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 language | English (US) |
|---|---|
| Title of host publication | Proc 22 Annu Conf Integr Water Res Plan 21 Century |
| Pages | 891-894 |
| Number of pages | 4 |
| State | Published - 1995 |
| Event | Proceedings of the 22nd Annual Conference on Integrated Water Resources Planning for the 21st Century - Cambridge, MA, USA Duration: May 7 1995 → May 11 1995 |
Other
| Other | Proceedings of the 22nd Annual Conference on Integrated Water Resources Planning for the 21st Century |
|---|---|
| City | Cambridge, MA, USA |
| Period | 5/7/95 → 5/11/95 |
ASJC Scopus subject areas
- General Engineering