José Luis Rodríguez Gallego

José Luis Rodríguez Gallego
University of Oviedo | UNIOVI · Institute of Natural Resources and Territorial Planning (INDUROT)

Professor

About

164
Publications
35,592
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2,992
Citations
Additional affiliations
April 2004 - present
University of Oviedo
Position
  • Professor (Associate)

Publications

Publications (164)
Article
Benzo[a]pyrene (BaP) is a hazardous compound for human health and for environmental compartments. Its transfer and deposition through the atmosphere affects soil quality. In this context, we quantified the content of BaP and other Polycyclic Aromatic Hydrocarbons (PAHs) in the soils of a prominent Coal Region in Transition to test whether the soil...
Article
Full-text available
Industrial sites affected by anthropogenic contamination, both past and present-day, commonly have intricate pollutant patterns, and source discrimination can be thus highly challenging. To this goal, this paper presents a novel approach combining multivariate statistics and environmental forensic techniques. The efficiency of this methodology was...
Article
Full-text available
Zero valent iron nanoparticles (nZVI) attract interest given their effectiveness in soil remediation. However, little attention has been given to their impacts on plants. Likewise, although fertilizers are commonly used to enhance phytoremediation, their effects on As mobilization, resulting in potential toxic effects, require further study. In thi...
Article
Full-text available
Although different amendments have been used for the immobilization of metals and metalloids in contaminated soils, in most of them there are still important challenges that need to be faced in order to achieve an optimal result. In this work, a new material based on a carbon foam impregnated with goethite nanoneedles has been developed with the ai...
Article
The remobilization of metals accumulated in contaminated soils poses a threat to humans and ecosystems in general. Tracing metal fractionation provides valuable information for understanding the remobilization processes in smelting areas. Based on the difference between the isotopic system of Cd and Zn, this work aimed to couple isotope data and th...
Article
The remediation of legacy metal(loid) contaminated soils in-situ relies on the addition of [organic] amendments to reduce the mobility and bioavailability of metal(loid)s, improve soil geochemical parameters and restore vegetation growth. Two vermicomposts of food and animal manure waste origin (V1 and V2) were amended to an arsenic (As) and copper...
Article
Full-text available
Due to high mercury and arsenic toxicity, post-mining Hg-As-contaminated sites can cause varied and complex environmental and health problems. The aim of the study was to demonstrate the significance of the health risk assessment tool for remediation of post-mining soil contaminated with Hg and As. The aim was achieved via (1) assessing health risk...
Article
Present work focuses on the operational conditions for improving the degradation rates of Total Petroleum Hydrocarbons (TPHs) in contaminated soil from a machinery park were optimized at a microcosms scale along a 90-days incubation period. In this study, bioremediation strategies and an organic amendment have been tested to verify the remediation...
Article
Gold ores in skarns from the El Valle deposit (Asturias, Spain) are formed by two different Cu-Au skarn types, calcic and magnesian, in the Cambrian limestones and dolostones. In the Skarn, Se is an abundant trace element, and thus, during the mining activity was observed that the drained water presents anomalous Se concentrations. In this context,...
Article
Bacteria play crucial roles in the biogeochemical cycle of arsenic (As) and selenium (Se) as these elements are metabolized via detoxification, energy generation (anaerobic respiration) and biosynthesis (e.g. selenocysteine) strategies. To date, arsenic and selenium biomineralization in bacteria were studied separately. In this study, the anaerobic...
Conference Paper
Full-text available
Shewanella sp. O23S (Shewanella baltica) was isolated from a dissimilatory arsenate-reducing bacteria (DARB) microbial mat that inhabits the bottom sediments from an ancient gold mine (Złoty Stok, SW Poland) [1]. This strain is unusual in its versatile metabolism of selenium (Se) and arsenic (As), being capable of both detoxification and respiratio...
Article
Potentially Toxic Elements (PTEs) are contaminants with high toxicity and complex geochemical behaviour and, therefore, high PTEs contents in soil may affect ecosystems and/or human health. However, before addressing the measurement of soil pollution, it is necessary to understand what is meant by pollution-free soil. Often, this background, or pol...
Article
Full-text available
Mineral processing and metallurgy production centers may leave a far-reaching fingerprint of soil contamination. This scenario is particularly relevant in the mining district of Linares (Southern Spain), where former industrial sites are now dedicated to other land uses. Within this context, we selected five sectors of concern in Linares region, wh...
