R. Buddmeier and J. Hunt, Transport of colloidal contaminants in groundwater: radionuclide migration at the Nevada test site, Applied Geochemistry, vol.3, issue.5, p.535, 1988.
DOI : 10.1016/0883-2927(88)90025-X

J. F. Mccarthy, W. E. Sanford, and P. L. Stafford, Lanthanide Field Tracers Demonstrate Enhanced Transport of Transuranic Radionuclides by Natural Organic Matter, Environmental Science & Technology, vol.32, issue.24, p.3901, 1998.
DOI : 10.1021/es971004f

Y. Fujikawa, J. Zheng, I. Cayer, M. Sugahara, H. Takigami et al., Strong association of fallout plutonium with humic and fulvic acid as compared to uranium and137Cs in Nishiyama soils from Nagasaki, Japan, Journal of Radioanalytical and Nuclear Chemistry, vol.59, issue.45, p.69, 1999.
DOI : 10.1007/BF02349138

A. B. Kersting, D. W. Efurd, D. L. Finnegan, D. J. Rokop, D. K. Smith et al., Migration of plutonium in ground water at the Nevada Test Site, Nature, vol.73, issue.59, p.56, 1999.
DOI : 10.1038/16231

Y. Minai, G. Choppin, and D. H. Sisson, Humic Material in Well Water from the Nevada Test Site, Radiochimica Acta, vol.56, issue.4, p.195, 1992.
DOI : 10.1524/ract.1992.56.4.195

V. Moulin and G. Ouzounian, Role of colloids and humic substances in the transport of radioelements through the geosphere, Appl. Geochem, p.179, 1992.

C. Petterson, J. Ephraim, and B. Allard, On the composition and properties of humic substances isolated from deep groundwater and surface waters, Organic Geochemistry, vol.21, issue.5, p.443, 1994.
DOI : 10.1016/0146-6380(94)90096-5

J. L. Ryan and D. Rai, Thorium(IV) hydrous oxide solubility, Inorganic Chemistry, vol.26, issue.24, p.4140, 1987.
DOI : 10.1021/ic00271a038

J. H. Adair, H. G. Krarup, S. Venigalla, and T. Tsukada, A Review of the Aqueous Chemistry of the Zirconium - Water System to 200??C, MRS Proceedings, vol.54, p.101, 1997.
DOI : 10.1063/1.1731077

E. Östhols, Thorium sorption on amorphous silica, Geochim. Cosmochim. Acta, vol.59, p.1249, 1995.

K. L. Nash, S. Fried, A. M. Friedman, and J. C. Sullivan, Redox behavior, complexing, and adsorption of hexavalent actinides by humic acid and selected clays, Environmental Science & Technology, vol.15, issue.7, p.834, 1981.
DOI : 10.1021/es00089a011

C. Marquardt, G. Herrman, and N. Trautmann, Complexation of Neptunium(V) with Humic Acids at Very Low Metal Concentrations, Radiochimica Acta, vol.73, issue.3, p.119, 1996.
DOI : 10.1524/ract.1996.73.3.119

V. Pirlet, P. Van-iseghem, A. Dierckx, and J. Desreux, The investigation of the neptunium complexes formed upon interaction of high level waste glass and Boom Clay media, J. Alloys Comp, vol.271, p.267, 1998.

P. Zeh, J. I. Kim, C. M. Marquardt, and R. Artinger, The Reduction of Np(V) in Groundwater Rich in Humic Substances, Radiochimica Acta, vol.87, issue.1-2, 1999.
DOI : 10.1524/ract.1999.87.12.23

C. André and G. R. Choppin, Reduction of Pu(V) by humic acid, Radiochimica Acta, vol.88, issue.9-11, p.613, 2000.
DOI : 10.1524/ract.2000.88.9-11.613

G. R. Choppin, Utility of oxidation state analogs in the study of plutonium behavior, Radiochim. Acta, vol.85, p.89, 1999.

H. Kautsky and H. Weißlau, Darstellung von Ionenaustauschern durch Oberflächenumladungen Au Silicagel, Z. Naturforschg, vol.9, p.569, 1954.

