Acumulación de metales pesados en Calamagrostis rigida (Kunth) Trin. ex Steud. (Poaceae) y Myriophyllum quitense Kunth (Haloragaceae) evaluadas en cuatro humedales altoandinos del Perú

Jara-Peña, Enoc; Gómez, Claudio; Terreros, Haydeé Montoya; Santillan, Tito Sánchez; Tapia, Liliana; Cano, Noema; Dextre, Abigail

doi:10.22497/arnaldoa.242.24210

Cited by 8 publications

(6 citation statements)

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“…This capacity is reflected in our results for phytoremediation of the average soil samples with the Sarcocornia neei species, with 99.8% effectiveness being achieved for Pb remediation. The remediation percentage we obtained is significantly higher than that achieved in relevant other studies [ 43 ] and with Jara-Peña [ 44 ], obtaining 60% Pb in accumulator plants in the first year of treatment.…”

Section: Resultscontrasting

confidence: 77%

Pb-Contaminated Soil from Quintero-Ventanas, Chile: Remediation Using Sarcocornia neei

Meza-Ramírez

Espinoza-Ortiz

Ramírez-Verdugo

et al. 2021

The Scientific World Journal

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A phytoremediation process for lead (Pb) under laboratory conditions on contaminated soil from the Puchuncaví commune, Valparaíso Province, Chile, was carried out. It analyzed the phytoremediation potential of Sarcocornia neei (Lag.) M.A. Alonso and M.B. Crespo. The plants were propagated beforehand and extracted from the El Yali wetland, a RAMSAR 878 site in Valparaíso. Soil fertility and heavy metal concentration analyses of composite samples were conducted, complying with established protocols and standard methodology for chemical and metal analyses. These analyses were conducted in the Soil Analysis Laboratory of the Pontificia Universidad Católica de Valparaíso. The aim was to analyse not only the tissue of plants from both areas but also the soil to identify the changes in different conditions in which the plants live. To determine the type of inferential analysis to be performed, a normality test was applied; however, it was deemed unsuitable, and therefore, the contrasts were developed using nonparametric tests, particularly Wilcoxon. R project software was used in the tests, especially the RCommander package, together with the Jamovi free-license statistical spreadsheet application. The analyses results of the soil samples indicated high concentrations of heavy metals, predominantly Pb at a concentration of 77.97 mg/kg, acidic soil indicated by pH between 5.77 and 6.38, low levels of electrical conductivity, and the presence of organic matter. A phytoremediation efficiency of 99% on soil samples was achieved. Preliminary results were compared against international regulations on the concentration of metals in soil. The histological sections showed that individual plants probably adapted to their environmental conditions.

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Section: Resultscontrasting

confidence: 77%

Pb-Contaminated Soil from Quintero-Ventanas, Chile: Remediation Using Sarcocornia neei

Meza-Ramírez

Espinoza-Ortiz

Ramírez-Verdugo

et al. 2021

The Scientific World Journal

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“…The UN "in resolution 64/ 292 approved in 2010 establishes that water and sanitation are basic rights for life and for the dignity of all people." In addition, it is established that industry, mining and agriculture are the main polluters of water resources [5].…”

Section: Introductionmentioning

confidence: 99%

Advances in the Adsorption Capacity, Rupture Time and Saturation Curve of Natural Zeolites

Montaño¹,

Montaño²

2023

Heavy Metals - Recent Advances

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Reviewing the bibliography, it is found that the amount of heavy metals that natural zeolites are capable of adsorbing under normal conditions is 30%, +/- 10, 20, with respect to the weight of the zeolite used as an adsorbent material in the best cases, highlighting the family of clipnoptilolite, it has been proven that with physical/chemical modifications, as well as, in non-normal conditions of pressure and temperature, superior adsorption results can be achieved. The present study analyzes the capacity of a certain family of natural zeolites that, by presenting a different chemical configuration, that is, instead of having 1,2,3 interchangeable bases such as Ca, K, Mg, has a compound such as (O Mg) and therefore a reorganized unit cell with the capacity to adsorb heavy metals up to 80% with respect to the total weight that is used as adsorbent material, this would be a new parameter to be considered in the adsorption of heavy metals by natural zeolites. According to the scientific literature, it is precisely the amount of exchangeable bases, diameter, and the weight and size of the zeolite pore that largely determines the adsorption of heavy metals.

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“…This atypical resistance pattern was related to the presence of overexpressed efflux pumps in 95.2% of the isolates, with only 9 out of 200 (4.5%) isolates having MICs 32 mg/L after the use of an efflux pump inhibitor [75]. Of note, the presence of heavy metals such as arsenic, chrome, cadmium, lead, mercury or zinc, and other toxics such as polycyclic aromatic hydrocarbon has been widely described in different Peruvian areas [113,114,115,116]. The presence of ESBLs was reported in 3 studies [62,65,66], which were not considered in the analysis of AMR because the samples were directly screened for ESBL-producing Enterobacteriaceae.…”

Section: Livestock Recovered Escherichia Colimentioning

confidence: 99%

Antibiotic susceptibility among non-clinical Escherichia coli as a marker of antibiotic pressure in Peru (2009–2019): one health approach

Castillo

Espinoza

Chaves

et al. 2022

Heliyon

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Acumulación de metales pesados en Calamagrostis rigida (Kunth) Trin. ex Steud. (Poaceae) y Myriophyllum quitense Kunth (Haloragaceae) evaluadas en cuatro humedales altoandinos del Perú

Cited by 8 publications

References 0 publications

Pb-Contaminated Soil from Quintero-Ventanas, Chile: Remediation Using Sarcocornia neei

Pb-Contaminated Soil from Quintero-Ventanas, Chile: Remediation Using Sarcocornia neei

Advances in the Adsorption Capacity, Rupture Time and Saturation Curve of Natural Zeolites

Antibiotic susceptibility among non-clinical Escherichia coli as a marker of antibiotic pressure in Peru (2009–2019): one health approach

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