Casi todas las actividades humanas contaminan: la industria, el comercio, la prestación de servicios, la agricultura, la ganadería, la vida doméstica, y todo en general. Además, todo requiere agua.
Las aguas residuales son las que, después de ser utilizadas, adquieren una composición variada de contaminantes: materia fecal, metales pesados, sólidos suspendidos, microorganismos patógenos, entre otros.
Debemos diseñar sistemas de tratamiento de aguas residuales que sean eficientes, funcionales y amigables con la naturaleza. Los sistemas de tratamiento mal diseñados no sólo representan grandes erogaciones de recursos públicos en su construcción, también son caros en su operación y mantenimiento. La mayoría terminan siendo abandonados.
El uso de recursos públicos debe estar siempre determinado por una cultura del respeto al medio ambiente, además de obedecer a una operación estratégica y transparente.
Ningún proyecto puede ir en contra de la naturaleza. Su correcta implementación, además de garantizar su funcionamiento, incide en la cultura ambiental y en la concientización sobre el descuido del medio ambiente. Si hacemos las cosas bien, todos viviremos mucho mejor.
¿De dónde viene el agua potable?
Lluvia 215 m3/s
Infiltración 19 m3/s
Evaporación 159 m3/s
Extracción sustentable 19 m3/s
Sobreextracción 40 m3/s
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Sistemas Cutzamala y Lerma 81.8m3/s – agua potable
Uso industrial 4.60 m3/s
Uso agrícola 12.60 m3/s
Uso suntuario 17.20 m3/s
Uso básico 30.00 m3/s
Fugas 17.4 m3/s – $30,000 mdp
¿De dónde provienen los contaminantes?
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El hogar
La industria
Los productos de consumo
Lo que se tira por la coladera
Los ríos Becerra y Tacubaya nacen en las montañas completamente limpios. Al llegar al Río La Piedad, los ríos ya están contaminados.
Contaminantes
Arsénico
Mercurio
Plomo
Cianuros
Cromo
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En temporada de lluvia, el agua también se contamina.
Drenaje de la Ciudad de México
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Agua residual
25.6 m3/s
Exportación de agua pluvial
20.0 m3/s
Agua residual
57.0m3/s
riega 80,000 Ha lo que equivale a:
240,000 ton de maíz al año, lo que es
45,000 consumidores de maíz anuales
El agua contaminada termina en los alimentos que consumimos.
