Model for estimation of chlorinated solvent release from waste disposal sites
| Autor: | Mark D. Otis, Robert G. Baca, John C. Walton, Arthur S. Rood |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
Environmental Engineering
Aqueous solution Waste management Chemistry Health Toxicology and Mutagenesis Diffusion Environmental engineering Waste Disposal Sites Chlorinated solvent Pollution Decomposition Mass transfer Vadose zone Environmental Chemistry Degradation (geology) Waste Management and Disposal |
| Zdroj: | Journal of Hazardous Materials. 21:15-34 |
| ISSN: | 0304-3894 |
| DOI: | 10.1016/0304-3894(89)85074-5 |
| Popis: | A mathematical model was developed to estimate the release and transport of chlorinated solvents from hazardous waste sites located in the vadose zone. The model formulation accounts for container degradation, interphase mass transfer, waste decomposition, soil temperature effects on physical and chemical properties of the waste, and mass transport through geologic media. Aqueous, nonaqueous, and vapor transport were considered. Calculations indicate the dominant transport mechanism is vapor diffusion to the surface and vadose zone. Model predictions also indicate an annual cycle of release caused by changes in soil temperature. The model was applied to an existing waste facility containing five chlorinated solvents. Reasonable agreement was found between model calculations and field data. |
| Databáze: | OpenAIRE |
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