R. O. James and T. W. Healy, Adsorption of hydrolyzable metal ions at the oxide???water interface. II. Charge reversal of SiO2 and TiO2 colloids by adsorbed Co(II), La(III), and Th(IV) as model systems, Journal of Colloid and Interface Science, vol.40, issue.1, p.53, 1972.
DOI : 10.1016/0021-9797(72)90173-7

B. D. Laflamme and J. W. Murray, interaction: The effect of carbonate alkalinity on adsorbed thorium, Geochimica et Cosmochimica Acta, vol.51, issue.2, p.243, 1987.
DOI : 10.1016/0016-7037(87)90235-3

K. A. Hunter, D. J. Hawke, and L. Kwee-choo, Equilibrium adsorption of thorium by metal oxides in marine electrolytes, Geochimica et Cosmochimica Acta, vol.52, issue.3, p.627, 1987.
DOI : 10.1016/0016-7037(88)90324-9

L. Righetto, G. Bidoglio, B. Marcandalli, and I. R. Bellobono, Surface Interactions of Actinides with Alumina Colloids, Radiochimica Acta, vol.44, issue.1, p.73, 1988.
DOI : 10.1524/ract.1988.4445.1.73

A. Jakobsson, Y. Albinsson, and R. R. Rundberg, Studies of surface complexation of H + ,N p O 2 + ,C o 2+ ,T h 4+ onto TiO 2 and H + , UO 2+ onto alumina, Svensk Kärnbränslehantering AB (SKB), pp.98-113, 1998.

L. Cromières, V. Moulin, B. Fourest, R. Guillaumont, and E. Giffaut, Sorption of Thorium onto Hematite Colloids, Radiochimica Acta, vol.82, issue.s1, p.249, 1998.
DOI : 10.1524/ract.1998.82.special-issue.249

D. A. Dzomback and M. M. Morel, Surface complexation modelling, 1990.

M. R. Zaki and K. B. Kolta, On the sorption of thorium ions from aqueous nitrate solutions by silica gel, Indian J. Chem, vol.19, p.630, 1980.

J. Rydberg and B. Rydberg, Adsorption on glass and polythene from solution of thorium and thorium complexes in tracer concentration, Sv. Kem. Tidskr, vol.64, p.200, 1952.

K. Lieser, H. Hill, and R. , Chemistry of Thorium in the Hydrosphere and in the Geosphere, Radiochimica Acta, vol.56, issue.3, p.141, 1992.
DOI : 10.1524/ract.1992.56.3.141

K. Lieser, H. Hill, and R. , Hydrolysis and colloid formation of Th in water and consequences for its migration behaviour ? comparison with uranium, Radiochim. Acta, vol.56, p.37, 1992.

G. Michard, G. Alaux-negrel, P. Toulhoat, C. Beaucaire, and G. Ouzounian, Major and trace element regulation in natural granitic waters. Application to deep radioactive waste disposal, HLRW Management Proceedings, p.179, 1991.

P. Zeh, J. I. Kim, and G. Buckau, Aquatic colloids composed of humic substances, Binding models concerning natural organics in performance assessment, p.81, 1995.

N. Miekeley, M. G. Vale, T. M. Tavares, and W. Lei, Some aspects of the influence of surface and ground water chemistry on the mobility of thorium in the

N. Miekeley, R. M. Dotto, I. L. Kuchler, and P. Insalta, The Importance of Organic Compounds on the Modbilization and Bioassimilation of Thorium in the Morro do Ferro Environment, MRS Proceedings, vol.22, p.591, 1985.
DOI : 10.1007/BF00011522

M. Nordén, Y. Albinsson, J. H. Ephraim, and B. Allard, A Comparative Study of Europium, Thorium and Uranium Binding to an Aquatic Fulvic Acid, MRS Proceedings, vol.294, p.759, 1993.
DOI : 10.1016/0048-9697(91)90363-J

S. E. Niven and R. M. Moore, Effect of natural colloidal matter on the equilibrium adsorption of thorium in seawater, p.111, 1988.

K. L. Nash and G. R. Choppin, Interaction of humic and fulvic acids with Th(IV), Journal of Inorganic and Nuclear Chemistry, vol.42, issue.7, p.1045, 1980.
DOI : 10.1016/0022-1902(80)80398-8

G. R. Choppin and B. Allard, Complexes of actinides with naturally occurring organic compounds In: Handbook on the Physics and Chemistry of the Actinides, p.407, 1985.

