title: Application of mathematical tools to improve the design and operation of activated sludge plants. Case study: the new WWTP of Galindo-Bilbao. Part I: Optimum design.
abstract: This paper presents a mathematical formulation for the optimum design of a new activated sludge WWTP. The WWTP optimum design problem has been formulated as a Mathematical Programming problem, which is solved through a nonlinear optimisation method. The plant model has been based on the ASM1. The minimum volume of the biological reactors and the minimum total cost (including construction and exploitation costs) have been considered as optimisation criteria. Some practical results are also included, using as a case study the design of the second stage of the Galindo-Bilbao WWTP.
authors.affiliation: Section of Environmental Engineering, CEIT, Po. de Manuel Lardizabal no. 15, 20018 San Sebastian, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Rivas
authors.forename: E
authors.initials: E
authors.lastname: Ayesa
authors.forename: A
authors.initials: A
authors.lastname: Galarza
authors.forename: A
authors.initials: A
authors.lastname: Salterain
mesh_terms: D000465:Algorithms; D019149:Bioreactors; D003198:Computer Simulation; D004867:Equipment Design; D008962:Models, Theoretical; D012722:Sewage; D013030:Spain; D014865:Waste Disposal, Fluid / Q000295:instrumentation* / Q000379:methods*; D018508:Water Purification / Q000295:instrumentation / Q000379:methods
chemical_list: D012722:Sewage