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| 活性汚泥法モデル (Activated Sludge Model)× | 地下水汚染モデリング× | |
|---|---|---|
| 分野 | 環境工学 | 環境工学 |
| 系統 | Process / pipeline | Process / pipeline |
| 提唱年≠ | 1976 | 1988 |
| 提唱者≠ | Marais and Ekama | USGS and hydrogeology researchers |
| 種類≠ | mathematical simulation pipeline | numerical simulation pipeline |
| 原典≠ | Henze, M., Grady, C. P. L., Gujer, W., Marais, G. V. R., & Matsuo, T. (1987). Activated Sludge Model No. 1. IAWQ, Scientific and Technical Report No. 1. link ↗ | Fetter, C. W., Boving, T. B., & Kreamer, D. K. (2018). Contaminant Hydrogeology (3rd ed.). Waveland Press. ISBN: 978-1478625315 |
| 別名≠ | ASM, conventional activated sludge, suspended growth treatment | groundwater transport, contaminant plume modeling, subsurface flow and transport, GWHC modeling |
| 関連≠ | 5 | 3 |
| 概要≠ | The Activated Sludge Model (ASM) is a standardized mathematical framework for simulating biological wastewater treatment processes, developed by the International Association on Water Quality (IAWQ) beginning in 1987. It represents the transport, transformation, and fate of organic matter and nutrients in suspended-growth treatment systems. ASM is widely used to design, optimize, and predict the performance of wastewater treatment plants under varying influent and operational conditions. | Groundwater contamination modeling is a quantitative approach to predict the migration of dissolved and suspended contaminants (chemical spills, landfill leachate, petroleum, radionuclides) through subsurface aquifers and toward receptors (drinking water wells, surface water bodies, ecosystems). Developed systematically in the 1980s–1990s by the USGS and hydrogeologists, these models couple flow equations (Darcy's law) with advection-dispersion transport and geochemical reactions to forecast contaminant arrival times and plume extent. |
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