Título

Hydrogeochemistry and water-rock interactions in the urban area of Puebla Valley aquifer (Mexico).

Autor

EDITH ROSALBA SALCEDO SANCHEZ

SOFIA ESPERANZA GARRIDO HOYOS

MARIA VICENTA ESTELLER ALBERICH

MANUEL MARTÍNEZ MORALES

ARIADNA OCAMPO ASTUDILLO

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Materias

hydrogeochemistry - ([0375-6742]) water rock interactions - ([0375-6742]) Puebla - ([0375-6742]) Groundwater - ([0375-6742]) Saturation index - ([0375-6742]) BIOLOGÍA Y QUÍMICA - (CTI)

Resumen o descripción

The urban area of Puebla Valley aquifer is seated in Puebla City and neighbor municipalities. Puebla is the fourth

largest city in Mexico, where there are significant industrial zones and a large population. Water needs are

almost exclusively met by groundwater, which has brought intense exploitation of groundwater resources and

water quality degradation. The present study investigates the hydrogeochemical changes in groundwater, particularly

focuses on the chemical changes produced by upwelling mineralized water. These concentrations may

represent potential risks to the health of the population.

The groundwater presented five types of families Ca-HCO3, Mg-HCO3, Mix-HCO3, HCO3-Ca-SO4 and Ca-SO4.

The high concentrations of sulphates, calcium and magnesium are reflected in high TDS and Total Hardness. The

samples collected showed detectable concentrations of F−, Fe, Mn, Ba, Sr, Cu, Zn, B and Li. The limitations for its

use as drinking water are given by the high values of TDS, sulphates, total hardness and Mn.

Geochemical modeling using Geochemist's Workbench (GWB) and PHREEQC software enabled the computation

of the saturation index of mineral phases with ions in solution and speciation ions. Groundwater was

initially in equilibrium with calcite; however, due to the changes in hydrogeological conditions, gypsum and

dolomite are being dissolved until new equilibrium conditions are met. The additional calcium and carbonate in

the water causes calcite to become oversaturated and to precipitate. Evidence of dedolomitization reactions and

common ion effect is illustrated by concurrent increases in calcium and magnesium concentrations in the

groundwater.

Editor

Journal of Geochemical Exploration

Fecha de publicación

10 de julio de 2017

Tipo de publicación

Artículo

Recurso de información

http://hdl.handle.net/20.500.11799/79988

Fuente

0375-6742

Idioma

Inglés

Audiencia

Estudiantes

Investigadores

Repositorio Orígen

REPOSITORIO INSTITUCIONAL DE LA UAEM

Descargas

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