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334硅酸盐通报Vol．33No．420144BULLETINOFTHECHINESECEＲAMICSOCIETYApril2014--张卫红1，刘莹1，李文国2，郗丽娟1，张万友11．1320122．132012、PACSS。pH、、SiO2%PACSS。pH2SiO2%6%0．51．5h、93．8%88．6%。TQ178A1001-1625201404-0980-04StudyonPreparationandApplicationofPoly-aluminum-calcium-silicateSulfateCoagulantinPapermakingWastewaterZHANGWei-hong1LIUYing1LIWen-guo2XILi-juan1ZHANGWan-you1SchoolofChemicalEngineeringNortheastDianliUniversityJilin132012China2．EthylenePlantofJilinPetrochemicalCompanyChinaNationalPetroleumCorporationJilin132012China1960-．．E-mailzwhjl1102@163．comAbstractThePoly-aluminum-calcium-silicateSulfateflocculentwasmadeupbyindustryabandoncarbideslagwithsodiumsilicateandaluminumsulfate．ThePACSSwasusedtoremovalorganicsfromwastewater．Theinfluenceofthecalcium-siliconratiothealumina-silicaratiothepHofexcitationsilicicacidtheresponsetimeofpolycondensationandthemassfractionofSiO2%havebeeninvestigated．TheoptimumpHofexcitationsilicicacidwas2intheexperimentsandmassfractionofSiO2%wasreached6%whenthecalcium-siliconratiowas0．5andthetheresponsetimeofpolycondensationwas1．5h．Theremovalrateoforganicsandchromaticityfromwastewaterwerereached88．6%and93．8%byPACSS．Keywordscarbideslagcoagulantpapermakingwastewater1CaOH21-3。、、。40、、4--9814-6。、78、PACSS。22．1PACSS、、pH。PACSS。2．2500mL200r/min1min60r/min10min30min、。GB/T11914-89GB11903-1989。33．1PACSSPACSS0．5～1．5hpH1～3Ca/Si0．2～0．7SiO2%4%～8%。L9343。1。2。1Tab．1ＲesultoforthogonalexperimentalNo．pHofexcitationsilicicacidＲesponsetimeofpol．/hCa/SiSiO2%Chromaticity/%CODcr/%110．50．7490．482．99211．00．5688．625．17311．50．2891．579．62420．50．5872．691．84521．00．2491．348．98621．50．7658．376．8730．50．7692．542．4831．00．5851．622．45931．50．2473．542．182Tab．2ＲangetableoffactorsＲangepHofexcitationsilicicacidＲesponsetimeofpol．/hCa/Si/%SiO2/%K187．4785．782．384．65K279．6278．9777．6280．3K374．8577．2682．077．0ＲCODcr23．720．3517．026．112SiO2%PACSSSiO2%。pHCa/SiCa/SiPACSS。3．2PACSS98233PACSSPACSS。3．1．1pHPACSS0．5hSiO2%6%Ca/Si0．537．5mg/LpH。1。1pH278．6%91．4%。pHpH7。pH2。3．2．2PACSSpH2Ca/Si0．5SiO2%6%37．5mg/L。2。1pHFig．1DifferentpHlevelsofsinglefactorexperiments2Fig．2Underdifferentpoly-condensationreactiontimeofthesinglefactorexperiments21h。、。。3．2．3SiO2%PACSSpH21hCa/Si0．537．5mg/LSiO2%。3。3SiO2%Fig．3UnderdifferentSiO2%massfractionofthesinglefactorexperiments4Ca/SiFig．4UnderdifferentmolarratioofCa/Sithelevelofsinglefactorexperiments4--9833SiO2%6%PACSS。SiO2%。SiO2%SiO2%。3．2．4Ca/SiPACSSpH=2SiO2=6%1h37．5mg/LCa/SiPACSS4。490%70%。Ca/SiCa/Si0．5。4PACSS。PACSSpH=2SiO2=6%1hCa/Si=0．5。PACSS、93．8%88．6%。PACSS。1．CO2J．20123161621-1625．2．J．2010292416-421．3．J．2009282235-238．4WenPChengFHYuＲFetal．Evaluatingthecoagulantsofpoly-aluminumsilicatechloridesonturbidityremovalJ．SeparationScienceandTechnology2006412297-308．5．J．2009301249-52．6．J．200738529-31．7．J．2007231014-17．8WangYFChenKFMoLHetal．Pretreatmentofpapermaking-reconstitutedtobaccoslicewastewaterbycoagulation-flocculationJ．Appliedpolymerscience20132261092-1096．