Sorption by soil

McBride M.B. Processes of heavy and transition metal sorption by soil mineral. In Interactions at the Soil Colloid-Soil Solution Interface, G.H. Bolt, M.F. De Boodt, M.H.B.Hayes, M.B. McBride, eds. NATO ASI Series (Series E Applied Sciences-Vol 190). Dordrecht, Netherlands Kluwer Academic Publishers, 1991. 

Huang W, Weber W (1997) A distributed reactivity model for sorption by soils and sediments. 10. Relationships between desorption, hysteresis, and the chemical characteristics of organic domains. Environ Sci Technol 31 2562-2569... 

Phenolic acids can be allelopathic but their presence in soil is ephemeral due to rapid degradation and/or sorption by soil particles (Inderjit 2004). Sorption of benzoic acid onto soil particles increased with concentration and it may explain the reason for the limited allelopathic effect of benzoic acid at concentrations often recorded in natural soil (Inderjit 2004). Microorganisms help to generate allelochemicals, but they may also modify toxic compounds into nontoxic compounds (Khanh et al. 2005). Allelochemicals are changed in composition and quantity during the residue decomposition. Allelopathy plays an important function in nutrient recycling (Rice 1984). 

As an example, Eq. (4.32) appears to describe phosphate sorption by soils quite well (see Fig. 4.7). 

Girvin, D.C. and Scott, A.J. Polychlorinated biphenyl sorption by soils measurement of soil-water partition coefficients at equilibrium, Chemosphere, 35 (9) 2007-2025. 1997. 

Earl, K. Syers, J. McLaughlin, R. (1979) Origin of the effect of citrate, tartrate and acetate on phosphate sorption by soils and synthetic gels. Soil Sci Soc. Am. J. 43 674-678... 

Mechanisms of phosphate sorption by soils and hydrous ferric oxide gel. J. Soil Sd. 

Gerstl, Z., Estimation of organic chemical sorption by soils , J. Contam. Hydrol, 6, 357-375 (1990). 

ASTM. 1987a. Standard test method for 24-h batch-type measurement of containment sorption by soils and sediments. ASTM, D 4646, American Soriety for Testing and Materials, Philadelphia, PA pp. 120-123. 

Weber, W.J., P.M. McGinley, and L.E. Katz. 1992. A distributed reactivity model for sorption by soils and sediments-1 Conceptual basis and equilibrium assessments. Environ. Sci. Technol. 26 1955-1962. 

Studies on sorption of triazines by individual soil constituents and by model sorbents have been very helpful in evaluating sorption mechanisms and in assessing the potential contribution of various constituents to triazine sorption by soils. However, intimate associations between organic substances, silicate clays, and oxyhydroxide materials modify the sorptive properties of the individual constituents. Associations between soil constituents influence soil properties - such as pH, specific surface area, and functional group availability - which in turn influence triazine sorption behavior. For instance, atrazine and simazine sorption behavior is different for synthetic mixtures of model soil... 

Although triazines are dominantly sorbed by soil organic matter, the clay minerals also make a substantial contribution to triazine sorption by soils. For instance, the organic and inorganic components comprise 11% and 89%... 

McBride, M.B. (1991) Processes of Heavy and Transition Metal Sorption by Soil Minerals. Kluwer Academic Publishers, Dordrecht. 

Briggs, G.G. (1969) Molecular structure of herbicides and their sorption by soils. Nature 223, 1288. 

American Society for Testing and Materials, Standard Test Method for 24-Hour Batch-Type Measurement of Containment Sorption by Soils and Sediments, Philadelphia, PA, 2001. 

Harter, R. D., and Naidu, R. (2001). An assessment of environmental and solution parameter impact on trace-metal sorption by soils. Soil Sri. Soc. Am.J. 65(3), 597-612. 

Parameters of Freundlich Equation for Metal Sorption by Soils in Presence and Absence of 400 mg C/l of DOM... 

These experiments have shown some practical implications of sorption of 4-amino-3,5,6-trichloropicolinic acid by soils and some of the factors that may be involved. Suggestions have been made as to possible mechanisms although additional work is needed to elucidate more precisely the nature of the sorption by soils. 

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