Optimización en el diseño de un sistema de tratamiento de aguas residuales integrado por tres lagunas de estabilización

Article presents a mathematical model for the optimization of a lagoon system composed of three lagoons: anaerobic, facultative and maturation. The mathematical model of optimization aims at minimizing the area occupied by the lagoon system, and has as restrictions the water quality in the effluent:...

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Bibliographic Details
Published inTecnología y ciencias del agua Vol. 8; no. 4; pp. 139 - 155
Main Authors Cortés-Martínez, Facundo, Treviño-Cansino, Alejandro, Espinoza-Fraire, Arturo Tadeo, Sáenz-López, Agustín, Alcorta-García, María Aracelia, González-Barrios, José Luis, Martínez-Rojas, Rodolfo, de-la-Cruz-Acosta, Francisco Javier
Format Journal Article
LanguageEnglish
Spanish
Published Jiutepec Instituto Mexicano de Tecnologia de Agua 01.08.2017
Instituto Mexicano de Tecnología del Agua
Subjects
Biochemical oxygen demand
Coliforms
Constrictions
Discharge
Dispersion
dispersión, optimización, restricciones, sistema lagunar y tiempo de retención
Faecal coliforms
Fecal coliforms
Fluid dynamics
Lagoons
Mathematical models
Maturation
Optimization
Oxygen demand
Ponds
Retention time
Ripening
Screens
Systems design
Total oxygen demand
Wastewater
Wastewater discharges
Wastewater treatment
Water quality
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Summary:Article presents a mathematical model for the optimization of a lagoon system composed of three lagoons: anaerobic, facultative and maturation. The mathematical model of optimization aims at minimizing the area occupied by the lagoon system, and has as restrictions the water quality in the effluent: biochemical oxygen demand and the number of fecal coliforms; In addition, the dispersion (greater than or equal to 0.05) is restricted, in order to favor the dispersed flow in the facultative lagoon and the ripening lagoon. The changing variables in the optimization model are the following: retention time and number of screens, both facultative and maturation lagoons, and the long wide ratio for the anaerobic lagoon. A lagoon system design was performed, then the proposed mathematical model was applied. The results show a decrease of the area of 15.16 percent. The two studies comply with maximum permissible discharge limits, according to NOM-SEMARNAT-1996: quality of wastewater treated for discharge to receiving bodies.
ISSN:0187-8336
2007-2422
DOI:10.24850/j-tyca-2017-04-09