Emerging Water Quality Issues along Rio de la Sabana, Mexico

Pineda-Mora, Daniel; Toribio-Jiménez, Jeiry; Leal-Ascencio, Teresa; Juárez-López, Ana Laura; González-González, Justiniano; Ruvalcaba-Ledezma, Jesús C.; Batista-García, Ramón Alberto; Arp, Paul A.

doi:10.4236/jwarp.2018.107035

Cited by 4 publications

(1 citation statement)

References 12 publications

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“…The accelerated urban development that the city has experienced in recent decades and the deficiencies in public services have caused serious water and soil contamination problems, leading to social and environmental vulnerability [52]. Acapulco Bay and the La Sabana River are exposed to contamination due to wastewater discharges and poor solid waste management [53,54]. To treat wastewater, the city has 18 WWTPs consisting of conventional treatment (activated sludge), managed by the local water agency.…”

Section: Tablementioning

confidence: 99%

Reuse of Treated Water from Municipal Treatment Plants in Mexico

Martínez-Orgániz¹,

Herrera-Navarrete²,

Pineda-Mora³

et al. 2024

Water Quality - New Perspectives

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Wastewater treatment plants (WWTPs) receive a wide variety of contaminants that cannot be eliminated or completely removed with current conventional methods. In this sense, the development and use of advanced technologies is a challenge in countries where wastewater sanitation is hardly a guarantee. However, the reuse of treated urban wastewater can function as an alternative to mitigate water pressure and, at the same time, guarantees water quality for potential reuse in agriculture, in the irrigation of landscape or urban green areas, but especially for aquifer recharge. Therefore, this chapter is focused on reviewing the current state of WWTPs in Mexico and the potential reuse of treated water.

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Section: Tablementioning

confidence: 99%

Reuse of Treated Water from Municipal Treatment Plants in Mexico

Martínez-Orgániz¹,

Herrera-Navarrete²,

Pineda-Mora³

et al. 2024

Water Quality - New Perspectives

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Diversity and Functions of Epilithic Riverine Biofilms

Pineda-Mora

Juárez-López

Toribio-Jiménez

et al. 2020

Water Air Soil Pollut

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This article relates epilithic dry- and wet-seasonal bacterial biofilm composition to water quality along Río de la Sabana near Acapulco, Mexico. Samples were taken from various locations including nearly pristine upland locations, adjacent to residential floodplain developments, and immediately upstream from an estuarine lagoon. Bacterial composition was identified through sequential DNA analysis at the phylum, class, order, and family levels, with most of these categorized as heterotrophs, autotrophs, denitrifiers, nitrogen fixers, pathogens, and/or potential bioremediators based on generalized literature-sourced assignments. The results were interpreted in terms of location by extent of effluent pollution, and by dry versus wet seasonal changes pertaining to biofilm composition, related bacterial functions, and the following water quality parameters: temperature, pH, dissolved oxygen, biological and chemical oxygen demand, fecal and total bacteria counts, methylene blue active substances, electrical conductivity, and nitrite, nitrate, ammonium, sulfate, and phosphate concentrations. It was found that epilithic bacterial biofilm diversity was richest during the wet season, was more varied in abundance along the upland locations, and was dominated by Proteobacteria and Bacteroidetes with bioremediation and pathogen functions along effluent-receiving river locations. Low-abundance families associated with anaerobic and denitrifying functions were more prevalent during the wet season, while low-abundance families associated with aerobic, N2-fixing and pH-elevating functions were more prevalent during the dry season.

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U-Pb Ages of Zircon Grains in the Playa Azul Beach Sediments, Guerrero State, Mexican Pacific

Armstrong-Altrin

2024

Journal of the Geological Society of India

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The mineralogy of bulk sediments, U-Pb ages and chemistry of 195 detrital zircon grains recovered in the Playa Azul beach, Mexican Pacific coast were performed to infer their provenance. The bulk sediments were composed of minerals like quartz, feldspar, titanite, plagioclase, zircon, and magnetite. The average Th/U ratio in zircon grains was ~ > 0.2, indicated an igneous origin. The chondrite normalized rare earth element (REE) patterns of zircons were depleted in low REE (LREE) and enriched in heavy REE (HREE), with positive cerium and negative europium anomalies, indicating a granitoid source. U-Pb ages of zircon grains revealed the predominance of Cenozoic and Mesozoic ages in samples PAC2 (~ 33.8 - 61.8 Ma, n = 90 and ~ 67 - 132 Ma, n = 10, respectively) and PAC19 (~ 0.1 -39.6 Ma, n = 55 and ~ 67 - 251 Ma, n = 20, respectively). Minor peaks were represented by Palaeozoic (n = 9) and Precambrian (n = 11) ages in PAC19. Zircon ages and their morphology indicated that they were mostly derived from the nearby terranes. The source terranes, which supplied Cenozoic zircons to the beach area were the coastal Cenozoic plutons and Cuicateco terrane. The Mesozoic zircons in the Playa Azul coastal sediments were derived from the Mixteca (Acatlan Complex), Guerrero, and Xolapa terranes, located along the Mexican Pacific coastal zone. The Proterozoic zircons were represented by the coastal Oaxacan Complex. In addition, the Arteaga Complex in the Guerrero State, adjacent to the playa Azul beach was the potential source for the Eocene zircons.

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Emerging Water Quality Issues along Rio de la Sabana, Mexico

Cited by 4 publications

References 12 publications

Reuse of Treated Water from Municipal Treatment Plants in Mexico

Reuse of Treated Water from Municipal Treatment Plants in Mexico

Diversity and Functions of Epilithic Riverine Biofilms

U-Pb Ages of Zircon Grains in the Playa Azul Beach Sediments, Guerrero State, Mexican Pacific

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