Article
Full-text available
Control of Potentially Toxic Elements (PTEs) in soil-polluted areas is needed to address the potential risk that pollution poses to public health and the environment. This study describes an innovative holistic methodology to assess the distribution of PTEs. It is based on the application of multi-variate statistical and geostatistical algorithms ,...
Article
Full-text available
Here we addressed the remediation of a soil severely contaminated by Cu, Cd, Pb and Zn. In this regard, we tested the capacity of magnesite and biochar, inorganic and organic soil amendments respectively, to reduce metal availability and improve soil properties. To this end, 1-kg pots containing the polluted soil were amended with either magnesite...
Article
Full-text available
Background Mercury (Hg) is recognized as one of the 10 most toxic elements in nature and is much more persistent in soils than in other environmental compartments. However, an effective, environmentally friendly, economical, and large-scale applicable technology for the remediation of soils contaminated by Hg has not yet been established. This stud...
Article
The treatment of metal‐laden industrial effluents by reverse osmosis is gaining in popularity worldwide due to its high performance. However, this process generates a polymetallic concentrate (retentate) stream in need of efficient post‐treatment prior to environmental discharge. This paper presents results on the bioremediation (in batch mode) of...
Preprint
Full-text available
Background: Mercury (Hg) is recognized as one of the 10 most toxic elements and is much more persistent in soils than in other environmental compartments. However, an effective, environmentally friendly, economical, and applicable at large-scale technology for the remediation of soils contaminated by Hg has not yet been established. This study eval...
Article
Mining and biomass waste were used to remediate a brownfield affected by As, Cd, Cu, Pb and Zn pollution in a pilot scale experiment, and a plant used for phytoremediation purposes was used as an indicator of possible toxicological effects. To carry out the experiments, plots in field conditions were treated with magnesite (mining waste), magnesite...
Conference Paper
Full-text available
Industry is constantly searching for methods to treat waste fluxes in an attempt to minimize its environmental impact. Reverse osmosis (RO) is an efficient treatment system, generating a permeate stream (purified water passing through the membrane) and a retentate stream, which concentrates the constituents rejected by the membrane. Currently, a ho...
Article
Full-text available
Phytoremediation of mine soils contaminated by potentially toxic elements (PTEs) requires the use of tolerant plants given the specific conditions of toxicity in the altered soil ecosystems. In this sense, a survey was conducted in an ancient Hg-mining area named “El Terronal” (Asturias, Spain) which is severely affected by PTE contamination (As, H...
Article
Full-text available
Phytomanagement techniques using native species allow the recovery of contaminated soils at low cost and circumvent the ecological risks associated with the use of non-native species. In this context, a paradigmatic brownfield megasite highly contaminated by As and Pb was sampled in order to analyze soil–plant interactions and identify plant specie...
Conference Paper
Full-text available
The determination of soil screening levels (SSLs) for contaminant elements is a key factor to calculate the Risk-Based Soil Screening Levels (RBSSL), which mark the threshold of ecotoxicological risk for human health. Despite of their importance in health studies, obtaining these values (SSLs) is often complex since they depend on multiple factors...
Article
Full-text available
Nanoscale Zero-Valent Iron (nZVI) is a cost-effective nanomaterial that is widely used to remove a broad range of metal(loid)s and organic contaminants from soil and groundwater. In some cases, this material alters the taxonomic and functional composition of the bacterial communities present in these matrices; however, there is no conclusive data t...
Chapter
Nanoremediation is a promising technology for soil reclamation. This approach consists of soil amendment with nanomaterials to immobilize inorganic pollutants by means of sorption, precipitation, or oxidation/reduction mechanisms. The core-shell structure of zero-valent iron nanoparticles supports several immobilization mechanisms, as demonstrated...
Article
Full-text available
In the context of soil pollution, plants suffer stress when exposed to extreme concentrations of potentially toxic elements (PTEs). The alterations to the plants caused by such stressors can be monitored by multispectral imagery in the form of vegetation indices, which can inform pollution management strategies. Here we combined geochemistry and re...
Article
In this work, we studied the soil washing of an As-polluted soil utilizing Wet High Intensity Magnetic Separation (WHIMS) after pre-treatment with nanoparticles. First, Fe-Ni nanoparticles of high saturation magnetization and appropriate size were synthesized. Soil samples were then pre-treated with a dose of nanoparticles before undergoing magneti...
Article
Full-text available
Here we tested the capacity of zero valent iron nanoparticles (nZVI) combined with two organic amendments, namely, compost and biochar, to immobilize metal(oid)s such as As, Cu, Pb, and Zn. In addition, the effects of the amendments on the development of Brassica juncea L., a plant widely used for phytoremediation purposes, were also examined. To p...
