| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Environmental Sciences Div., Oak Ridge National Lab., P.O. Box 2008, Oak Ridge, TN 37831-6038
Chemistry Dep., Blackburn College, Carlinville, IL 62626
*Corresponding author.
ABSTRACT
The subsurface transport of inorganic and organic contaminants may be strongly related to the movement of dissolved organic carbon (DOC) through a soil profile. A variety of soil chemical and hydrologic factors control the mobility of the DOC, which may enhance or impede the transport of the associated contaminants. In this study, the sources of DOC adsorption on two proposed waste-site soils are defined, and the chemical mechanisms operative during the adsorption process are specified. Adsorption isotherms for the two soils determined at constant pH, ionic strength (I), and temperature indicated that DOC adsorption increased with increasing soil profile depth. Different adsorption capacities were exhibited by the two soils, however, which was related to their contrasting indigenous organic matter contents and mineralogies. The adsorption of DOC by the soils was not a function of solution I (I = 0.001 to 0.1 mol L–1 using NaCl); however, DOC adsorption was dependent on solution pH, with maximum adsorption occurring at 
4.5. Competitive ion-exchange studies using Na2SO4 as an ionic-strength adjuster suggested that a portion of the DOC was electrostatically bound to the soil via anion exchange. By using thermodynamic principles, the predominant mechanism of DOC retention by the soil was found to be physical adsorption driven by favorable entropy changes. This is supported by preferential adsorption of the hydrophobic organic solutes to the soil relative to the hydrophilic organic solutes.
Joint contribution from Oak Ridge National Lab., Univ. of Tennessee, Knoxville, and Blackburn College. This research was funded by the Subsurface Science Program of the Ecological Research Div., Office of Health and Environmental Research, U.S. Dep. of Energy under contract DE-AC05-84OR21400 with Martin Marietta Energy Systems, Inc. Publication no. 3354.
Received for publication February 6, 1989.
This article has been cited by other articles:
|
|
 |
|
  C. M. Hansel, S. Fendorf, P. M. Jardine, and C. A. Francis Changes in Bacterial and Archaeal Community Structure and Functional Diversity along a Geochemically Variable Soil Profile Appl. Envir. Microbiol., March 1, 2008; 74(5): 1620 - 1633. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 G. Communar and R. Keren Boron Adsorption by Soils as affected by Dissolved Organic Matter from Treated Sewage Effluent Soil Sci. Soc. Am. J., February 15, 2008; 72(2): 492 - 499. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 K. W. Goyne, H.-J. Jun, S. H. Anderson, and P. P. Motavalli Phosphorus and Nitrogen Sorption to Soils in the Presence of Poultry Litter-Derived Dissolved Organic Matter J. Environ. Qual., January 4, 2008; 37(1): 154 - 163. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 P. Cannavo, F. Lafolie, B. Nicolardot, and P. Renault Modeling Seasonal Variations in Carbon Dioxide and Nitrous Oxide in the Vadose Zone Vadose Zone J., August 24, 2006; 5(3): 990 - 1004. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. M. Jardine, M. A. Mayes, P. J. Mulholland, P. J. Hanson, J. R. Tarver, R. J. Luxmoore, J. F. McCarthy, and G. V. Wilson Vadose Zone Flow and Transport of Dissolved Organic Carbon at Multiple Scales in Humid Regimes Vadose Zone J., March 8, 2006; 5(1): 140 - 152. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. N. Houser, P. J. Mulholland, and K. O. Maloney Upland Disturbance Affects Headwater Stream Nutrients and Suspended Sediments during Baseflow and Stormflow J. Environ. Qual., January 5, 2006; 35(1): 352 - 365. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