R. A. Torres, Humic acid complexation of europium, americium and plutonium, 1982.

R. Torres, A. Choppin, G. , and R. , Europium (III) and Americium(III) Stability Constants with Humic Acid, Radiochimica Acta, vol.35, issue.3, p.143, 1984.
DOI : 10.1524/ract.1984.35.3.143

C. F. Baes and R. E. Mesmer, The hydrolysis of cations, 1976.

R. Portanova, P. Di-bernardo, O. Traverso, A. Mazzochin, and L. Magon, Thermodynamic properties of actinide complexes???II, Journal of Inorganic and Nuclear Chemistry, vol.37, issue.10, p.2177, 1975.
DOI : 10.1016/0022-1902(75)80853-0

R. J. Murphy, J. J. Lenhart, and B. D. Honeyman, The sorption of thorium (IV) and uranium (VI) to hematite in the presence of natural organic matter, Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol.157, issue.1-3, p.47, 1999.
DOI : 10.1016/S0927-7757(99)00115-6

I. Grenthe and B. Lagerman, Studies on Metal Carbonate Equilibria. 23. Complex Formation in the Th(IV)--H2O--CO2(g) System., Acta Chemica Scandinavica, vol.45, p.231, 1991.
DOI : 10.3891/acta.chem.scand.45-0231

E. Östhols, J. Bruno, and I. Grenthe, On the influence of carbonate on mineral dissolution: III. The solubility of microcrystalline ThO2 in CO2-H2O media, Geochimica et Cosmochimica Acta, vol.58, issue.2, p.613, 1994.
DOI : 10.1016/0016-7037(94)90492-8

T. Zuyi and G. Huanxin, Use of the Ion Exchange Method for the Determination of Stability Constants of Thorium with Humic and Fulvic Acids, Radiochimica Acta, vol.65, issue.2, p.121, 1994.
DOI : 10.1524/ract.1994.65.2.121

J. R. Davis, J. J. Higgo, D. J. Noy, and P. J. Hooker, Complexation studies of uranium and thorium with a natural fulvic acid, INE, 2000.

M. A. Denecke, D. Bublitz, J. I. Kim, H. Moll, and I. Farkes, EXAFS investigation of the interaction of hafnium and thorium with humic acid and Bio-Rex 70, Journal of Synchrotron Radiation, vol.6, issue.3, p.394, 1999.
DOI : 10.1107/S0909049598013478

D. Schild and C. M. Marquardt, Analysis of Th(IV)-humate by XPS, Radiochimica Acta, vol.88, issue.9-11, p.587, 2000.
DOI : 10.1524/ract.2000.88.9-11.587

A. Dierckx, A. Maes, and J. Vancluysen, Mixed complex formation of Eu 3+ with humic acid and a competing ligand, Radiochim. Acta, vol.6667, p.149, 1994.

M. A. Glaus, W. Hummel, and L. R. Van-loon, Stability of Mixed-Ligand Complexes of Metal Ions with Humic Substances and Small Molecular Weight Ligands, Environmental Science & Technology, vol.29, issue.8, p.2150, 1995.
DOI : 10.1021/es00008a039

D. G. Kinniburgh, C. J. Milne, M. F. Benedetti, J. P. Pinheiro, J. Filius et al., Metal Ion Binding by Humic Acid:?? Application of the NICA-Donnan Model, Environmental Science & Technology, vol.30, issue.5
DOI : 10.1021/es950695h

J. A. Davis, Complexation of trace metals by adsorbed natural organic matter, Geochimica et Cosmochimica Acta, vol.48, issue.4, p.679, 1984.
DOI : 10.1016/0016-7037(84)90095-4

L. Righetto, G. Bidoglio, G. Azimonti, and I. R. Bellobono, Competitive actinide interactions in colloidal humic acid-mineral oxide systems, Environmental Science & Technology, vol.25, issue.11, p.1913, 1991.
DOI : 10.1021/es00023a012

