Groundwater assessment and environmental impact in the abandoned mine of Kettara (Morocco)

Moyé, Julien; Picard-Lesteven, Tanguy; Zouhri, Lahcen; Amari, Khalid; Hibti, Mohamed; Benkaddour, Abdelfattah

doi:10.1016/j.envpol.2017.07.044

Cited by 66 publications

(15 citation statements)

References 24 publications

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“…The oxidation of pyrite (FeS 2 ) plays a central role in the production of acid mine drainage. This mineral represents most of the sulfide phases (Moyé et al 2017). This oxidation is a series of precipitation, absorption, complexation, chelation, and redox progress (Belén et al 2012; Blowes et al 2003; Marquez et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Trace metal element pollution of soil and water resources caused by small-scale metallic ore mining activities: a case study from a sphalerite mine in North China

Lei

et al. 2019

Environ Sci Pollut Res

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Trace metal element contamination in mining areas is always a huge environmental challenge for the global mining industry. In this study, an abandoned sphalerite mine near the Yanshan Mountains was selected as subject to evaluate the soil and water contamination caused by small-scale mining. The results show that (1) Pearson correlation matrix and principal component analysis (PCA) results reveal that Zn, Cu, Cd, and Pb were greatly affected by the operation of mines, especially mineral tailings. The contents of trace metal elements decrease with the increase of the distance from the mining area. Zinc, Pb, and Cd were discovered in almost all soil samples, and Zn accounted for about 80% of pollution of the topsoil. (2) The trace element pollution levels in the topsoil of the three villages were ranked as follows: Cd > Cu > Pb~Zn. The potential ecological risk of farmland around the mine ranges from lower to higher, with Cd being the most harmful. (3) Human health risk assessment results show that trace elements in the mining area pose obvious non-carcinogenic health risks to children while the risks to adults are not equally obvious. The carcinogenic risk of Cd and Cr is within a safe range and does not pose an obvious cancer risk to the population. Electronic supplementary material The online version of this article (10.1007/s11356-019-05703-z) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Trace metal element pollution of soil and water resources caused by small-scale metallic ore mining activities: a case study from a sphalerite mine in North China

Lei

et al. 2019

Environ Sci Pollut Res

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“…Uranium mines, as the Osamu Utsumi Mine in Poços de Caldas-Brazil, are often associated with metal sulfides, minerals formed in more reducing conditions. As the water flows through fracture systems along the rock masses, the sulfide minerals are exposed to a more oxidizing environment, which favors the generation of acid mine drainage [4][5][6][7][8]. This phenomenon is characterized by a decreasing on pH due to S −2 oxidation into SO 4 −2 , whose contact with water produces sulfuric acid and, hence, increases the mobility of heavy metals (Cu, Ni, Cd, U, Mn and Zn) and radioactive elements sourced from rock masses and/or tailing piles [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Structural analysis and geophysical survey for hydrogeological diagnosis in uranium mine, Poços de Caldas (Brazil)

et al. 2019

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The implementation of open pit mines promotes alterations on geological and hydrogeological processes, mainly on natural streamflow patterns. Drainage system tries to reach its equilibrium due to modification on slope profiling water flows through new pathways contributing to erosion and leaching processes. One of the impacts related to mining is the generation of acid mine drainage (AMD), which occurs as a product of sulfide minerals exposure to oxidizing environment and, in contact to water, favors the formation of sulfuric acid. Thus, a low pH promotes a higher mobility of heavy metals and radionuclides, which become a source of contamination. In order to understand the hydrogeological dynamic in rock masses that contribute to AMD production, this paper aimed to subsidize mitigation programs in fractured aquifers using a structural analysis and geophysical survey for the reduction of acid drainage generation. The study was carried at the four mining fronts that compose the mine pit of Osamu Utsumi Mine, named according to its cardinal position (NE, SE, SW and NW). Local structural survey indicated that fractures attitudes are mainly N20E/80NW and N55 W/75NE, with intersections between them. Evidence of water flows, like whitish kaolinite stains and small vegetation growth, was identified in fronts NE, SW and NW, in addition to water springs at the base of the slopes. The flows arise mainly in areas that coincide to intersection between fracture systems in an orthogonal arrangement and the fracturing pattern indicated that at all fronts most of the fracture planes project into the open pit area, which favor the water channeling to the center of the mine as a water catchment basin. Moreover, the relationship between the persistence and spacing among the discontinuities enables a good hydraulic conductivity within the rock masses and the water upwelling on the slopes surface. The geophysical data corroborated with the structural survey, which identified the fracture planes as linear structures associated with low resistivity zones. DC resistivity method showed a strong contrast between saturated zones, differing natural from acidic water. Delimitation of linear features in the inversion models indicated that water flows are channeled through fracture planes and promote an expressive weathering process inside the rock masses, observed at depths of up to 70 m.

