Characterization of treated wastewater from the Lagunera Region and its viability in agricultural irrigation
The use of treated wastewater of urban origin to irrigate agricultural soils destined for the production of fodder, is an alternative that favors the contribution of nutrients to the crop and minimizes pollution at the discharge sites; however, knowledge about the quality of this water is required. The objective of the study was to determine the effluent quality of four wastewater treatment plants (WWTP) of the Lagunera Region. Quality analyzes were carried out with the methodologies of various national standards. Samples to the treatment plants were carried out for eleven months (April 2014 to February 2015). The results show little monthly variation except for the LA1 plant. The tributaries of WWTP LO1 and LO2 have 22 to 25 mg L-1 of N, while WWTP LA1 has a higher concentration of P 4 mg L-1 and K 22 mg L-1, as long as the agronomic quality is questionable due to the high salinity and sodicity. With regard to microbiological parameters, all WWTP exceed the maximum permissible limits (MPL) of NOM-003-ECOL-1997 in terms of the content of helminth eggs, also exceeding MPL heavy metals, of NOM-001-SEMARNAT- 1996 in Pb and Cd.
Main Authors: | Galindo Pardo, Flor Valeria, Jacobo-Salcedo, María del Rosario, Cueto, José Antonio, Reta Sánchez, David Guadalupe, García Hernández, José Luis, Vázquez-Vázquez, Cirilo |
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Format: | Digital revista |
Language: | spa eng |
Published: |
Instituto Nacional de Investigaciones Forestales Agrícolas y Pecuarias
2020
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Online Access: | https://cienciasagricolas.inifap.gob.mx/index.php/agricolas/article/view/2084 |
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