Megacity sewage creates socioeconomic dependence related to water availability in nearby areas, especially in countries with hydric stress. The present article studies the past, current, and future water balance progression of realistic scenarios from 2005 to 2050 in the Mezquital Valley, the receptor of Mexico City untreated sewage since 1886, allowing for agriculture irrigation under unsustainable conditions. The Water Evaluation and Planning System (WEAP) was used to estimate water demand and supply, and validation was performed by comparing results with outflow data from the Tula River. Simulated scenarios were (1st) steady-state based on inertial growth rates (2nd) transient scenario concerning the influence of forecasted climate change perturbations in surface water and hydric stress for 2050; and (3rd) the previous scenario appending scheduled actions, such as 36% reduction in imported wastewater and the startup of a massive Wastewater Treatment Plant, allowing for drip and sprinkler irrigation from the year 2030. The main results are as follows: (a) in the period 2005–2017, 59% of the agriculture depended on flood irrigation with megacity sewage; (b) the outcomes of water balance scenarios up to 2050 are presented, with disaggregated sectorial supply of ground and superficial water; (c) drip irrigation would reduce agriculture demands by 42% but still does not guarantee the downflow hydroelectric requirements, aggravated by the lack of wastewater supply from 2030. This research highlights how present policies compromise future Valley demands.
El objetivo de este trabajo fue estimar la generación y composición de residuos sólidos de las Colonias y Secciones del Municipio de Papalotla de Xicohténcatl, Tlaxcala; con la finalidad de generar información pertinente para la elaboración de planes y manejo de residuos sólidos en la zona de estudio. Los muestreos se realizaron del 22 al 29 de abril del 2019, en tres Colonias seleccionadas al azar (El Potrero, Xilotzinco y San Buenaventura). La estimación de la generación se realizó empleando el procedimiento descrito en la NMX-AA-61, con modificaciones en el muestreo, ya que se utilizaron los camiones recolectores de basura del área de Servicios Municipales. La caracterización se realizó de acuerdo con la NMX-AA-15-1985, que establece el método de cuarteo para residuos sólidos municipales. Con los valores promedio de la generación per cápita, se estimó la generación para el resto de las colonias para diferentes periodos de tiempo, de igual forma se procedió con los datos de composición de residuos sólidos. Los resultados mostraron que Papalotla, Tlaxcala se generan diariamente 44.3 toneladas de residuos, de los cuales 41% son materiales orgánicos, 20% plásticos, 14 % material biológico infeccioso, 12% cartón y papel, 7.5% vidrio y el resto metales.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.