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Impact of physical and chemical heterogeneities on optimal remediation design and costs
Date
2001-01-24
Author
Aksoy, Ayşegül
Metadata
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The impact of physical and chemical aquifer heterogeneities on optimal remediation design and costs is investigated by linking a genetic algorithm optimization library with a contaminant transport simulation model. Various levels of physical and chemical (sorption) aquifer heterogeneities are examined. In the first level, heterogeneity is limited to the hydraulic conductivity (K) field. Then systems with heterogeneity in both K and the distribution coefficient (Kd) are considered. The final level of heterogeneity combines variability in K, Kd, and the mass transfer rate (α). Consideration of Kd- and α-heterogeneities results in different policies and costs compared to cases where sorption heterogeneity is neglected. In general, the total pumping rate increases for systems with both chemical and physical heterogeneity as compared to systems with only physical heterogeneity. Although, an increase in K-heterogeneity decreases the impact of Kd- and α-heterogeneities on pumping rates and remediation costs, sorption heterogeneity can be as significant as the physical heterogeneity for the determination of effective remediation strategies.
Subject Keywords
Aquifers
,
Costs
,
Groundwater pollution
,
Optimization
,
Pollution
,
Pumps
,
Sorption
URI
https://hdl.handle.net/11511/86898
DOI
https://doi.org/10.1061/40569(2001)74
Conference Name
World Water and Environmental Resources Congress, 2001
Collections
Department of Environmental Engineering, Conference / Seminar
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A. Aksoy, “Impact of physical and chemical heterogeneities on optimal remediation design and costs,” presented at the World Water and Environmental Resources Congress, 2001, Orlando, Florida, USA, 2001, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/86898.