,1(2):136-151.[2]LIUY,TAYJH.Stateoftheartofbiogranulationtechnologyforwastewatertreatment[J].BiotechnologyAdvance,2004,22(7):533-563.[3]KHANMZ,MONDALPK,SABIRS.Aerobicgranulationforwastewaterbioremediation:areview[J].CanadianJournalofChemicalEngineering,2013,91(6):1045-1058.[4]NANCHARAIAHYV,SARVAJITHM,LENSP.Selenitereductionandammoniacalnitrogenremovalinanaerobicgranularsludgesequencingbatchreactor[J].WaterResearch,2018,131:131-141.[5],,,.[J].,2017,33(5):63-69.[6]NIBJ,XIEWM,LIUSG,etal.Granulationofactivatedsludgeinapilot-scalesequencingbatchreactorforthetreatmentoflow-strengthmunicipalwastewater