The modeling of reactive solute transport with sorption to mobile and immobile sorbents. 1. Experimental evidence and model development
Knabner P, Totsche KU, Kögel-Knabner I (1996)
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 1996
Journal
Publisher: American Geophysical Union (AGU)
Book Volume: 32
Pages Range: 1611-1622
Journal Issue: 6
DOI: 10.1029/95WR02994
Abstract
Modeling carrier-influenced transport needs to take into account the reactivity of the carrier itself. This paper presents a mathematical model of reactive solute transport with sorption to mobile and immobile sorbents. The mobile sorbent is also considered to be reactive. To justify the assumptions and generality of our modeling approach, experimental findings are reviewed and analyzed. A transformation of the model in terms of total concentrations of solute and mobile sorbents is presented which simplifies the mathematical formulations. Breakthrough data on dissolved organic carbon are presented to exemplify the need to take into account the reactivity of the mobile sorbent. Data on hexachtorobiphenyl and cadmium are presented to demonstrate carrier-introduced increased mobility, whereas data on anthracene and pyrene are presented to demonstrate carrier- introduced reduced mobility. The experimental conditions leading to the different findings are pointed out. The sorption processes considered in the model are both equilibrium and nonequilibrium processes, allowing for different sorption sites and nonlinear isotherms and rate functions. Effective isotherms, which describe the sorption to the immobile sorbent in the presence of a mobile sorbent and rate functions, are introduced and their properties are discussed.
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Germany (DE)How to cite
APA:
Knabner, P., Totsche, K.U., & Kögel-Knabner, I. (1996). The modeling of reactive solute transport with sorption to mobile and immobile sorbents. 1. Experimental evidence and model development. Water Resources Research, 32(6), 1611-1622. https://doi.org/10.1029/95WR02994
MLA:
Knabner, Peter, Kai Uwe Totsche, and Ingrid Kögel-Knabner. "The modeling of reactive solute transport with sorption to mobile and immobile sorbents. 1. Experimental evidence and model development." Water Resources Research 32.6 (1996): 1611-1622.
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