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Cost minimization of a WWTP using an augmented lagrangian pattern search based solver

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Bibliographic Details
Summary:This paper describes a derivative-free method that aims to solve an optimization problem arising from the mathematical formulation of an activated sludge system in which the objective is to minimize the investment and operation costs. The method relies on an augmented Lagrangian technique that uses a pattern search for solving bound constrained subproblems.
Main Authors:Espírito Santo, I. A. C. P.
Other Authors:Fernandes, Edite Manuela da G. P.; Araújo, M. Manuela; Ferreira, Eugénio C.
Subject:Activated sludge system Secondary settler Pattern search method Augmented lagrangian
Year:2007
Country:Portugal
Document type:conference paper
Access type:open access
Associated institution:Universidade do Minho
Language:English
Origin:RepositóriUM - Universidade do Minho
Description
Summary:This paper describes a derivative-free method that aims to solve an optimization problem arising from the mathematical formulation of an activated sludge system in which the objective is to minimize the investment and operation costs. The method relies on an augmented Lagrangian technique that uses a pattern search for solving bound constrained subproblems.