| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Federal Institute for Geosciences and Natural Resources (BGR), Stilleweg 2, 30655 Hannover, Germany;
Dep. of Geoecology, Technical Univ. Carolo-Wilhelmina, Langer Kamp 19 c, 38106 Braunschweig, Germany.
* Corresponding author (Sven.Altfelder{at}bgr.de).
ABSTRACT
Nonsingular sorption-desorption behavior of organic compounds has been frequently observed, but it remained unexplained in many cases. In this study we investigate the role slow kinetics may play in nonsingular sorption. Sorption-desorption experiments were carried out with the herbicide chortoluron (3-(3-chloro-p-tolyl)-1,1-dimethylurea) and two soils—a silt loam and a loamy sand—using three different batch techniques. The first technique is the classic decantrefill method where part of the supernatant is replaced with solute-free solution. The second technique is similar;, however, part of the supernatant is replaced with solute containing solution instead. In the third technique desorption is induced by successive dilution of the supernatant with time. Nonsingular sorption of chlortoluron was observed independent of the method. We fitted a kinetic two-stage model to the data of the first technique to estimate sorption rate parameters. With this set of parameters, the model predicted the data measured with the second and third technique well. The agreement indicates that nonsingularity phenomena observed by means of the different techniques may be explained by slow sorption kinetics. The ability of the model to describe nonsingular sorption-desorption data was further tested on data sets taken from the literature where nonsingularity remained unexplained or was explained by other causes different from slow kinetics. All phenomena observed in the different studies could readily be explained by the two-stage model.
This article has been cited by other articles:
|
|
 |
|
  Q. Huang, F. Li, R. Xiao, Q. Wang, and W. Tan Characterization of Organo-Mineral Aggregates of Chernozem in Northeast China and Their Adsorption Behavior to Phenanthrene Soil Sci. Soc. Am. J., January 25, 2008; 72(2): 362 - 369. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
Y. Drori, Z. Aizenshtat, and B. Chefetz Sorption-Desorption Behavior of Atrazine in Soils Irrigated with Reclaimed Wastewater Soil Sci. Soc. Am. J., September 29, 2005; 69(6): 1703 - 1710. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. Sander, Y. Lu, and J. J. Pignatello A Thermodynamically Based Method to Quantify True Sorption Hysteresis J. Environ. Qual., May 11, 2005; 34(3): 1063 - 1072. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Thiele-Bruhn, T. Seibicke, H.-R. Schulten, and P. Leinweber Sorption of Sulfonamide Pharmaceutical Antibiotics on Whole Soils and Particle-Size Fractions J. Environ. Qual., July 1, 2004; 33(4): 1331 - 1342. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. Bergkvist and N. Jarvis Modeling Organic Carbon Dynamics and Cadmium Fate in Long-Term Sludge-Amended Soil J. Environ. Qual., January 1, 2004; 33(1): 181 - 191. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 F. Prata, F. Prata, A. Lavorenti, J. Vanderborght, P. Burauel, and H. Vereecken Miscible Displacement, Sorption and Desorption of Atrazine in a Brazilian Oxisol Vadose Zone J., November 1, 2003; 2(4): 728 - 738. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
Q. Wu, G. Riise, and R. Kretzschmar Size Distribution of Organic Matter and Associated Propiconazole in Agricultural Runoff Material J. Environ. Qual., November 1, 2003; 32(6): 2200 - 2206. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
Y. Ran, W. Huang, P. S. C. Rao, D. Liu, G. Sheng, and J. Fu The Role of Condensed Organic Matter in the Nonlinear Sorption of Hydrophobic Organic Contaminants by a Peat and Sediments J. Environ. Qual., November 1, 2002; 31(6): 1953 - 1962. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Gamst, T. Olesen, H. De Jonge, P. Moldrup, and D. E. Rolston Nonsingularity of Naphthalene Sorption in Soil: Observations and the Two-Compartment Model Soil Sci. Soc. Am. J., November 1, 2001; 65(6): 1622 - 1633. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Altfelder, T. Streck, M. A. Maraqa, and T. C. Voice Nonequilibrium Sorption of Dimethylphthalate--Compatibility of Batch and Column Techniques Soil Sci. Soc. Am. J., January 1, 2001; 65(1): 102 - 111. [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 | ||||
| Soil Science Society of America Journal | Journal of Plant Registrations | The Plant Genome | |||