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“…Las actividades industriales de Explotación de minas y canteras, así como de Agricultura ganadería, caza y silvicultura, son altamente dependientes de la disponibilidad de recursos naturales; además, impactan negativamente al ambiente a través de la contaminación del aire, suelo y agua tanto superficial como subterránea. Por su parte, estos dos sectores industriales presentan una mayor generación de múltiples tipos de residuos, un mayor agotamiento de los recursos no renovables, alta generación de ruido, así como un impacto negativo generalizado en los hábitats naturales y al paisaje [8]- [10], por lo anterior, es congruente que sean los sectores industriales con valores promedio de SIA-F más altos.…”

Section: Resultados Y Discusiónunclassified

Impacto ambiental de diferentes sectores productivos de Costa Rica

Arce-Villalobos¹,

Arias-Castro²,

Hernández-Ugalde³

et al. 2021

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La Evaluación de Impacto Ambiental (EIA) consiste en la identificación y valoración de los impactos potenciales de proyectos respecto a los componentes físicos, químicos, biológicos, culturales, económicos y sociales, con el fin de que mediante la planificación y la correcta toma de decisiones se desarrollen aquellas actuaciones más compatibles con el ambiente. Además, representa un mecanismo acondicionado a la realidad global actual, que permite el control y seguimiento de la gestión ambiental de forma integral. A pesar de ser una temática ampliamente desarrollada, en múltiples ocasiones su aplicación no es comprendida a plenitud ante la pluralidad de sectores productivos que contempla su aplicación, entre otros aspectos. En Costa Rica, el proceso de evaluación ambiental lo fiscaliza la Secretaría Técnica Nacional Ambiental (SETENA); entre los instrumentos de fiscalización se dispone del formulario ambiental denominado “Formulario D-1”, en el cual, el futuro desarrollador de la obra, actividad o proyecto evidencia los impactos ambientales y sociales a generar por parte de la actividad a desarrollar. En el presente trabajo de investigación se desarrolló una evaluación del impacto ambiental de diferentes sectores productivos en Costa Rica a partir de formularios D-1 ingresados a la SETENA durante los años 2018 y 2019. En total se analizaron 125 formularios de futuros proyectos a desarrollar. El sector industrial denominado “Explotación de minas y canteras” presenta el mayor valor de impacto ambiental (271,27). Por su parte el sector industrial con menor valor de impacto ambiental (94,64) corresponde a “Electricidad, gas y agua”.

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Groundwater assessment and environmental impact in the abandoned mine of Kettara (Morocco)

Cited by 66 publications

References 24 publications

Trace metal element pollution of soil and water resources caused by small-scale metallic ore mining activities: a case study from a sphalerite mine in North China

Trace metal element pollution of soil and water resources caused by small-scale metallic ore mining activities: a case study from a sphalerite mine in North China

Structural analysis and geophysical survey for hydrogeological diagnosis in uranium mine, Poços de Caldas (Brazil)

Impacto ambiental de diferentes sectores productivos de Costa Rica

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