J. M. Zachara, C. T. Resch, and S. C. Smith, Influence of humic substances on Co2+ sorption by a subsurface mineral separate and its mineralogic components, Geochimica et Cosmochimica Acta, vol.58, issue.2, p.553, 1994.
DOI : 10.1016/0016-7037(94)90488-X

N. Labonne-wall, V. Moulin, and J. Villarem, Retention Properties of Humic Substances onto Amorphous Silica: Consequences for the Sorption of Cations, Radiochimica Acta, vol.79, issue.1, p.37, 1997.
DOI : 10.1524/ract.1997.79.1.37

Y. Takahashi, Y. Minai, S. Ambe, Y. Makide, and F. Ambe, Comparison of adsorption behavior of multiple inorganic ions on kaolinite and silica in the presence of humic acid using the multitracer technique, Geochimica et Cosmochimica Acta, vol.63, issue.6, p.815, 1999.
DOI : 10.1016/S0016-7037(99)00065-4

P. Reiller, V. Moulin, F. Casanova, and C. Dautel, Retention behaviour of humic substances onto mineral surfaces and consequences upon thorium (IV) mobility: case of iron oxides, Applied Geochemistry, vol.17, issue.12, p.1551, 2002.
DOI : 10.1016/S0883-2927(02)00045-8
URL : https://hal.archives-ouvertes.fr/cea-00278075

H. Van-de-weerd, W. H. Van-riemsdijk, and A. Leijnse, Modeling the Dynamic Adsorption/Desorption of a NOM Mixture:?? Effects of Physical and Chemical Heterogeneity, Environmental Science & Technology, vol.33, issue.10, p.1675, 1999.
DOI : 10.1021/es980815w

Q. Zhou, P. A. Maurice, and S. Cabaniss, Size fractionation upon adsorption of fulvic acid on goethite: equilibrium and kinetic studies, Geochimica et Cosmochimica Acta, vol.65, issue.5, p.803, 2001.
DOI : 10.1016/S0016-7037(00)00536-6

J. Vuceta and J. Morgan, Chemical modeling of trace metals in fresh waters: role of complexation and adsorption, Environmental Science & Technology, vol.12, issue.12, p.1302, 1978.
DOI : 10.1021/es60147a007

C. Degueldre, Colloid properties in groundwaters from crystalline formations, NAGRA, Report NTB, pp.92-97, 1992.

M. P. Gardiner, P. Grindrod, and V. Moulin, The role of colloids in the transport of radionuclides from a radioactive waste repository: implication on safety assessment, CCE, 2001.

P. V. Brady, Silica surface chemistry at elevated temperatures, Geochimica et Cosmochimica Acta, vol.56, issue.7, p.2941, 1992.
DOI : 10.1016/0016-7037(92)90371-O

J. Lyklema, Fundamentals of colloid and interface science, Volume I: Fundamentals, 1995.

J. I. Kim, G. Buckau, R. Klenze, D. S. Rhee, and H. Wimmer, Characterisation and complexation of humic acids, CCE, 1991.

N. L. Vekshin, Screening hypochromism of chromophores in macromolecular biostructures, Biophysics, vol.44, p.41, 1999.

C. Ekberg, Y. Albinsson, M. J. Comarmond, and P. L. Brown, Studies on the complexation behavior of thorium(IV). 1. Hydrolysis equilibria, Journal of Solution Chemistry, vol.29, issue.1, p.63, 2000.
DOI : 10.1023/A:1005166517699

I. Grenthe, L. Fuger, R. G. Konings, R. J. Lemire, A. B. Muller et al., Chemical Thermodynamics of Uranium, 1992.

N. Labonne, Rôle des matières organiques dans les phénomènes de rétention des actinides sur la silice, 1993.

L. Cromières, Am(III), Co(II), Cs(I), I(-I)) sur des colloïdes d'hématite, Th(IV) Thèse de l, 1996.

A. João, S. Bigot, and F. Fromage, ´ Etude des carbonates complexes desélémentsdes´deséléments IVB I ? Détermination de la constante de stabilitédu pentacarbonatothorate (IV), Bull. Soc. Chim. France, vol.42, 1987.

