Uso eficiente, tecnología y gestión de agua para uso agrícola y consumo humano.

Capítulo de libroEn México, como en muchas partes del mundo, existe una grave presión por los recursos hídricos y cada vez son más escasos. Los ciclos han sido alterados fuertemente y la posibilidad de adquirir agua de buena calidad, con la adecuada distribución y en la cantidad requerida, se convierte en un reto.Fil: Cisneros-Almazán, Rodolfo. Universidad Autónoma de San Luis Potosí, Facultad de Ingeniería, Posgrado en Tecnología y Gestión del Agua, México. Email: [email protected]. .Fil: Díaz de León-Zavala, Oscar A. Universidad Autónoma de San Luis Potosí, Facultad de Ingeniería, Posgrado en Tecnología y Gestión del Agua, México. Email: [email protected]: Rodríguez-Cuevas, Clemente. Universidad Autónoma de San Luis Potosí, Facultad de Ingeniería, Posgrado en Tecnología y Gestión del Agua, México. [email protected]: Cisneros-Pérez, Rodolfo. Universidad Autónoma de San Luis Potosí, Facultad de Ingeniería, México. Email: [email protected]

Evaluation of the functionality of a constructed wetland system under semidesert and saline conditions

Objective: Evaluate the functionality of a constructed wetland used to treat the wastewater from a school by recording water inflow and outflow, in addition to the local conditions that affect its operation and compliance with environmentalregulations.Design/methodology/approach: Verification of the installation specifications; programmed measurements of the inflowoutflowwater balance and ambient temperature; and analysis of the salinity effect and wetland performance.Results: The high evapotranspiration at the site contributed to the decrease in the resident volume of water within the wetland, causing water stress to the vegetation, not complying with the regulation about the reduction/elimination of water pollutants.Study limitations/implications: The high daytime temperature significantly decreased the daily inflow volume of wastewater, even after adding the precipitation water, which affects the biological activity of the vegetation; therefore, the study was performed on half of the wetland surface. Thus, the wetland was unable to reduce the pollutants to safe levels.Findings/conclusions: The amount of recovered treated water is minimal. The inflow is five times lower than the designed flow of the construction. The weekly log was appropriate to observe fluctuations in the water balance and its effect on the vegetation within the wetland

Multi-Objective Approach for Determining Optimal Sustainable Urban Drainage Systems Combination at City Scale. The Case of San Luis Potosí (México)

A method for determining the optimal Sustainable Urban Drainage Systems (SUDs) combination at city scale is presented in this paper. A comprehensive set of SUDs categories comprising infrastructures aimed at either detaining and locally reusing or infiltrating precipitation are considered. A volumetric water balance is proposed for modelling hydrological processes in urban catchments. A multi-criteria approach combining a cost function and aims for both recharging aquifers and limiting runoff contribution to water courses is proposed to find the optimal SUDs combination. The water balance was run with each possible SUDs combination and the optimal set of SUDs was found. The method was applied to the Metropolitan Area of San Luis Potosí (Mexico). The optimal solutions in this case clearly promoted surface runoff detention and reuse over porous pavements and green roofs but they were sensitive to the considered costs. The SUD requirements to potential new urban developments for each catchment to comply with the original hydrological aims were also studied. The method requires customizing the cost function and using representative climatic data

El derecho a los derechos : infancias y adolescencias en Cuba

«El derecho a los derechos. Infancias y adolescencias en Cuba», constituye un título atractivo y seductor, en el que se ofrece al lector una mirada crítica a retos, problemáticas y cuestiones teórico-prácticas en la protección integral de los niños, niñas y adolescentes. Profesionalidad, originalidad, impronta y opinión personal de cada uno de los autores signaron la concepción del libro. De igual forma, un lenguaje apropiado que se sustrae de tecnicismos barrocos y excesivos para facilitar la lectura. Es una obra pensada desde la academia para impactar la realidad social. (...) engrosa los estudios sobre infancia y adolescencia existentes, es expresión de un saber especializado, tanto a nivel de la investigación científica como de la práctica y la gestión institucional estatal y de la sociedad civil. No busca ser meta, punto de llegada, al contrario, es una propuesta que invita permanentemente al debate, la discusión teórica, la reflexión, al examen de las formas de hacer y al pensamiento crítico. Dr. Yuri Pérez Martíne