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SAFE USE OF WASTEWATER FOR AGRICULTURE ING. ROBERTO J. CONTRERAS MARTINEZ

SAFE USE OF WASTEWATER FOR AGRICULTURE ING. ROBERTO J. CONTRERAS MARTINEZ PURIFICATION AND TREATMMENT MANAGER. JUNE 2013. MÉXICO.

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SAFE USE OF WASTEWATER FOR AGRICULTURE ING. ROBERTO J. CONTRERAS MARTINEZ

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  1. SAFE USE OF WASTEWATER FOR AGRICULTURE ING. ROBERTO J. CONTRERAS MARTINEZ PURIFICATION AND TREATMMENT MANAGER JUNE 2013

  2. MÉXICO • México is located in the northern hemisphere of the American continent between meridians 118°22´00´´ and 86°42´36´´ west longitude and between north latitudes 14°32´27´´ y 32°43´06´´ • It has a total surface of 1´964,375 Km2 • The coast line length of 11,122 Km, • 7,828 Km in the Ocean Pacific • 3,294 Km in the Gulf of Mexico and Caribbean See. • Mexico has a total population of 112´336,538 inhabitants, (2010). • Mexico has a great variety of climates, two thirds of the territory is considered arid or semiarid, with an annual rainfall of less than 500 millimeters per year, meanwhile southeastern Mexico is wet with an average rainfall of more than 2,000 millimeters per year.

  3. Regional contrast between develop and water availability Nationalaverage: 17,742 m3/hab/year (1950) Nationalaverage: 4 222 m3/hab/year (2010) Agua Población P.I.B. 31% 77% 87% 69% 23% 13%

  4. USES OF WATER 80,600 millions of m3

  5. MEZQUITAL VALLEY • “Mezquital” Valley is located at 60 km northeast from the Metropolitan Zone of the Mexico City in the Hidalgo State. • The wastewaters are used, without any treatment in a massive way, for forage crop irrigation or restricted. • Mexico City and the surrounding urban area are supplied with 64 m3/s, and generate a wastewater average caudal of 40 m3/s. • Are irrigated more than 85,000 has. Area of cultivation.

  6. Theeviction of the ZMCM works are: • Tajo de Nochistongo • Great channeldrain • Deepdrainage • Tunneltransmitter West • 200 pumpingplants • Emittertunnel Eastern • EMITTER TUNNEL EASTERN : • Lengthof (TEO): 62 Km • Diameter: 7 m • Depthfrom: 26 – 150 m to • dislodgeover: 150 m3/s. • Itwillstrengthenthesystemmaindrain of theareaMetropolitan of the Valley of Mexico (ZMVM) forthebenefit of its22 millionpeople.

  7. PTAR ATOTONILCO, HGO. • Startedtheconstruction of thetreatmentplant in Atotonilco, withaninstalledcapacity of 23 m3/s, secondarybiologicaltreatment and 12 m3/s chemicaltreatment. Benefits: • In 2014 will be the 57.5% of thewastewatergenerated in the Valley of Mexico. • • Irrigationwithtreatedwastewater of more than 50 thousandhectares in the Mezquital Valley, increasingitsagriculturalpotential. • • Clean up thebodies and surfacechannelsthatreceivewastewater. • • Improvethesanitaryconditions of more than 300 thousandpeople living in thearea.

  8. The City of San Luis Potosí is located in the central part of the Country, 363 km north-eastern far from Mexico City; it is 1,860 meters above the level sea in a semiarid zone. • It has a population of 1,040 million and pluvial precipitationis 400 mm/year, theaquifer of the Valley of San Luis Potosí isexploiteduponextracted 113 Mm3/year; rechargeis 79 Mm3/year, and thedeficitis 34 Mm3/year. • Generated 81.1 Mm3/yearand itis a flow of theorder of 50.75 Mm3/yearby7 treatmentplants. • Fromthe total treatmentwastewater9.12 Mm3/year are reusedforrecreationalpurposes 14.83 Mm3/year in theindustry and 26.8 Mm3/year in agricultureforirrigation of 2,120 has. SISTEMA TENORIO – VILLA DE REYES, S.L.P.

  9. PTAR TANK TENORIO, S.L.P. • Thisplant has anaveragetreated 1,050 l/s flow. • Reuse: • 450 l/s in theindustryforcoolingtowers • 600 l/s in irrigationforagriculture. • Changeof crops • Preventionof diseases • Reduce exploitation of theaquifer

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