Change search
ReferencesLink to record
Permanent link

Direct link
Hyporheic exchange of reactive and conservative solutes in streams - tracer methodology and model interpretation
2003 (English)In: Journal of Hydrology, ISSN 0022-1694, E-ISSN 1879-2707, Vol. 278, no 04-jan, 153-171 p.Article in journal (Refereed) Published
Abstract [en]

A transient storage model is evaluated using results from a tracer experiment, where a conservative and a reactive tracer (H-3 and Cr-51(III)) were injected simultaneously and monitored in stream water and bed sediment. About 76% of the chromium was lost from the stream water on the reach 30 km downstream of the injection point directly after the passage of the pulse in the flowing water. The bed sediment hosted the main part of the retained chromium. The time to washout 75% of the maximum solute uptake in the sediment was similar to 85 times longer for chromium than for tritium (i.e. similar to 45 days). It was possible to describe the sediment-water exchange with a diffusive flux formulation that could be evaluated using tritium breakthrough curves in the stream water or the tritium inventory breakthrough curves in the sediment. This experiment revealed further that observations of chromium concentrations in the sediment were essential for the quantifying of sorption properties, as it was not possible to catch accurately the time scale of sorption within the duration of the breakthrough curves in the stream water. There was a clear need for a rate-limited description of the sorption of chromium in the sediment. We found that a first-order kinetic description of the sorption process could acceptably describe the breakthrough curves in both the stream water and the bed sediment.

Place, publisher, year, edition, pages
2003. Vol. 278, no 04-jan, 153-171 p.
Keyword [en]
sorption kinetics, sediment, stream, tracer experiment, transient storage, transient storage, nonsorbing solutes, natural-waters, riffle stream, mass-transfer, bed forms, transport, parameters, sorption, zone
URN: urn:nbn:se:kth:diva-22673DOI: 10.1016/s0022-1694(03)00140-9ISI: 000184198300012OAI: diva2:341371
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Wörman, Anders
In the same journal
Journal of Hydrology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 84 hits
ReferencesLink to record
Permanent link

Direct link