A. R. Felmy, D. Rai, S. M. Sterner, M. J. Mason, N. J. Hess et al., Thermodynamic models for highly charged aqueous species: Solubility of Th(IV) hydrous oxide in concentrated NaHCO3 and Na2CO3 solutions, Journal of Solution Chemistry, vol.69, issue.3, p.233, 1997.
DOI : 10.1007/BF02767996

M. Pazukhin, A. S. Krivokhatskiy, and E. Kudryavtsev, Possible formation of plutonium(IV) complexes with soluble silicon-oxygen compounds, Soviet Radiochem, vol.32, p.325, 1990.

A. L. Herbellin and J. C. Westall, FITEQL A computer program for determination of chemical equilibrium constants from experimental data, pp.96-97, 1996.

J. A. Davis, Adsorption of natural dissolved organic matter at the oxide/water interface, Geochimica et Cosmochimica Acta, vol.46, issue.11, p.2381, 1982.
DOI : 10.1016/0016-7037(82)90209-5

C. P. Schulthess and C. P. Huang, Humic and Fulvic Acid Adsorption by Silicon and Aluminum Oxide Surfaces on Clay Minerals, Soil Science Society of America Journal, vol.55, issue.1, p.34, 1991.
DOI : 10.2136/sssaj1991.03615995005500010006x

J. I. Drever and L. L. Stillings, The role of organic acids in mineral weathering, Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol.120, issue.1-3, p.167, 1997.
DOI : 10.1016/S0927-7757(96)03720-X

J. Schubert, The Use of Ion Exchangers of the Determination of Physical-Chemical Properties of Substances, Particularly Radiotracers, in Solution. I. Theoretical, The Journal of Physical and Colloid Chemistry, vol.52, issue.2, p.340, 1948.
DOI : 10.1021/j150458a006

M. L. Meyer and P. R. Bloom, Boric and Silicic Acid Adsorption and Desorption by a Humic Acid, Journal of Environment Quality, vol.26, issue.1, p.63, 1997.
DOI : 10.2134/jeq1997.00472425002600010010x

G. S. Pokrovski and J. Schott, Experimental study of the complexation of silicon and germanium with aqueous organic species: implications for germanium and silicon transport and Ge/Si ratio in natural waters, Geochimica et Cosmochimica Acta, vol.62, issue.21-22, p.3413, 1998.
DOI : 10.1016/S0016-7037(98)00249-X

E. Östhols, A. Manceau, F. Farges, and L. Charlet, Adsorption of Thorium on Amorphous Silica: An EXAFS Study, Journal of Colloid and Interface Science, vol.194, issue.1, p.10, 1997.
DOI : 10.1006/jcis.1997.5065

P. W. Schindler and W. Stumm, In Aquatic Surface Chemistry, p.83, 1987.

H. Geckeis, R. Klenze, and J. I. Kim, Solid-Water Interface Reactions of Actinides and Homologues : Sorption onto Mineral Surfaces, Radiochimica Acta, vol.87, issue.1-2, p.13, 1999.
DOI : 10.1524/ract.1999.87.12.13

M. Del-nero, B. Mad, G. Bontems, and A. Clément, Adsorption of Neptunium(V) on Hydrargilite, Radiochimica Acta, vol.76, issue.4, p.219, 1997.
DOI : 10.1524/ract.1997.76.4.219
URL : https://hal.archives-ouvertes.fr/in2p3-00005111

J. A. Davis and D. B. Kent, Surface complexation modeling in aqueous geochemistry In: Reviews in Mineralogy, Mineral-Water Interface Geochemistry, p.225, 1990.

P. W. Schindler, Co-adsorption of metal ions and organic ligand: formation of ternary surface complexes In: Reviews in Mineralogy , Mineral-Water Interface Geochemistry, p.291, 1990.

