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Journals
Processes
Special Issues
Soil Remediation Processes
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Soil Remediation Processes

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Environmental and Green Processes".

Deadline for manuscript submissions: closed (28 February 2025) | Viewed by 1716

Special Issue Editors

Prof. Dr. Avelino Núñez-Delgado

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Guest Editor
Department of Soil Science and Agricultural Chemistry, University of Santiago de Compostela, Engineering Polytechnic School, Campus Terra, 27002 Lugo, Spain
Interests: adsorbents; emerging pollutants; diffuse pollution; soil pollution; soil remediation
Special Issues, Collections and Topics in MDPI journals
Dr. María J. Fernández-Sanjurjo

E-Mail Website
Guest Editor
Department of Soil Science and Agricultural Chemistry, University of Santiago de Compostela, Engineering Polytechnic School, Campus Terra, 27002 Lugo, Spain
Interests: adsorbents; emerging pollutants; clay materials; soil pollution; soil remediation
Dr. Ana Barreiro

E-Mail Website
Guest Editor
Department of Soil Science and Agricultural Chemistry, University of Santiago de Compostela, Engineering Polytechnic School, Campus Terra, 27002 Lugo, Spain
Interests: adsorbents; emerging pollutants; soil microbiology; soil pollution; soil remediation
Prof. Dr. Esperanza Álvarez-Rodríguez

E-Mail Website
Guest Editor
Department of Soil Science and Agricultural Chemistry, University of Santiago de Compostela, Engineering Polytechnic School, Campus Terra, 27002 Lugo, Spain
Interests: adsorbents; emerging pollutants; forest soil management; soil pollution; soil remediation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Soil pollution is clearly seen as a global issue, and it is associated with high and growing concerns. In fact, soil pollution implies environmental and health hazards affecting not just the edaphic environment but, subsequently, also the atmosphere and aquatic environmental compartments, which are in close and intricate relation with soils, constituting a kind of whole general physical–chemical–biological system. In view of that, new data, research, and proposals focused on means to remediate soil pollution, thus contributing to the protection of the whole environment, are key objectives to be reached by the scientific community.

This Special Issue on “Soil Remediation Processes” seeks high-quality works focusing on the various and multiple aspects of soil pollution and remediation, considering simultaneously or individually any of the solid, liquid, and gaseous phases of the tridimensional matrix configuring the whole edaphic system.

Topics include, but are not limited to, the following:

  • Any aspect of soil pollution, at the same time including founded proposals and/or experimental details to remediate the specific pollutants under study.
  • Any aspect regarding founded proposals and/or experimental results dealing with any technology conceived to (and/or which has demonstrated to be useful to) obtain advancements in soil remediation or in any kind of soil pollution treatment.
  • Specific aspects, such as manuscripts dealing with new materials to improve bioremediation, including biochar, surfactants, biosurfactants, nanomaterials, and others with demonstrated and/or promising value.

Prof. Dr. Avelino Núñez-Delgado
Dr. María J. Fernández-Sanjurjo
Dr. Ana Barreiro
Prof. Dr. Esperanza Alvarez-Rodriguez
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Processes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • soil pollution
  • soil chemistry
  • soil physics
  • soil microbiology
  • soil pollution treatment
  • environmental pollution
  • environmental remediation

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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Research

25 pages, 4025 KiB  
Article
Heavy Metal Pollution in a Cu Mine Dump and in Close Agricultural Soils and Crops in Mozambique
by Severino dos Santos Savaio, Ana Barreiro, Avelino Núñez-Delgado, Antonio Suluda, Esperanza Álvarez-Rodríguez and María J. Fernández-Sanjurjo
Processes 2025, 13(3), 902; https://doi.org/10.3390/pr13030902 - 19 Mar 2025
Viewed by 381
Abstract
Heavy metal pollution is investigated for a mine dump and soils and crops located 0.5, 1, 1.5, 3 and 6 km from a Cu mine, analyzing the total, available and exchangeable Cu, Zn, Cr, Ni, Cd and Pb. The maximum total contents in [...] Read more.
Heavy metal pollution is investigated for a mine dump and soils and crops located 0.5, 1, 1.5, 3 and 6 km from a Cu mine, analyzing the total, available and exchangeable Cu, Zn, Cr, Ni, Cd and Pb. The maximum total contents in the dumping site reached 10,000, 1500, 1000, 230, 180 and 0.6 mg kg−1 for Cu, Cr, Ni, Zn, Pb and Cd, respectively. Within agricultural soils, those located 1.5 km away showed the highest total concentrations. The available Cu, Zn, Cd and Pb values were higher in the dump compared with the soils, while Cr and Ni stood out in the samples located 1.5 km away. Regarding crops, the Cu, Cr, Ni, Cd and Pb concentrations were higher in plants situated 3 km away. Considering the toxicity limits, Cr and Ni presented higher levels in most cases, while Cu exceeded the limits in most of the dump and soil samples located 1.5 km away, whereas Pb only exceeded them in the dump. The contents in crops indicated higher values in plants growing 3 km away, with all samples showing Cr pollution problems. These results can be considered of environmental significance, both for Mozambique and globally in areas affected by heavy metal pollution caused by mining activities. Full article
(This article belongs to the Special Issue Soil Remediation Processes)
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12 pages, 2008 KiB  
Article
Evaluation Study of the Passivation Effect of Arsenic-Contaminated Farmland Soil
by Shuyue Liu, Jikai Su, Zhiyu Zhang, Yajing Huang, Xiaoyao Wang and Xiaoyun Yi
Processes 2024, 12(12), 2802; https://doi.org/10.3390/pr12122802 - 8 Dec 2024
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Abstract
In situ passivation technology, by reducing the bioavailability of arsenic in soil, thereby reducing its uptake by crops, is currently the main remediation method for arsenic-contaminated farmland soil. However, applying stabilizing materials may also affect the other properties of soil, ultimately influencing the [...] Read more.
In situ passivation technology, by reducing the bioavailability of arsenic in soil, thereby reducing its uptake by crops, is currently the main remediation method for arsenic-contaminated farmland soil. However, applying stabilizing materials may also affect the other properties of soil, ultimately influencing the growth of crops. The long growth cycles of crops and their susceptibility to factors such as agronomic measures make plant-based indicators less practical as evaluation indicators. In this study, five kinds of passivation materials, including iron-based biochar (T1), coffee residue (T2), red mud (T3), chitosan-modified iron filings (T4), and modified minerals (T5) were applied in pot experiments. The study analyzed the effects of the passivation materials on soil properties and the growth and safety traits of plants. Key soil indicators influencing biomass were identified, the passivation remediation effects were evaluated, and a method using soil property indicators instead of plant indicators for passivation remediation evaluation was developed. The results showed that key indicators influencing the biomass change of water spinach due to passivation treatment included total nitrogen, total phosphorus, and catalase activity. The improved comprehensive evaluation indicators for passivation effects include available arsenic in soil, total nitrogen, total phosphorus, and catalase activity. I-SI can be expressed as I-SI=0.6∆Assoil+0.4−2.152∆TN+0.422∆TP+0.334∆CAT−0.261. I-SI is highly feasible, where a higher value indicates better remediation efficacy. After evaluation, iron-based biochar was the best passivation effect. An evaluation method for the passivation effect was constructed based on these findings, aiming to simplify the process of comprehensive evaluation of the passivation effect and shorten the evaluation time, providing a new idea for assessing the passivation effect. Full article
(This article belongs to the Special Issue Soil Remediation Processes)
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