Article
Commercial magnetite nanoparticles (NPs) were used to immobilize As and organic pollutants, mainly PAHs, in a polluted soil. The composition, structure and morphology of the NPs were examined by means of electron microscopy, X-ray analysis, infrared spectroscopy, dynamic light scattering, thermogravimetric analysis, and magnetic property determinat...
Article
Full-text available
The demand for soils for recreational uses, gardening, or others in urban and periurban areas is increasing, and thus the presence of polluted technosols in these areas requires nature-based in situ remediation technologies. In this context, the capacity of three amendments, namely zero valent iron nanoparticles (nZVI), compost and a mixture of com...
Article
Full-text available
A bioslurry reactor was designed and used to treat loamy clay soil polluted with polycyclic aromatic hydrocarbons (PAHs). To this end, biostimulation alone, or combined with bioaugmentation with two bacterial strains (Rhodocccus erythropolis and Pseudomonas stuzeri) previously isolated from the polluted site, was applied. The PAH concentrations dec...
Preprint
Background Benzo[a]pyrene (BaP) is a hazardous compound for human health and for environmental compartments. Its transfer and deposition through the atmosphere affects soil quality. In this regard, soil screening levels are commonly used to monitor the degree of soil contamination. However, these thresholds are often established without considering...
Article
Full-text available
Arsenic is a potentially toxic element of concern for environmental compartments, and it is a frequent pollutant in many abandoned industrial sites. In this study, geochemical and hydrogeological tools were used to determine the long-term effects of As-rich pyrite ash disposal (83,000 m³ as estimated by geostatistical tools) in a brownfield located...
Article
Hg and As mining-metallurgy plants have severely impacted environmental compartments. La Soterraña site (northern Spain) has been previously studied in this context. However, here we used a novel multi-purpose forensic approach to examine accumulations not only of mining-metallurgical waste (volumes above 80,000 t) but also C&D waste as a repositor...
Article
Full-text available
The environmental forensics approach is most often applied in petroleum and fuel spill incidents, for which sophisticated chemical fingerprinting procedures have evolved. In cases in which pollutant discharges occur in settings with prior contamination, more care must be taken in source discrimination, requiring further advances in methodology. Add...
Conference Paper
The application of new learning methodologies in subjects related to engineering is required for students to develop their transversal skills, such as teamwork, creativity, problem-solving and the development of scientific thinking. On this account, Design Thinking was applied in the Mining Resources Prospecting module of the bachelor's degree in M...
Conference Paper
In the interest of applying active learning methodologies, the students of the Wastes and Polluted Soils module of the Master's degrees in Civil Engineering of the University of Oviedo participated in an applied activity following the case-method approach. Through interdisciplinary working groups, students had to outline a preliminary design with p...
Article
Full-text available
The capacity of graphene oxide nanoparticles (nGOx) to reduce or increase As and metals availability in polluted soils was compared with that of zero valent iron nanoparticles (nZVI). The nanomaterials used in this study were characterized by X-ray techniques, CHNS-O analysis, dynamic light scattering, and microscopy procedures such as atomic force...
Article
Samples from 13 beaches along the northern Spanish coast, a region with a history of heavy industries, were first screened to identify signs of pollution. High concentrations of Hg and Ba on Vega beach were found, both elements belong to the fluorite ore paragenesis, mined in the surroundings. Samples of beach and fluvial sediments, and nearby soil...
Article
Full-text available
Background An essential requisite for controlling and monitoring mercury in the environment is to identify its species in different types of soils and sediments, as this will help not only to establish its mobility in the environment and ecosystem and the degree of its toxicity, but also to establish the source of contamination. The objective of th...
Article
The distribution of Potentially Toxic Elements is a major concern in environmental science since an exposure to high concentrations may affect human, animal or plant health. In this regard, soils are highly exposed to the entrance of hazardous elements due to diffuse pollution. Thus giving rise to areas where the concentrations of certain pollutant...
Conference Paper
Evaluación de la contaminación por Hg y As en los suelos del entorno de la mina de La Soterraña (Asturias): Aproximación mediante geoquímica e imágenes dron multiespectrales Mercury and arsenic soil pollution assessment in the surroundings of La Soterraña mine (Asturias): A geochemical and multispectral imagery camera drone approach. Resumen: La ri...
Poster
Full-text available
Gold ores in skarns from the El Valle deposit (Asturias, Spain) are formed by two different Cu-Au skarn types, calcic and magnesian in the Cambrian limestones and dolostones. In the Skarn mineralization, Se is an abundant trace element. Due to the mining activity of the gold deposit, the drained water presents anomalous Se concentrations. The objet...
