Aquatic Systems Quality and Pollution Control II

A special issue of Geosciences (ISSN 2076-3263). This special issue belongs to the section "Hydrogeology".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 2897

Special Issue Editors


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Guest Editor
Polytechnic Institute of Castelo Branco|CERNAS|QRural and Institute of Earth Sciences (ICT), University of Évora, 6000-767 Castelo Branco, Portugal
Interests: data analysis; geostatistics; GIS; stochastic and numerical modeling; environmental systems; pollution control; natural hazards management; risk mapping
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Institute of Earth Sciences (IES), Department of Geosciences, School of Sciences and Technology, AmbiTerra Laboratory, University of Évora, 7000-645 Évora, Portugal
Interests: biogeochemistry and evaluation of the reuse of dam sediments; mining contamination; remediation methodologies; analytical geochemistry; behavior of metals and nutrients in aquatic systems
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Guest Editor
Department of Earth Sciences, University of Minho, 4710-057 Braga, Portugal
Interests: mine waters and mine wastes; acid mine drainage and acid rock drainage; environmental mineralogy; biomonitoring; environmental monitoring and modeling of mine sites
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Guest Editor
Department of Earth Sciences, University of Minho, Braga, Portugal
Interests: environmental geochemistry; surface and groundwater management; environmental impact of mining activities; water and soil contamination, risk assesment
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Special Issue Information

Dear Colleagues,

The accumulation of potentially hazardous or toxic chemicals in the sediments of freshwater and transitional aquatic systems, such as rivers, lakes, streams, wetlands, estuaries, and bays and its mobilization to the water column, goes along to represent a substantial risk to the health of aquatic ecosystems and human populations worldwide. Therefore, an economic growth challenge at a local and worldwide scale. Preserving the viability of these aquatic systems requires complex actions and, thus, mobilizing the Earth Science scientific community. The full scope of environmental topics is key for a holistic approach benefiting a diverse group of stakeholders.

This Geosciences Special Issue will open a wide debate on Earth and Environmental issues related to the Quality of Sediments and Water of Aquatic Systems. Therefore, research results, practical experiences, alternatives, and new approaches are very welcome.

This Special Issue welcomes innovative papers dealing with i) tools and techniques of particle-tracking studies and their applications in contaminated sediment’s transport and fate, ii) water–sediments interactions, iii) contaminant distribution, bioavailability, and uptake partitioning, iv) data mining and spatial modeling, v) characterization, assessment, and monitoring of emerging contaminants, vi) chemical/toxicological/biological measurements and monitoring of pollutants, vii) ecological and human health risk assessment, viii) climate change impacts on aquatic systems quality, ix) impact of mining and industrial activities on water and sediment quality, x) the role of stable isotopes, REE and other analytical techniques in monitoring the sources and fate of contaminants in sediments, and xi) remediation and restoration.

Dr. Teresa Albuquerque
Dr. Rita Fonseca
Dr. Teresa Valente
Prof. Dr. Isabel Margarida Horta Ribeiro Antunes
Guest Editors

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Keywords

  • Transport and fate
  • Sediment–water interactions
  • Contaminant distribution and bioavailability
  • Data mining
  • Spatial modeling
  • Emerging contaminants
  • Risk assessment
  • Climate change scenarios
  • Analytical techniques
  • Remediation and restoration

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Published Papers (1 paper)

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Research

29 pages, 5323 KiB  
Article
Evaluating the Effectiveness of Nanotechnology in Environmental Remediation of a Highly Metal-Contaminated Area—Minas Gerais, Brazil
by Rita Fonseca, Joana Araújo, Catarina Pinho and Teresa Albuquerque
Geosciences 2022, 12(8), 287; https://doi.org/10.3390/geosciences12080287 - 25 Jul 2022
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Abstract
A column experiment at a laboratory level was carried out to assess the effect of the application of nanotechnology in the decontamination of soils and alluvial deposits with high levels of potentially toxic elements (PTEs). A suspension of zero-valent iron nanoparticles (nZVI) was [...] Read more.
A column experiment at a laboratory level was carried out to assess the effect of the application of nanotechnology in the decontamination of soils and alluvial deposits with high levels of potentially toxic elements (PTEs). A suspension of zero-valent iron nanoparticles (nZVI) was injected at three different concentrations in selected samples (two sediments, one soil). For most of the elements, the retention by nZVI was proportional to the concentration of the suspension and the trend was similar. Metals were immobilized by adsorption on the surface layer of the nanoparticles and/or by complexation, co-precipitation, and chemical reduction. By day 60 following injection, the nZVI lost reactivity and the retained species were desorbed and back into the soluble phase. The definition of spatial patterns for PTEs’ distribution allowed for the construction of contamination risk maps using a geostatistical simulation approach. The analysis obtained from the extractable contents of five target elements (Zn, Cu, Cd, Pb, As) was cross-checked with the estimated map network to assess their retention efficiency. Data from the analysis of these elements, in the extractable phase and in the porewater of the sediments/soils, indicate the nZVI injection as a suitable technique for reducing the risk level of PTEs in contaminated Fe-rich tropical environments. Full article
(This article belongs to the Special Issue Aquatic Systems Quality and Pollution Control II)
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