SBR反应器处理番茄酱生产废水的污泥颗粒化过程王燕杉

SBR111121．8300522．830052、SBRCOD、、EPS。38d427～502μm。COD、NH+4－N、PO3－4－P96．0%、97．3%、95．2%。50d、SVI5、MLVSS/MLSS、6．1g/L、23．4mL/g、93．2%、33～44m/h。PN/PS1．823．17α－、β－。SBRTU[e-mail]RReactorforTreatmentofTomatoPasteProcessingWastewaterWANGYan-shan1WANGWei-hong1DONGXing-liao1LIUQian-qian1CHENGLi-gang21．CollegeofHydraulicandCivilEngineeringXinjiangAgriculturalUniversityUrumqi830052China2．XinjiangChangyuanWaterResearchInstituteUrumqi830052ChinaAbstractAlargeamountofwastewaterwasproducedduringtheproductionoftomatopasteinXinjiangwhichcausedseriouspollution．InordertofindasuitabletreatmentprocessflocculentactivatedsludgewasinoculatedinSBRreactoranditspollutantsremovalperformanceappearancemorphologymicrobialactivityandthecompositionofextracellularpolymersubstanceEPSwerestudiedundertheconditionofgraduallyincreasingCODconcentration．TheresultsshowedthatellipsoidalaerobicgranularsludgeAGSwiththesizeof427－502μmappearedafter38daysofoperationanditwasrichinbiofaciesafteraerobicgranulation．TheaverageremovalratesofCODNH+4－NandPO3－4－Pwere96．0%97．3%and95．2%respectively．ThesludgeconcentrationMLSSsludgevolumeindexSVI5MLVSS/MLSSratiosedimentationratewere6．1g/L23．4mL/g93．2%33－44m/hafter50days．DuringthegranulationprocesstheratioofproteintopolysaccharidePN/PSincreasedfrom1．82to3．17．Observationbyconfocallaserscanningmicroscopyrevealedthatproteinwasevenly·52·35120191CHINAWATER＆WASTEWATERVol．35No．1Jan．2019distributedthroughouttheparticlecrosssectionandincreasedatasignificantlyfasterratethanpolysaccharidesα-polysaccharidesandβ-polysaccharidesweremainlydistributedintheouterlayerofparticlesandbothproteinandpolysaccharideconstitutedtheframeworkofAGS．Keywordstomatopasteprocessingwastewateraerobicgranularsludgesequencingbatchreactorextracellularpolymersubstance30%。。+。1——CASSCOD、BOD5、SS。2ABR+。。、、、3－4。Mishima5AUSB。6C/NSBRCOD、NH+4－N、TP84．84%、93．51%85．69%。Liu7COD、NH+4－NPO3－4－P95．1%、99．3%83．5%。8、9、10、11。。SBR、、。11.1SBR18cm100cm5L。、60%。。1SBRFig．1SchematicdiagramofSBRreactorSBR240min、10、2min20～25℃NH+4－N、PO3－4－P55±6、10±2mg/L1。1SBRTab．1OperationparametersofSBRreactor/d/min/minCOD/mg·L－1/kgCOD·kg－1MLSS·d－1Ⅰ1～1530～17198～211400±540．32Ⅱ16～3310～5218～223800±230．53Ⅲ34～514～3224～2251300±380．691.2MLSS5．61g/LMLVSS2．02g/LSVI5146．3mL/g。NH4Cl、Na2HPO4Na2CO3pH7．5～8．2H3BO40．05mg/LZnSO4·7H2O0．11mg/LCoCl2·6H2O0．045mg/LCuCl20．05mg/LNiCl2·6H2O0．05mg/LCaCl220mg/LNH4Mo7O24·4H2O0．05mg/L·62·351．cnww1985．comMnSO4·H2O0．05mg/LAl2SO43·8H2O0．25mg/LFeCl3·6H2O0．83mg/LMgSO4·7H2O50mg/L。