Article
Full-text available
The circular economy seeks to minimize the use of raw materials and waste generation. In this context, here we addressed the use of dunite mining tailings and subproducts to stabilize metal(oid)s in polluted soils. We first characterized the dunite mining tailings and subproducts, and a paradigmatic polluted soil in depth to determine their chemica...
Article
The inorganic content of the well-preserved 3.2-m record of Las Conchas bog (NW Spain), covering 8000 cal yr BP., was analysed. To study natural vs. human contributions, we applied an innovative approach, namely the sequential study of multivariate statistics (factor analysis followed by clustering of the factor score matrix) and enrichment factors...
Article
The capacity of two iron-based nanomaterials, namely goethite nanospheres (nGoethite) and zero valent iron nanoparticles (nZVI), to immobilize As in a polluted soil was evaluated and compared. The composition and morphology of the products were studied by energy dispersive X-ray analysis and transmission electron microscopy, while zeta potential an...
Article
Full-text available
Identifying inorganic and organic soil contaminants in urban brownfields can give insights into the adverse effects of industrial activities on soil function, ecological health, and environmental quality. Liberty State Park in Jersey City (N.J., USA) once supported a major rail yard that had dock facilities for both cargo and passenger service; a p...
Poster
Full-text available
Evaluar Evaluar la efectividad del uso de nZVI en un ensayo en campo para reducir la disponibilidad de As y Hg en el brownfield de El Terronal, así como su estabilidad en el tiempo. Objetivo Metodología Agradecimientos: proyectos CTM2016-78222-C2-1-(AEI/FEDER, UE), FP-16-NANOREMED (IMIDRA), LIFE+ project I+ DARTS (LIFE11 ENV/ES/000547), Grupo de in...
Conference Paper
Full-text available
Soil Screening Levels (SSLs) for contaminant elements are threshold values of reference, and they are required by many environmental studies and laws. SSLs are based on soil geochemical background data from sampling areas that are often extensive (regional SSLs). Regional SSLs are sometimes inappropriate for interpreting the true risk of pollution...
Article
Full-text available
En este trabajo se presentan las propuestas de estudiantes del Master de Ingeniería de Caminos de la Universidad de Oviedo para los baldíos industriales del eje fluvial del Nalón a su paso por Langreo. Los componentes principales del estudio son la regeneración ambiental de los terrenos contaminados mediante técnicas de fitorremediación y lavado de...
Article
In the last decade, several laboratory-scale experiments have shown the use of nanoscale zero-valent iron (nZVI) to be effective in reducing metal(loid) availability in polluted soils. The present study evaluates the capacity of nZVI for reducing the availability of As and Hg in brownfield soils at a pilot scale, and monitors the stability of the i...
Article
Soil screening levels (SSLs) are reference threshold values required by environmental laws, established based on soil geochemical background data from often-extensive sampling areas. Such areas are often inappropriate for interpreting the true risk of pollution in small areas, since they overlook local factors (e.g., geology, industry, and traffic)...
Article
The impact of mining activities on the environment is vast. In this regard, many mines were operating well before the introduction of environmental law. This is particularly true of cinnabar mines, whose activity has declined for decades due to growing public concern regarding Hg high toxicity. Here we present the exemplary case study of an abandon...
Article
Full-text available
Former industrial sites are now dedicated to other land uses in the Linares mining district. Here we selected five residential/farming areas (squares of 1 km2 each) and sought to evaluate the levels of contamination by Potentially Toxic Elements (PTEs) of the soils, and also to offer an insight into the threat these pollutants may pose to human hea...
Article
Full-text available
An environmental forensic study was developed in a former industrial area in southern Spain. Previous information about the site revealed arsenic and hydrocarbons affection exceeding soil screening levels. A full characterisation of arsenic affection was thus performed. In this regard, the bioavailable fractions, arsenic speciation and grain-size d...
Article
Full-text available
Soil washing is a remediation technology based on the adaptation of techniques habitually used in mineral processing to recover contaminants from polluted soils. Its main scope is the reduction of the total volume of contaminated soil, which could later be treated by biological, chemical, or thermal procedures. Since the contaminants are usually as...
Conference Paper
Full-text available
This work presents the results from evaluating the gases sorbed by coal samples extracted from the Falcón Basin (Miocene Cerro Pelado Formation, Venezuela). The aim of this work has been to obtain an initial experimental main value of the gas content per unit weight of high−volatile bituminous coals. A previous thermogravimetric analysis for establ...