Optimal Strategy for Aquifer Remediationby Fethi Ben Jemaa, Univ of California, Davis, United States,
Miguel A. Mariño, Univ of California, Davis, United States,
Abstract: A methodology for the restoration and cleanup of existing subsurface contaminated sites and for the contaminant of pollutants is developed. The remediation problem is posed as an optimization model where the rates and locations of pumping and injections are to be determined given the characteristics and extent of the contamination plume. The solution of the remediation problem is based on the econometric method of feedback control coupled with groundwater flow and transport simulations. The remediation plan is optimized so as to lower the contamination level to a prespecified level by the end ot the remediation period while minimizing the cost of pumping and treatment. The objective function of the optimal feedback control model consists of a successive minimization of a weighted sum of squared deviations of the achieved cleanup level at each stage from the desired target level of groundwater quality.
Subject Headings: Remediation | Groundwater pollution | Optimization models | Hydrologic models | Water quality | Water resources | Pollutants
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