Processes controlling aqueous concentrations for riverine spills

Citation
De. Hibbs et Js. Gulliver, Processes controlling aqueous concentrations for riverine spills, J HAZARD M, 64(1), 1999, pp. 57-73
Citations number
31
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Environmental Engineering & Energy
Journal title
JOURNAL OF HAZARDOUS MATERIALS
ISSN journal
0304-3894 → ACNP
Volume
64
Issue
1
Year of publication
1999
Pages
57 - 73
Database
ISI
SICI code
0304-3894(19990101)64:1<57:PCACFR>2.0.ZU;2-8
Abstract
The aqueous concentrations of sparingly soluble compounds resulting from oi l, fuel, or chemical spills onto rivers predicted by numerical spill models contain an inherent degree of uncertainty due to the inaccuracies, or bias , of the user supplied rate coefficients. Methods for estimating the values of spreading, evaporation, dissolution, volatilization, and longitudinal d ispersion coefficients for a small sheltered river are reviewed, and the un certainties associated with each coefficient are estimated. The uncertainti es in the predicted aqueous concentrations are then computed using a concur rently developed riverine spill model for a simulated spill of 10,000 kg of jet fuel. The resulting aqueous concentrations were found to be most sensi tive to the saturation concentrations and the dissolution rates, moderately sensitive to the evaporation rates and longitudinal dispersion coefficient , and nearly completely insensitive to the volatilization coefficient. (C) 1999 Elsevier Science B.V. All rights reserved.