Surface hydrochemical dynamic in an artificial lake with anthropic impact: La Purísima reservoir, Central Mexico

Lecomte, Karina Leticia; Pasquini, Andrea I.; Manjarrez-Rangel, Cinthya Soledad; Puy-Alquiza, María Jesús; Segoviano-Garfias, José J. N.; Zanor, Gabriela Ana

doi:10.1007/s10661-022-09773-4

Cited by 3 publications

(6 citation statements)

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“…The input for the modeling included pH, temperature, and mean cation and anion concentration. The inverse geochemical modeling was carried out for the experimental leached samples as well as for realworld samples of the water (Carrillo-Chávez et al 2003;Chaparro et al 2020;Lecomte et al 2022;Ramírez-Ramírez 2021). For the real-world model, the initial solutions were lake water composition upstream in the basin (water reservoir), and the final solution was Purisima Lake (dam).…”

Section: Leaching Column Test and Geochemical Modelingmentioning

confidence: 99%

“…In GRB, rocks, sediments, and tailings show high concentrations of metal(loid)s (Carrillo-Chávez et al 2003;Lecomte et al 2022;Mendoza-Amézquita et al 2006;Morton-Bermea et al 2004;Ramírez-Ramírez 2021;Rueda-Garzon et al 2022). Thus, the weathering process wears to rocks and tailing mining, releasing, and transporting metal(loid)s to water, soil, and sediment.…”

Section: Hydrogeochemical Evolution By the Inverse Modelmentioning

confidence: 99%

“…The results of the column leaching tests were modeled with PHREEQC (Figure 5). In addition, water data in the basin reported by Ramírez-Ramírez (2021) and Lecomte et al (2022) were also used to model and compare the experimental conditions with the real ones.…”

Section: Hydrogeochemical Evolution By the Inverse Modelmentioning

confidence: 99%

“…In GRB, upstream predominates the weathering of silicates, carbonates, and sulfides that release metal(loid)s in freshwaters. The pH variation allows the sorption and precipitation of some of them (Ni, Pb, and Zn) together with calcite, illite, nontronite, and oxyhydroxides (Table 7), causing a decrease in downstream (Bravo-Covarrubias et al 2020;Carrillo-Chávez et al 2003;Lecomte et al 2022).…”

Section: Hydrogeochemical Evolution By the Inverse Modelmentioning

confidence: 99%

“…The GMD is localized upstream of the Guanajuato River Basin (GRB). In the GRB, anomalous metal(loid)s concentrations have been reported in rocks, tailing mining, stream and dam sediments, overbank deposit, freshwater, and groundwater (Bravo-Covarrubias et al 2020;Cano-Rodriguez et al 2000;Carrillo-Chávez et al 2003;Chaparro et al 2020;Esparza-Claudio 2011;García-Arreola et al 2018;Hernández-Silva et al 2005;Lecomte et al 2022;Mendoza-Amézquita et al 2006;Miranda-Avilés et al 2009, 2012Morton-Bermea et al 2004;Piña González et al 2022;Ramos-Arroyo et al 2013;Rueda-Garzon et al 2022). This study aimed to determine the HM&Ms concentrations in soils, investigate the potential HM&Ms leach-ing processes, model interaction between soil and water, compare experimental and field data on HM&Ms leaching, and contribute new data to better understand the hydrogeochemical evolution of the GRB.…”

Section: Introductionmentioning

confidence: 99%

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Heavy metal and metalloids concentration and mobility in soil leaching into a basin impacted by 500 years of mining in central Mexico: Column experiments and geochemical modeling

Rueda-Garzón,

Carrillo-Chavez,

Miranda-Avilés

et al. 2023

Preprint

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The Guanajuato mining district has had mining operations for over 500 years. This mining district is one of the most important Ag-Au producers in Mexico and is among the largest deposits in the world. The natural enrichment of heavy metals and metalloids (HM&Ms) in the Guanajuato River basin (GRB), and the different mineral recovery methods used over time have caused relatively high concentrations in stream sediments and soil, posing a potential risk to the environment. This study conducted column experiments to evaluate the potential of HM&Ms leaching from the soil into the groundwater upstream of GRB. The column experiment results were modeled (inverse modeling) in PHREEQC in order to analyze the soilwater interaction. Inverse modeling determined that pH, redox conditions, mineralogy phases, and cation exchange control the mobility of HM&Ms. Soils in GRB have the potential to release Zn > Cu > Pb > Ni in low concentrations (<1mg/L) due to the stability of mineral phases and alkaline pH. However, soil leachates can precipitate clays and oxyhydroxides, which, at alkaline pH, increase their retention capacity, controlling the leachability of HM&Ms. Clay minerals present the major phases in the leaching processes, followed by carbonates and sulfides. This research demonstrated that mineralogy is the main factor influencing the availability of HM&Ms in the groundwater of the Guanajuato River Basin.

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Section: Leaching Column Test and Geochemical Modelingmentioning

confidence: 99%