Development of methodology for the optimal operation of soil aquifer treatment systems

Zongwu Tang, Guihua Li, Larry Mays, Peter Fox

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

A new methodology is being developed for determining the optimal operation of soil aquifer treatment (SAT) systems. The new methodology is based upon mathematically describing the problem as a large-scale nonlinear discrete-time optimal control problem. The problem is solved by interfacing a nonlinear programming optimizer, a variably saturated flow model, and a water quality (transport) model. Because this discrete-time optimal control problem is nonlinear, both from the view point of the objective function and the simulator (transition) equations, differential dynamic programming (DDP), specifically a successive approximation linear quadratic regulator (SALQR) approach, is being interfaced with the simulator. In order to describe the unsaturated flow and transport mechanism, the HYDRUS model (Kool and van Genuchten, 1991) has been modified to incorporate the transport mechanisms to form the simulator. Once developed, the methodology will be applied to proposed SAT systems in Arizona. One application will be the proposed SAT site for the City of Phoenix 91st Avenue wastewater treatment plant.

Original languageEnglish (US)
Title of host publicationProc 22 Annu Conf Integr Water Res Plan 21 Century
Pages891-894
Number of pages4
StatePublished - 1995
EventProceedings of the 22nd Annual Conference on Integrated Water Resources Planning for the 21st Century - Cambridge, MA, USA
Duration: May 7 1995May 11 1995

Other

OtherProceedings of the 22nd Annual Conference on Integrated Water Resources Planning for the 21st Century
CityCambridge, MA, USA
Period5/7/955/11/95

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Tang, Z., Li, G., Mays, L., & Fox, P. (1995). Development of methodology for the optimal operation of soil aquifer treatment systems. In Proc 22 Annu Conf Integr Water Res Plan 21 Century (pp. 891-894)