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28220116JournalofGuangdongUniversityofTechnologyVol．28No．2June20112010-12-312010Z5242010B0309000011986-．510006APAPpHAP．10.3mg/LAPr2～3v20.3mg/L20.395%0.1～0.3mg/L3DV＞2DV＜24pHpH．TU991．23A1007-7162201102-0012-064%～7%1．．．、、、、．、．、、2-55．“”、．、．11．1AN910SHSNFFLOERG-ERAPC3H5NOn1.5×107．APAP10mg/L0.5mol/LNaOH0.2mol/LH2SO4150mm．1．2wNaCl=0.5%NaCl2100PDHG-9145AA2O4FE-210OlympusSMZ-T2、．1．3、．．0.5mol/LNaOH0.2mol/LH2SO4pH．0.395%．1．41LpH=7AP．1AP5s200r/min30s290s60r/min．700．5mm7cm20mL/min．、．Coackley690mm150mm0.0355MPa400mm0.5%NaCl．DADV、．15min．1．122．1APpH=7AP0、0.05、0.1、0.3、0.5、1.0mg/L、、、．2．2AP2．1．12AP．．AP2a．AP0.05mg/L．2b．AP1～52c、d7s．10sAP－“”－7．．AP2e12s．4s14s10cmAP2s“”．AP2f19s10cm．2．1．2AP1．3AP．AP．StokesdSTσ3121．4AP．APσ．AP0.1～0.3g/Lσ45、6RL-CAReaction-limitedColloidAggregation．AP“”．DLCADiffusion-limitedColloidAggregation8-9．3AP20×4AP5AP6AP1APAP/mg·L－1StokesdST/μmσm/gt/sv/mm·s－1r/1012m·kg－115min/NTU0．0066．6315．924．4421063．5729．3748250．0578．4221．334．476594．7111．7231790．1085．8817．694．664385．488．00152．00．3086．8117．964．762346．158．79447．50．50103．0044．794．833395．567．22461．91．00114．0432．414．941405．697．11156．11AP．AP0.3mg/L5、6．1AP．．2．ρe10．ρe4128dST711-12lgρe=3－DVlgdST+b．APDV．8APDV．DV＞2．80.052.2778．DV＞20.1mg/L、0.05mg/L．0.1mg/L．DV＜2、“”．．Re＞0.17StokesdST8APDv2．1．3APStokesdSTσAP0.1～0.3mg/Lσ．0.1～0.3mg/L．1APr、t、ρe、m、StokesdST0～0.3mg/L．2．1．22DV．DVDV=2AP0.1～0.3mg/L．XDV=20.1～Xmg/L．DV＜2AP8．APAP．APAPAPPAM．0.395%0.1～0.3mg/L0.3mg/L．2．2pHAP0.1mg/LpH．2．2．19pH．pH=4.5～6.0．pH=5、pH=79a、10．pH6.5～7.8AP．“”．pHOH－OH－9c．、10．10pHpH．5129pH10pH2．2．21．11pH．pH=715min．11pH2．pHDV2．pHDV＞2vDV．pHDV＜2v．2pH9DV2DVpHpHDV52．381971．971191．8348pH7DVDV．31AP2～3．2、10.395%AP0.1～0.3mg/L．2pHAP．3DV＞2DV＜2．1．D．2001．2PeterScales．DewateringofwatertreatmentplantsludgesJ．InterfaceScienceandTechnology200610225-243．3．J．2009222-2．4．M．2006．5DavidI．VerrelliPeterJ．Scales．Assessingdewateringperform-anceofdrinkingwatertreatmentsludgesJ．Wa-terResearch20104451542-1552．6SmithaPGCoackleyaP．Amethodfordeterminingspecif-icsurfaceareaofactivatedsludgebydyeadsorptionJ．WaterResearch1983175595-598．7．M．1999．8TangSPreeceJM．FractalmorphologyandbreakageofDLCAandRLCAaggregatesJ．JournalofColloidandIn-terfaceScience2000221114-123．9．J．20061922A97-98．10．J．200561A74．216128ResearchonBendingMomentsandPunchingCalculationsofTriangleCapswithThree-PileFoundationsYangXue-qiangYangRuiZhangJian-longFaultyofCivilandTransportationEngineeringGuangdongUniversityofTechnologyGuangzhou510006ChinaAbstractIncombinationwithprojectionsofreinforcementindifferentdirectionsbendingmomentcalculatingmethodsoftrianglecapswiththree-pilefoundationsaregivenindetailandatthesametimebasedonexperimen-talresultsandtheoreticalformulaofconcreteslabpunchingbearingcapacitypublishedinliteraturesomecom-mentsaboutcornerpilepunchingcodeformulaarefurtherpresentedinthispaper．Theresearchservesasafurtherexplanationofcorrespondingcodespecificationsoftrianglecapswiththree-pilefoundationsandhelpstopromotethedesignofthistypeoffoundations．Keywordscapswiththree-pilefoundationscornerpilebendingmoment櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆punchingbearingcapacity1611CloverSharnaMYao-DeYanetal．Bridgingfloccula-tionstudiedbylightscatteringandsettlingJ．ChemicalEngineeringJournal20008033-12．12TangPGreenwoodJRaperJA．AModeltoDescribetheSettlingBehaviorofFractalAggregatesJ．JournalofColloidandInterfaceScience．20022471210-219．TheConditioningEffectoftheSludgefromWaterPlantwithPolymerFlocculantAPandMorphologicPropertiesHuangHuiLiDong-meiRuanCai-qunHeNaRenYiLiuChun-liuFacultyofCivilandTransportationEngineeringConstructionGuangdongUniversityofTechnologyGuangzhou510006ChinaAbstractTakingthemiscellaneouswaterplantsludgeintheGuangzhouUniversitiesTownCampusasresearchingobjectexperimentbyanionicpolymersshortenedformAPwithbridgingflocculationsettlementwithonlinemi-croscopecameratechnologyandimageanalysistechnologystudyontheconditioningeffectandthecoagulationmorphologicpropertiesofthesludgeunderdifferentdosageofAPanddifferentpHvalue．Theresultsshowedthat1Adding0.3mg/LdosageofAPthespecificresistanceoffiltrationSRFrdrceases2～3timesandthesedi-mentationratevincreasesabout2timesWhenthedosageofAPisgreaterthan0.3mg/Ltheconditioningeffectwilltendtomild2TheoptimaldoseofAPtothesludgewhichsolidrateis0.395percentis0.1～0.3mg/LdosageofAP3WhenthefractaldimensionDV＞2thedimensionwillincreasewiththeincreasingofthedos-agetheflocwillbedenserthefluidresistancewilldeclineandfinallythesinkvelocitywillincrease．MoreeverDV＜2thedimensionwilldeclinewiththeincreasingofthedosagetheinterstitialratewilldeclineandfinallythesinkvelocitywillincrease4ThewateronneutralpHforconditioningsludgeislowerqualitythanthewateronAciditypHandAlkalinepHvalue．Keywordswaterplantsludgeconditioningsludgesettlingbehaviorsflocculationcoagulationmorphologicproperties122