几种混凝剂深度除磷性能的对比研究

GUANGXIJOURNALOFLIGHTINDUSTRY200911122。、。。、。GB18918-2002A(≤0.5mg/L)[1]。[2]。(PAM)。1.1AlCl3A12(SO4)3。A13++HnPO4(n-3)→A1PO4+nH+pH(5.8~6.9)Al3+PO43-A13+Al(OH)+Aln(OH)m(3n-m)+(n1m≤3n)ξ[3]。Al13(OH)5+34、[Al(OH)3]m。1.2FeCl3Fe2(SO4)3。::Fe3++PO43-→FePO4↓Fe2++PO43-→Fe3(PO4)2↓:Fe3++HCO3→Fe(OH)3↓+CO2:Fe3+Fe2(OH)24+、Fe3(OH)45+、Fe5(OH)96+、Fe5(OH)87+、Fe5(OH)78+、Fe(OH)126+、Fe7(OH)129+、Fe7(OH)1110+、Fe9(OH)207+Fe12(OH)342+[4]。ζ。1.3PAMPAM。PAM[4]。。1.4PAMPAMPAMPAM。。2.1:1.9mg/L(AlCl3):0.001mg/L(Al2(SO4)3):0.001mg/L(FeCl3):0.001mg/L(Fe2(SO4)3):0.001mg/L(PAM):0.2%(HCl):0.1mol/L(NaOH)0.1mol/L。2.21000ml500ml1minPAM0.5ml1min12min【】24。541004【】PAM、、pH、。PAM1520min。【】PAM【】X703【】A【】1003-2673(2009)01－89－038930min0.45μm。25ml50ml。0.1mol/LHClNaOHpH。3.1PAMpH72min1。10.5mg/L2.5-3.5mLFeCl3。79.61%。Fe2(SO4)30.5mg/L3-3.5mL82.63%。0.5mg/L。PAMPAM85.45%。0.33mg/LPAMpH72min2。220.5mg/L。0.4mg/L0.5mg/L3-3.5mLAlCl376.47%。Al2(SO4)30.5mg/L0.5mg/L3mg/LAl2(SO4)3。0.5mg/L。Al2(SO4)373.78%。PAM。0.33mg/LAl-Cl3Al2(SO4)3。FeC13Fe2(SO4)3。。3.2FeCl3、Fe2(SO4)3、AlCl3、Al2(SO4)334。10min30min5%10min20min20-30min。15-20min。34PAM。。2min。。。PAM。PAMPAM20min92.15%。3.3pHpH[4]。pHPAM。2.0mg/L0.49mg/LpH9088。[1][J].,1997,12(5).[2],.[J].,2004,3(14).[3]Cr[J].,2005,24(1):133-136.[4],.[J].,1997,5(6):34-43.[5]AdamsBA.JSocChemInd,1935.54:1-6.[6][J].,1997,5(6).[7].[J].,1999,20(1):33-38．[8]..,1999.16(1).[9]GaddGM,WhiteC,DeromeL,In:KellyDP,NorrisReds.Heavymetalandradionuclide.[10]EnglA,KunzB．BiosorpfionUraniuminWasteler[J].Chem．Tech．Biotechnol,1995,68(1):19-22．[11]SameerA.BiotechnolProg,1995,(11):638-642.[12],.[J].,2004,232.56。5pH。5pH5-874.14%pH6-781.1%pH9Fe(OH)3。PAMpH6。6PAMpH3.4PAMPAM1minPAM。。PAMPAM[5]。pHPAM15-20minPAM。PhPAMPAM。PAM。PAM。pH71.9mg/LPAMpHFeCl3Fe2(SO4)3。FeCl3PAM。AlCl3PAM1520min92.15%GB18918-2002A(≤0.5mg/L)。PAM。PAM、;FeCl3PAM。[1],.[J].,2000,21(1):18-22.[2].[M].:,1997.[3].[M].:.[4],.[J].,2001,23(3):52-55.[5],.[J].,2002,24(2):17-21.[6].[M].:,1992.91