D. E. Yates and T. W. Healy, The structure of the silica/electrolyte interface, Journal of Colloid and Interface Science, vol.55, issue.1, p.9, 1976.
DOI : 10.1016/0021-9797(76)90003-5

J. D. Wells, L. K. Koopal, and A. De-keizer, Monodisperse, nonporous, spherical silica particles, Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol.166, issue.1-3, p.171, 2000.
DOI : 10.1016/S0927-7757(99)00462-8

V. Neck and J. I. Kim, Solubility and hydrolysis of tetravalent actinides, Radiochimica Acta, vol.89, issue.1, 2001.
DOI : 10.1524/ract.2001.89.1.001

C. Moulin, B. Amekraz, S. Hubert, and V. Moulin, Study of thorium hydrolysis species by electrospray-ionization mass spectrometry, Analytica Chimica Acta, vol.441, issue.2, p.269, 2001.
DOI : 10.1016/S0003-2670(01)01084-4
URL : https://hal.archives-ouvertes.fr/in2p3-00010423

W. Hummel, M. A. Glaus, and L. R. Van-loon, Trace metal-humate interactions. II. The ???conservative roof??? model and its application, Applied Geochemistry, vol.15, issue.7, p.975, 2000.
DOI : 10.1016/S0883-2927(99)00100-6

J. I. Kim, D. S. Rhee, G. Buckau, and A. Morgenstern, Americium(III)-Humate Interaction in Natural Groundwater: Influence of Purification on Complexation Properties, Radiochimica Acta, vol.79, issue.3, p.173, 1997.
DOI : 10.1524/ract.1997.79.3.173

J. I. Kim and C. M. Marquardt, Chemical Reaction of Np(V) with Humic Colloids in Groundwater: Influence of Purification on the Complexation Behaviour, Radiochimica Acta, vol.87, issue.3-4, p.105, 1999.
DOI : 10.1524/ract.1999.87.34.105

P. Reiller, V. Moulin, and E. Giffaut, On the influence of humic substances upon radionuclide speciation: A sensitivity study, Appl. Geochem

V. Moulin and C. Moulin, Radionuclide speciation in the environment: a review, Radiochimica Acta, vol.89, issue.11-12, p.773, 2001.
DOI : 10.1524/ract.2001.89.11-12.773

P. Panak, R. Klenze, and J. I. Kim, A study of ternary complexes of Cm(III) with humic acid and hydroxyde or carbonate in neutral pH range by time resolved laser fluorescence spectroscopy, Radiochim. Acta, vol.74, p.141, 1996.

M. Morgenstern, R. Klenze, and J. I. Kim, The formation of mixedhydroxo complexes of Cm(III) and Am(III) with humic acid in the neutral pH range, Radiochim. Acta, vol.88, issue.7, 2000.

D. G. Kinniburgh, W. H. Van-riemsdijk, L. K. Koopal, M. Borkovec, M. F. Benedetti et al., Ion binding to natural organic matter: competition, heterogeneity, stoichiometry and thermodynamic consistency, Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol.151, issue.1-2, p.147, 1999.
DOI : 10.1016/S0927-7757(98)00637-2

W. Hummel, M. Glaus, A. Van-loon, and L. R. , Complexation of Radionuclides with Humic Substance: The Metal Concentration Effect, Radiochimica Acta, vol.84, issue.2, p.111, 1999.
DOI : 10.1524/ract.1999.84.2.111

M. A. Glaus, W. Hummel, and L. R. Van-loon, Trace metal???humate interactions. I. Experimental determination of conditional stability constants, Applied Geochemistry, vol.15, issue.7, p.953, 2000.
DOI : 10.1016/S0883-2927(99)00099-2

D. L. Parkhurst, PhreeqC. A computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations, U.S. Geological Survey Water-Resources Investigations, pp.95-4227, 1996.

P. Zeh, K. R. Czerwinski, and J. I. Kim, Speciation of Uranium in Gorleben Groundwaters, Radiochimica Acta, vol.76, issue.1-2, p.37, 1997.
DOI : 10.1524/ract.1997.76.12.37

M. A. Glaus, B. Baeyens, M. Lauber, T. Rabung, and L. R. Van-loon, Water-extractable organic matter from opalinus clay: effect on sorption and speciation of Ni(II, Eu(III) and Th(IV). Paul Scherrer Institut, 2001.

K. R. Czerwinski, J. I. Kim, D. S. Rhee, and G. Buckau, Complexation of trivalent actinides ions (Am 3+ ,C m 3+ ) with humic acids: the effect of ionic strength, Radiochim. Acta, vol.72, p.179, 1996.