@article{838286641f914a6389b94bacc6b6baf7,
title = "New methodology for optimal operation of soil aquifer treatment systems",
abstract = "A new methodology is presented in this article for computing the optimal operation of soil aquifer treatment systems. The mathematical problem is stated as a discrete-time optimal control problem to maximize infiltration subject to various physical and operation constraints. The methodology is based upon solving the discrete-time optimal control problem using a successive approximation linear quadratic regulator interfaced with a simulator. The unsaturated flow model HYDRUS is modified to simulate the water content distribution, the infiltration process, and the draining process. A penalty function method is used to treat the bound constraints on the water content and the cycle time. Sample problems are given to illustrate the capability of the model to solve the optimal operation of soil aquifer treatment systems.",
keywords = "Infiltration, Optimal control, Soil aquifer treatment",
author = "Guihua Li and Zongwu Tang and Larry Mays and Peter Fox",
note = "Funding Information: This article resulted from work on research project at Arizona State University titled {\textquoteleft}Soil Treatabilities Pilot Studies to Design and Model a Soil Aquifer Treatment System{\textquoteright}. This overall project has been performed by a team consisting of faculty and graduate students from Arizona State University, University of Arizona, and University of Colorado and is being funded by the cities of Phoenix, Mesa, Scottsdale, Tempe, Glendale and Youngstown, Arizona, the Salt River Project, Tucson Water, the USDA Water Conservation Laboratory, the American Water Works Association Research Foundation (AWWARF), the Water Environment Research Foundation (WERF), and the National Water Resources Institute (NWRI). The Arizona Department of Water Resources has also partially funded the effort reported in this article. The work reported herein was performed at ASU with the results being the findings of the authors and not necessarily the funding sources. Copyright: Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.",
year = "2000",
doi = "10.1023/A:1008130706862",
language = "English (US)",
volume = "14",
pages = "13--33",
journal = "Water Resources Management",
issn = "0920-4741",
publisher = "Springer Netherlands",
number = "1",
}