Colloidal properties of humic acids and spontaneous changes of their colloidal state under variable solution conditions

Soil Science

Volumn 164, Issue 11, 1999, Pages 814-824

  Tombácz, Etelka ^a  

^a UNIVERSITY OF SZEGED   (Hungary)

Author keywords

Coagulation; Fractionation; Humic acids; Surface activity; Surface complexation

Indexed keywords

CHEMICAL PROPERTY; COLLOID; HUMIC ACID;

EID: 0037650289     PISSN: 0038075X     EISSN: None     Source Type: Journal    
DOI: 10.1097/00010694-199911000-00005     Document Type: Article

References (27)

1. Allison, J. D., D. S. Brown, and K. J. Novo-Gradac. 1991. MINTEQA2/PRODEFA2, A geochemical assessment model for environmental systems. Version 3:0. Environmental Research Laboratory, Athens, GA.
2. Baber, R. A. (ed.). 1991. Organic Substances and Sediments in Water, Vo.l 1: Humics and Soils. Lewis, Chelsea, MI.
3. Beckett, R., Z. Jue, and J. C. Giddings. 1987. Determination of molecular weight distributions of fulvic and humic acids using flow field-flow fractionation. Environ. Sci. Technol. 21:289-295.
4. Bowles, E. C., R. C. Antweiler, and P. MacCarthy. 1989. Acid-base titration and hydrolysis of fulvic acid from the Suwannee river. USGS Open-File Report, 87-557. Denver, CO, pp. 209-227.
5. Buffle, J., P. Deladoey, and W. Haerdi. 1978. The use of ultrafiltration for the separation and fractionation of organic ligands in fresh waters. Anal. Chim. Acta 101:339-357.
6. 13C nuclear magnetic resonance. Environ. Sci. Technol. 32:719-725.
7. de Wit, J. C. M., W. H. van Riemsdijk, and L. K. Koopal. 1993. Proton binding to humic substances. 1. Electrostatic effects. Environ. Sci. Technol. 27: 2005-2014.
8. Ephraim, J. H., C. Pettersson, M. Nordén, and B. Allard. 1995. Potentiometric titrations of humic substances: Do ionic strength effects depend on the molecular weight? Environ. Sci. Technol 29: 622-628.
9. Everett, D. H. 1988. Basic Principles of Colloid Science. Royal Society of Chemistry, London.
10. Guetzloff, T. F., and J. A. Rice. 1994. Does humic acid form a micelle? Sci. Total Environ. 152:31-35.
11. Hayes, M. H. B., P. MacCarthy, R. L. Malcolm, and R. S. Swift. 1989. Structures of humic substances: The emergence of 'forms'. In Humic Substances II: In Search of Structure. M.H.B. Hayes, P. MacCarthy, R.L. Malcolm, and R.S. Swift (eds.). Wiley, Chichester, pp. 689-733.
12. Hayes, M. H. B., and R. S. Swift. 1990. Genesis, isolation, composition and structures of soil humic substances. In Soil Colloids and Their Associations in Aggregates. M.F. DeBoodt, M.H.B. Hayes, and A. Herbillon (eds.). Plenum, New York, pp. 245-305.
13. Hunter, R. J. 1989. Foundation of Colloid Science. Clarendon Press, Oxford, UK.
14. Kawahigashi, M., N. Fujitake, and T. Takahashi. 1996. Structural information obtained from spectral analysis (UV-VIS, IR, 1H-NMR) of particle size fractions in two humic acids. Soil Sci. Plant Nutr. 42:355-360.
15. Milne, C. J., D. G. Kinniburgh, J. C. M. de Wit, W. H. van Riemsdijk, and L. K. Koopal. 1995. Analysis of proton binding by a peat humic acid using a simple electrostatic model. Geochim. Cosmochim. Acta 59:1101-1112.
16. Newcombe, G., M. Drikas, S. Assemi, and R. Beckett. 1997. Influence of characterised natural organic material on activated carbon adsorption: I. Characterisation of concentrated reservoir water. Water Res. 31:965-972.
17. Rao, L., and G. R. Choppin. 1995. Thermodynamic study of the complexation of neptunium (V) with humic acids. Radiochimica Acta 69:87-95.
18. Ren, S. Z., E. Tombácz, and J. A. Rice. 1996. Dynamic light scattering from power-law polydisperse fractals: Application of dynamic scaling to humic acid. Phys. Rev. E. 53:2980-2983.
19. Shinozuka, N., and C. Lee. 1991. Aggregate formation of humic acids from marine sediments. Marine Chem. 33:229-241.
20. Sposito, G. 1992. Characterization of particle surface charge. In Environmental Particles, Vol. 1. J. Buffle and H.P. van Leeuwen (eds.). Lewis Publishing, Boca Raton, FL, pp.291-314.
21. Tombácz, E., E. Mádi, M. Szekeres, and J. A. Rice. 1999. Electrolyte induced spontaneous fractionation of polydisperse humate solutions. In Humic Substances Downunder: Understanding and Managing Organic Matter in Soils, Sediments and Water. Proceedings of IHSS-9, Adelaide, Australia, in press.
22. Tombácz, E., and E. Meleg. 1990. A theoretical explanation of the aggregation of humic substances as a function of pH and electrolyte concentration. Org. Geochem 15:375-381.
23. Tombácz, E., and I. Regdon. 1994. Humic substances as various colloidal systems. In Humic Substances in the Global Environment and Implications on Human Health. N. Senesi and T.M. Miano (eds.). Elsevier, Amsterdam, pp. 139-144.
24. Tombácz, E., J. A. Rice, and S. Z. Ren. 1997a. Effect of conformational changes on aggregation processes in humic acid solutions. In The Role of Humic Substances in the Ecosystems and in Environmental Protection. J. Drozd, S.S. Gonet, N. Senesi, and J. Weber (eds.). PTSH, Wroclaw, Poland, pp. 43-50.
25. Tombácz, E., J. A. Rice, and S. Z. Ren. 1997b. Fractal structure of polydisperse humic acid particles in solution studied by scattering methods. ACH Models Chem. 134:877-888.
26. Tombácz, E., S. Sipos, and F. Szántó. 1981. Surface activity and association properties of humic substances. Agrokémia Talajtan. 30:365-380.
27. Wershaw, R. L. 1993. Model for humus in soils and sediments. Environ. Sci. Technol. 27:814-816.