稠油炼化污水处理用聚合硅磷硫酸铁的制备

:2008202229:(50402013):(1967-),,,30120091()JournalofNortheasternUniversity(NaturalScience)Vol130,No.1Jan.20091,2,1(1.,110004;2.,150001):,,:55%,15%,1121,40,4h,60,2h:5101,3121,18101,,9411%:;;;:X501:A:100523026(2009)0120137204PreparationofPolymericSilicatePhosphateFerrousSulfateUsedtoTreatWastewaterfromHigh2ViscosityOilPetrificationXUXin2yang1,LILi2jun2,LIRu1(1.SchoolofResources&CivilEngineering,NortheasternUniversity,Shenyang110004,China;2.SchoolofMunicipal&EnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150001,China.Correspondent:XUXin2yang,professor,E2mail:[e-mail])Abstract:Anewkindofflocculant,namedpolymericsilicatephosphateferroussulfate(PSPFS),wassynthesizedwithferroussulfateasmainmaterialandsilicateandphosphateasadditives.TheinfluencingfactorsinthesynthesisprocessofPSPFSwereexperimentallyinvestigatedtodeterminetheoptimalpreparationconditionsasfollows.Themassfractionsofferroussulfateandsodiumsilicateshouldbe55%and15%,respectively,andthemoleratioofferroussulfatetohydrogenperoxideshouldbe1.21.Theoxidationtemperatureis40heldfor4h,andpolymerizationtemperatureis60for2h.Determinedbyhomogeneouscompoundtheoptimalmoleratiosofferriciontosilicate,sulfuricacidandphosphateradicalare5.01,3.21and18.01,respectively.Theexperimentalresultsshowedthattheflocculantsynthesizedundertheconditionsmentionedaboveisabletoremove94.1%oilfromhigh2viscosityoilpetrificationwastewaterofLiaohePertrochemicalCorporation.Keywords:PSPFS;coagulation;flocculant;wastewaterfromhigh2viscosityoilpetrification,3000t,,,,,,,220,4[1],,,,,,,,,,[2-4],,,[5-7]11.1:FeSO47H2ONa2SiO39H2ONaOH1.2:752pHS-21.3,(pH8.24)11()Table1Waterqualityindexofsamplemg/LCOD130521.3459.2428651.475222.1,,::2FeSO4+H2O2+H2SO4Fe2(SO4)3+H2O;(1):Fe2(SO4)3+nH2OFe2(OH)n(SO4)3-n/2+n/2H2SO4;(2):m[Fe2(OH)n(SO4)3-n/2][Fe2(OH)n(SO4)3-n/2]m(3),,,H+,H+,,,;()pH,,MOM;,Sillen+,M(OH)(n-t)+t,11Fe3+Fig.1Hydrolytic2polymericprocessofFe3+2.2FeSO47H2O,,FeSO47H2O;Na2SiO39H2O100mL,,30%Fe2+Fe3+,,,,2.32.3.1Fe2+,Fe3+,,831()30,,,,,,,,,FeSO47H2O55%2.3.2H2O2H2O2,Fe2+Fe3+,H2O2,Fe2+Fe3+,,H2O2Fe2+1.21,Fe2+,1.21Fe2+Fe3+,,,2.3.3[7],20%,,,,,15%,,2%,,2%2.3.4,,,,,,;,,,,60,2h2.4,pH,,3,,,22Table2Moleratiosofexperimentalelement(x1)(x2)(x3)14.461.955.7022.901.213.2532.261.498.59411.232.174.3255.211.4113.2463.572.175.6672.812.3321.97810.371.587.3595.734.6244.26104.102.449.59,200mg/L(FeSO4),33Table3ExperimentalresultsandphenomenashownateachlevelAmgL-110.4295910d,20.744105,,,24h,30.5037010d,40.3775210d,50.34347,24h,60.43360,24h,70.3815210d,80.34547,24h,90.36750,Fe(OH)3,100.2473310d,9311:[7],,44Table4Optimalmoleratios5.013.2118.013(FeSO4200mg/L,pH69,2545,2min,3min),55Table5WaterqualityindicesofwatersamplesbeforeandafterflocculationCOD/(mgL-1)130521.3459.242865/(mgL-1)77.02.3733.47876.69/%94.188.943.569.441),:55%,15%,1121,40,4h,60,2h2),,:5101,3121,181013),,9411%:[1][M]:,1999(ZhangRui.Thetechnologyofheavyoilthermalrecovery[M].Beijing:PetroleumIndustryPress,1999.)[2],,[J],1999(2):137-140(HaoHong2ying,CuiZi2wen,HaoHong2yuan.Studiesandapplicationsofflocculantsinwatertreatment[J].JournalofNorthChinaInstituteofTechnology,1999(2):137-140.)[3],[J]:,2007,28(5):721-724(XuXin2yang,GuNi2na.Screeninganddomesticationofmicroorganismusedinoilcontaminatedwastewaterremediation[J].JournalofNortheasternUniversity:NaturalScience,2007,28(5):721-724.)[4],[J]:,2007,28(9):1329-1332(XuXin2yang,GuNi2na.Chemicalembeddingimmobilizationtechniqueofmicroorganismusedinoilcontaminatedwastewaterremediation[J].JournalofNortheasternUniversity:NaturalScience,2007,28(9):1329-1332.)[5]GaoBY,HahnHH,HoffmannE.Evaluationofaluminum2silicatepolymercompositeasacoagulantforwatertreatment[J].WaterResearch,2002,36(14):3573-3581.[6]GaoBY,YueQY,WangBJ.Poly2aluminum2silicate2chloride(PASiC)anewtypeofcompositeinorganicpolymercoagulant[J].ColloidsandSurfacesA:PhysicochemicalandEngineeringAspects,2003,229(1/2/3):121-127.[7][D]:,2007(LiLi2jun.Preparationofpolymersilicatephosphateferroussulfateanditsapplicationhigh2viscosityoilpetrificationwastewatertreatment[D].Shenyang:NortheasternUniversity,2007.)041()30