W. A. R. N. Fernando, K. Xia, and C. W. Rice Sorption and Desorption of Ammonium from Liquid Swine Waste in Soils Soil Sci. Soc. Am. J., June 2, 2005; 69(4): 1057 - 1065. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. Mikutta, M. Kleber, K. Kaiser, and R. Jahn Review: Organic Matter Removal from Soils using Hydrogen Peroxide, Sodium Hypochlorite, and Disodium Peroxodisulfate Soil Sci. Soc. Am. J., January 1, 2005; 69(1): 120 - 135. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. U. Totsche and I. Kogel-Knabner Mobile Organic Sorbent Affected Contaminant Transport in Soil: Numerical Case Studies for Enhanced and Reduced Mobility Vadose Zone J., May 1, 2004; 3(2): 352 - 367. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. R. Moore and J. Turunen Carbon Accumulation and Storage in Mineral Subsoil beneath Peat Soil Sci. Soc. Am. J., March 1, 2004; 68(2): 690 - 696. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. X. Zhou, S. G. Zhou, and X. H. Zhan Sorption and Biodegradability of Sludge Bacterial Extracellular Polymers in Soil and Their Influence on Soil Copper Behavior J. Environ. Qual., January 1, 2004; 33(1): 154 - 162. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. A. N. Ussiri and C. E. Johnson Sorption of Organic Carbon Fractions by Spodosol Mineral Horizons Soil Sci. Soc. Am. J., January 1, 2004; 68(1): 253 - 262. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Lilienfein, R. G. Qualls, S. M. Uselman, and S. D. Bridgham Adsorption of Dissolved Organic Carbon and Nitrogen in Soils of a Weathering Chronosequence Soil Sci. Soc. Am. J., January 1, 2004; 68(1): 292 - 305. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
N. Han and M. L. Thompson Impact of Dissolved Organic Matter on Copper Mobility in Aquifer Material J. Environ. Qual., September 1, 2003; 32(5): 1829 - 1836. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Ben-Hur, J. Letey, W. J. Farmer, C. F. Williams, and S. D. Nelson Soluble and Solid Organic Matter Effects on Atrazine Adsorption in Cultivated Soils Soil Sci. Soc. Am. J., July 1, 2003; 67(4): 1140 - 1146. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G. U. Balcke, N. A. Kulikova, S. Hesse, F.-D. Kopinke, I. V. Perminova, and F. H. Frimmel Adsorption of Humic Substances onto Kaolin Clay Related to Their Structural Features Soil Sci. Soc. Am. J., November 1, 2002; 66(6): 1805 - 1812. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
F. Flores-Cespedes, E. Gonzalez-Pradas, M. Fernandez-Perez, M. Villafranca-Sanchez, M. Socias-Viciana, and M.D. Urena-Amate Effects of Dissolved Organic Carbon on Sorption and Mobility of Imidacloprid in Soil J. Environ. Qual., May 1, 2002; 31(3): 880 - 888. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. L. Mackowiak, P. R. Grossl, and B. G. Bugbee Beneficial Effects of Humic Acid on Micronutrient Availability to Wheat Soil Sci. Soc. Am. J., November 1, 2001; 65(6): 1744 - 1750. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
X. Huang and L. S. Lee Effects of Dissolved Organic Matter from Animal Waste Effluent on Chlorpyrifos Sorption by Soils J. Environ. Qual., July 1, 2001; 30(4): 1258 - 1265. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L.X. Zhou and J.W.C. Wong Effect of Dissolved Organic Matter from Sludge and Sludge Compost on Soil Copper Sorption J. Environ. Qual., May 1, 2001; 30(3): 878 - 883. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R.G. Qualls, B.L. Haines, W.T. Swank, and S.W. Tyler Soluble Organic and Inorganic Nutrient Fluxes in Clearcut and Mature Deciduous Forests Soil Sci. Soc. Am. J., May 1, 2000; 64(3): 1068 - 1077. [Abstract] [Full Text]
|
|
|
|
|
|
K. Kaiser and W. Zech Release of Natural Organic Matter Sorbed to Oxides and a Subsoil Soil Sci. Soc. Am. J., September 1, 1999; 63(5): 1157 - 1166. [Abstract] [Full Text]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Agronomy Journal | Crop Science | |||
| Journal of Natural Resources and Life Sciences Education |
Vadose Zone Journal | ||||
| Journal of Plant Registrations | Journal of Environmental Quality |
The Plant Genome | |||