1.3MLSS、MLVSS、SVI、COD、NH+4－NPO3－4－PDOpHpHMoticimageCLSMChen12ZEISS1001000mL。22.115μm2a。5d17d120～180μm。192b。38、427～502μm。、。2Fig．2Apparencechangesofsludgeatdifferentstagesandbiofacies2.2CODMLSSMLVSSW。MLVSSMLSS37．4%93．2%13。SVI5SVI30146、71．5mL/g23．4mL/g84%、67%5min3。3MLSS、MLVSS、SVI5、SVI30Fig．3ChangesofMLSSMLVSSSVI5andSVI30withtimeⅠ30min17minMLSS3．2g/L。MLSS6．1g/L。Ⅱ5minMLSS2．85g/LCOD400mg/L800mg/L。ⅢMLSS3min。50d33～44m/h59．6%30m/h6．1%。8～10m/h30～70m/h14－1570d31～43m/h。。EPSPNPS15。PSPN。PSPN·72·．cnww1985．comSBR3514。4PSPNFig．4ChangesofPSandPNcontentswithtimePSPN19．4535．02mg/gMLSSPSPN。EPSPS、PN。PN65．23mg/gMLSSPS28mg/gMLSSPN/PS1．822．32PN/PS2．323．17。PN/PS。2.3ⅠCOD400mg/LCOD。ⅠCOD38．9mg/L66%90%。ⅡCOD800mg/L6dCOD65mg/L。ⅢCOD1300mg/LCOD43mg/L96．0%A。NH+4－N55～60mg/LNH+4－N5。NH+4－N。pHNa2CO3。DO6mg/LNH+4－N25dNH+4－N1．40mg/L97．3%。5NH+4－NFig．5RemovalofNH+4－NatdifferentstagesPO3－4－P10mg/L15dPO3－4－P33．1%。PO3－4－P25d95．2%6。6PO3－4－PFig．6RemovalofPO3－4－Patdifferentstages2.4EPSEPS7EPS。EPS。16+EPS。α－、β－。Adav17β－。EPS。·82·351．cnww1985．com7CLSMFig．7CLSMimagesoftheaerobicgranule3①SBR17120～180μm38d、0．5mm。②COD43mg/LNH+4－N、PO3－4－P97．3%、95．2%。③33～44m/h。PN/PS1．823．17。④CLSMα－、β－。1．－－CASSJ．201124540－42．LiuYunpengZhangHuanzhenHaoShujun．Engineeringapplicationofflotation－hydrolysisacidification－CASSprocesstotreattomatoproducingwastewaterJ．EnvironmentalScienceandTechnology201124540－42inChinese．2．ABR+J．201032416－19．ZuoChangping．ApplicationofABR+activatedsludgeintomatowastewaterJ．EnviromentalProtectionofXinjiang201032416－19inChinese．3CarucciAMiliaSCappaiGetal．AdirectcomparisonamongstdifferenttechnologiesaerobicgranularsludgeSBRandMBRforthetreatmentofwastewatercontaminatedby4-chlorophenolJ．JournalofHazardousMaterials20101771/31119－1125．4AdavSSLeeDJShowKYetal．AerobicgranularsludgerecentadvancesJ．BiotechnolAdv2008265411－423．5MishimaKNakamuraM．Self-immobilizationofaerobicactivatedsludge—ApilotstudyoftheaerobicupflowsludgeblanketprocessinmunicipalsewagetreatmentJ．WaterSciTechnol201423981－990．6．J．201536114180－4188．LengLuXinXinLuHangetal．Rapidstart-upofsimultaneousnitrificationanddenitrificationcoupledphosphorusremovalprocessanditsperformingcharacteristicsJ．EnviromentalScience201536114180－4188inChinese．7LiuYKangXLiXetal．PerformanceofaerobicgranularsludgeinasequencingbatchbioreactorforslaughterhousewastewatertreatmentJ．BioresourTechnol2015190487－491．8AmorimCLMaiaASMesquitaRBR．PerformanceofaerobicgranularsludgeinasequencingbatchbioreactorexposedtoofloxacinnorfloxacinandciprofloxacinJ．WaterRes