| Abstract: | Spatial and temporal profiles of Ph and concentrations of toxic metals in streams affected by acid mine drainage are the result of the interplay of physical and biogeochemical processes. This paper describes a reactive solute transport model that provides a physically and thermodynamically quantitative interpretation of these profiles. The model combines a transport module that includes advection-dispersion and transient storage with a geochemical speciation module based on MINTEQA2. Input to the model includes stream hydrologic properties derived from tracer-dilution experiments, headwater and lateral inflow concentrations analyzed in field samples, and a thermodynamic database. Simulations reproduced the general features of steady-state patterns of observed pH and concentrations of aluminum and sulfate in St. Kevin Gulch, an acid mine drainage stream near Leadville, Colorado. These patterns were altered temporarily by injection of sodium carbonate into the stream. A transient simulation reproduced the observed effects of the base injection. |
| Genre: | Article |
| ProdID: | 70018538 |
| Citation Author: | Broshears, R. E. |
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| Citation End Page: | 204 |
| Citation Issue: | 1-2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Water, Air, and Soil Pollution |
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| Citation Number Of Pages: | 10 |
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| Citation Publisher: | Kluwer Academic Publishers |
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| Citation Search Results Text: | Reactive solute transport in acidic streams; 1996; Article; Journal; Water, Air, and Soil Pollution; Broshears, R. E. |
| Citation Start Page: | 195 |
| Citation Volume: | 90 |
| Citation Year: | 1996 |
| Type: | citation/reference |
| Text: | Reactive solute transport in acidic streams; 1996; Article; Journal; Water, Air, and Soil Pollution; Broshears, R. E. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1007/BF00619281 |
| Date Other: | Mon, 1 Jan 1996 00:00 -0600 |
| Publisher: | Kluwer Academic Publishers |
