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Frontiers of Sustainable Remediation and Risk Assessment in Contaminated Soil

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Environmental Sustainability and Applications".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 3185

Special Issue Editors


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Guest Editor
Department of Science and Technology, University of Sannio, 82100 Benevento, Italy
Interests: source and fate of potentially toxic elements (PTEs) and persistent organic pollutants (POPs) in the environment; environmental natural radioactivity; investigation of the role of soil–plant–microorganism interactions in the biogeochemical cycle of contaminants in soil; nature-based approaches for environmental remediation and agronomic challenges

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Guest Editor
School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Nottingham NG25 0QF, UK
Interests: environmental geochemistry; GIS applications (including modeling, probability, and uncertainty); soil protection and sustainability; water quality; contaminated land and remediation Inter-related aspects and impacts on the environment and society; ecosystem goods and services; sustainability science

Special Issue Information

Dear Colleagues,

Soil contamination represents a serious threat since it may cause dramatic consequences for soil ecological function and related potential health effects. Hence, its rehabilitation represents a worldwide challenge and is becoming a key subject in post-industrial landscapes and rural areas heavily affected by the use of chemicals. However, further efforts to develop techniques for soil effective management are required.

Improving risk management and using nature-based solutions (NBS) are key points to both assess the potential adverse effects to receptors and protect and recover soil ecosystems to enhance their resilience.

With regards to the risk assessment framework, the quality of soils and the possible hazards have been commonly evaluated on the basis of total contaminant concentrations. However, performing risk evaluation by measuring total concentrations often leads to either over or underestimation of the risks.

The bioavailability of contaminants is an aspect that can also determine the success of soil remediation from an NBS perspective. This is heavily affected by the geochemical features of soils along with their biochemical profile and rhizoplane bioactivity.

Nature-based solutions are promising approaches that are inspired by nature, such as the synergistic actions of plants and microorganisms in the case of phytoremediation. They have great potential for soil improvement and conservation in a sustainable way, but to be successful they must involve the geo-bio assessment of the environment under consideration.

Given this background, we are pleased to announce a Special Issue of Sustainability with the general theme of “Frontiers of Sustainable Remediation and Risk Assessment in Contaminated Soil”.

This Special Issue will publish high-quality research papers or reviews that improve our understanding of (i) the soil biogeochemical aspects that can influence the bioavailability of contaminants and, consequently, the risk management and the remediation success, (ii) the soil–plant–microbe interactions at the metaorganism level from the soil remediation perspective, (iii) new sustainable solutions exploiting the simultaneous use of biological and georesources to enhance remediation success and reduce risk, (iv) progress and limitations of NBS in soil remediation.

Dr. Daniela Zuzolo
Prof. Dr. Marcello Di Bonito
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. Sustainability is an international peer-reviewed open access semimonthly 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 remediation
  • soil contamination risk assessment
  • persistent organic pollutants (POPs)
  • potentially toxic elements (PTEs)
  • nature-based solutions (NBSs)
  • geochemical mobility
  • plant–microorganisms partnerships
  • soil biogeochemistry
  • phytotechnologies

Published Papers (2 papers)

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Research

14 pages, 2351 KiB  
Article
Evaluation of Land Use Adaptation by Sequential Extraction of Soil Trace Elements at an Abandoned Gold and Copper Refinery Site in Northern Taiwan
by Shang-Feng Wu, Yun-Jie Lai, Zeng-Yei Hseu and Yaw-Terng Chern
Sustainability 2022, 14(11), 6423; https://doi.org/10.3390/su14116423 - 24 May 2022
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Abstract
This study site is located at an abandoned factory of mining, smelting, and refining of gold and copper in north Taiwan for more than one hundred years. The present study used soil background investigation out of the site and the sequential extraction procedures [...] Read more.
This study site is located at an abandoned factory of mining, smelting, and refining of gold and copper in north Taiwan for more than one hundred years. The present study used soil background investigation out of the site and the sequential extraction procedures for arsenic and copper to assess the reutilization potential of brownfields at the site. The upper limit of background concentration out of the site was 300 mg/kg for arsenic and 700 mg/kg for copper. The soil arsenic within the site was mainly in the immobile fraction, such as forms fixed by layer silicates, that were very low risk for environmental releases. The soil copper in the abandoned sedimentation basin, gold refinery, and copper refinery was in the mobile fractions such as acid extractable, reducible, and oxidizable forms with higher release risk; therefore, except merely those three zones in the entire site with higher risk for environmental releases of copper, the release risks of trace elements are quite low in the rest of the areas, and land reuse without contact with soil or plant non-edible plants is possible. Therefore, in response to public demand for opening part of the site to promote local tourism development, appropriate control and isolation measures can be implemented to prevent the toxic elements from affecting human health through soil ingestion, skin contact, and other exposure pathways. In terms of pollution control, reducing dust inhalation is also an option to efficiently reduce health risks to an acceptable level and achieve the goal of sustainable land use at the contaminated site. Full article
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14 pages, 3492 KiB  
Article
Evaluating the Hydraulic Conductivity of Dense Nonaqueous Phase Liquid in a Single Fracture of Rock-like Material
by Meng-Chia Weng, Chiou-Liang Lin, Fu-Shu Jeng and Hao-Chih Ou
Sustainability 2022, 14(4), 2288; https://doi.org/10.3390/su14042288 - 17 Feb 2022
Viewed by 1131
Abstract
To investigate the seepage characteristics of dense nonaqueous phase liquids (DNAPLs) in rock fractures, two types of NAPLs (paint and creosote) were used in triaxial permeability tests conducted on single-fracture samples. The hydraulic conductivity of rock fractures with different apertures, confining pressures, and [...] Read more.
To investigate the seepage characteristics of dense nonaqueous phase liquids (DNAPLs) in rock fractures, two types of NAPLs (paint and creosote) were used in triaxial permeability tests conducted on single-fracture samples. The hydraulic conductivity of rock fractures with different apertures, confining pressures, and fluid properties was measured, and the influence of various physical factors on transmissivity was explored. The results demonstrated the following: (1) Fracture aperture and fluid viscosity are the main factors influencing transmissivity; (2) The widely used cubic law fails to effectively predict the transmissivity of high-viscosity liquids in a fracture, and the influence of liquid viscosity is considerably higher than that predicted by the cubic law; and (3) This study proposed a transmissivity prediction model of DNAPLs in a rock fracture based on multivariate regression analysis. The proposed model provides more accurate prediction results than those predicted by the cubic law, and is applicable to fracture apertures ranging from 5 × 10−4 to 2.5 × 10−3 m as well as to every kind of fluid used in this study. Full article
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