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1,2(11,610031;21,644000):,:;;;:X52:A:167224984(2005)0120116202PreparationandpropertiesofPASSflocculantsXIONGFeng1,LUOJie2(11SchoolofEnvironmentalScienceandEngineering,SouthwestJiaotongUniversity,Chengdu610031,China;21PhysicsTeachingResearchGroupofCaibaMiddleSchoolofYibinCity,Yibin644000,China)Abstract:Thecalculationalmodelsofriverenvironementcapacityincludetheorganiccompoundmodelwiththeheavymetalmodel1Thistextproceedsscienceanalysistoeverykindofthecalculationalmodelsofriverwaterenvironment,combinetoapplywithitsscopeandcomputedmethod1Keywords:Environmentcapacity;Calculationalmodel;Organiccompound;Heavymetal:2003211209;:2004203208:(1979-),,,:1,,[1],;,[2];;2:,,211:,,E=E1+E2+E3=Q(Cs2C0)+kVCs+qCs:E;E1;E2;E3;Q;Cs;V;K;C0;Dx;u,K:udCdx=-KC,C(0)=C0,=K,:,31120051CHINAMEASUREMENTTECHNOLOGYVol131No11Jan,2005;,,EWE=W=8614C2(q+Q)-CpQe-kluCs;Q;q;l;u;k;Cp,,,,,,E1E2:E1=Cs(q+Q)-QC0E2=(C1-C2)(q+Q)=Cseklu-Cs(q+Q)=Cseklu-1(q+Q)E=E1+E2=Cs(q+Q)eklu-QC0E;E1;E2;Cs;K;q;Q;C2;C1(C=C0e-klPu);C0;l;u,Cs,,,,,:Qi-1Ci-1e-ki-1ti-1+qipi=CiQi:Qi-1+qi-1=QiQii;Cii;qii;pii;kii;tiiCi=Csi(i),Ci-1=Csi-1,:piqiCsi(Qi-1+qi)-Csi-1Qi-1e-ki-1ti-1:Ei=Csi(Qi-1+qi)-Csi-1Qi-1e-ki21ti-1Eii,,,,,,[3],(Thomas)():u5C5x=-(kd+ks)C=-KCC(0)=C0:C(x)=f(x)=C0exp(-kxPu):E=Q(Cs-C0)+QCs(ekt-1)+ni=1qiCs+Csni=1qi(ekiti-1)(126)311:1174B:zB=(L1+L2)(t)(8)(3)(5)(6)(7)(8)2R=z&Bt:(L1+L2)xsin(t-)t=2R2(4L1+4L2+R)xQmAyKysin(t--)(9),,(9):(L1+L2)t=2R2(4L1+4L2+R)QmAyKy:K=tQm=2R2(4L1+4L2+R)Ay(L1+L2)Ky(10),[1],1[M]1:,1995:372-3771[2]1[M]1:,1980:54-571[3]1[M]1:,1995:265-2681[4],1U[J]1,1998,17(4):81-851(117):Q;Cs;qii;kii;C0;tii;t=lPu;li;ui,,212:E=Cs(Q+q)-C0QQ;Cs;q;Co345,,,,[4]:M=M1+M2M,M1,M24,,,,,,,,,,,[1],1[M]1:,1991:20-231[2]1[M]1:,1990:41-431[3]1[M]1:,1988:36-411[4]1[M]1:,1993:7-8112620051