Advances in Remediation of Environmental Pollutants in Soil-Water System

A special issue of Toxics (ISSN 2305-6304). This special issue belongs to the section "Toxicity Reduction and Environmental Remediation".

Deadline for manuscript submissions: 15 January 2026 | Viewed by 620

Special Issue Editors


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Guest Editor
School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 210094 Nanjing, China
Interests: fluorescent molecular probes and their detection for pollutants; soil and groundwater pollution control and remediation; photocatalytic degradation of organic pollutants; solidification and stabilization of heavy metals; heavy metal phytoremediation

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Guest Editor
Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
Interests: water remediation; environmental material R&D; adsorption; advance nitrogen/phosphorus removal

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Guest Editor Assistant
Fujian Engineering and Research Center of Rural Sewage Treatment and Water Safety, Xiamen University of Technology, Xiamen 361024, China
Interests: fate and transport of heavy metals in soil; solid waste treatment and resource utilization; solidification/stabilization of heavy metals

Special Issue Information

Dear Colleagues,

This Special Issue aims to consolidate recent breakthroughs in methods and technologies addressing the removal and mitigation of contaminants within soil–water environments. The primary scope encompasses analytical, experimental, and theoretical research addressing critical contaminants such as heavy metals, persistent organic pollutants, pesticides, microplastics, and emerging environmental pollutants, with particular emphasis on their ecological risks and public health impacts. Contributors are encouraged to submit rigorous original studies, in-depth reviews, and novel methodological insights across chemical, biological, physical, and hybrid remediation strategies.

This Special Issue specifically highlights emerging remediation technologies, including advanced nanomaterial applications, bioremediation and phytoremediation techniques, electrochemical processes, and integrative remediation frameworks. Submissions should provide significant empirical validation, robust theoretical modeling, or comprehensive field studies that illustrate both the capabilities and limitations of novel remediation methodologies.

These studies will serve as a pivotal scholarly reference, advancing knowledge for researchers, environmental managers, policymakers, and practitioners working towards sustainable solutions to soil–water contamination challenges.

Prof. Dr. Fenghe Wang
Dr. Haotian Hao
Guest Editors

Dr. Jiahe Miao
Guest Editor Assistant

Manuscript Submission Information

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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. Toxics 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 2600 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

  • environmental remediation
  • persistent organic pollutants (POPs)
  • microplastics
  • emerging contaminants
  • heavy metals
  • phytoremediation
  • nanoremediation
  • electrochemical remediation
  • bioremediation
  • integrated remediation technologies.

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Published Papers (2 papers)

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Research

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15 pages, 2355 KB  
Article
Biodegradation of Carbon Tetrachloride in Groundwater: Microbial Community Shifts and Functional Genes Involvement in Enhanced Reductive Dechlorination
by Zhengwei Liu, Mingbo Sun, Wei Wang, Shaolei Zhao, Yan Xie, Xiaoyu Lin, Jingru Liu and Shucai Zhang
Toxics 2025, 13(8), 704; https://doi.org/10.3390/toxics13080704 - 21 Aug 2025
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Abstract
Carbon tetrachloride (CT) is a toxic volatile chlorinated hydrocarbon, posing a serious hazard to ecosystem and human health. This study discussed the bioremediation possibility of groundwater contaminated by CT. Enhanced reductive dechlorination bioremediation (ERD) was used to promote the reductive dechlorination process of [...] Read more.
Carbon tetrachloride (CT) is a toxic volatile chlorinated hydrocarbon, posing a serious hazard to ecosystem and human health. This study discussed the bioremediation possibility of groundwater contaminated by CT. Enhanced reductive dechlorination bioremediation (ERD) was used to promote the reductive dechlorination process of CT by adding yeast extract as a supplementary electron donor. The microcosm samples of the Control and Experi group were setup in the experiment, and the CT degradation efficiency and microbial community structure changes over 150 days were monitored. The results showed that the Experi group achieved complete degradation of CT within 40 days, while the control group had no significant change. By analyzing the physical and chemical indexes such as VFAs, sulfate ions, oxidation–reduction potential, pH value and so on, the key changes in the degradation process of CT were revealed. Microbial community analysis showed that specific microorganisms such as Acinetobacter johnsonii, Aeromonas media and Enterobacter mori played a significant role in the degradation of CT. They may produce hydrogen through fermentation to provide electron donors for the reductive dechlorination of CT. In addition, the genes of reductive dehalogenase synthase related to CT degradation were also identified, which provided molecular evidence for understanding the biodegradation mechanism of CT. The results deliver a scientific basis for optimizing the bioremediation strategy of CT-contaminated groundwater. Full article
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Review

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36 pages, 1537 KB  
Review
Integrated Approaches of Arsenic Remediation from Wastewater: A Comprehensive Review of Microbial, Bio-Based, and Advanced Technologies
by Aminur Rahman
Toxics 2025, 13(9), 768; https://doi.org/10.3390/toxics13090768 - 10 Sep 2025
Abstract
Arsenic-containing wastewater and soil systems are a serious hazard to public health and the environment, particularly in areas where agriculture and drinking water depend on groundwater. Therefore, the removal of arsenic contamination from soil, water, and the environment is of great importance for [...] Read more.
Arsenic-containing wastewater and soil systems are a serious hazard to public health and the environment, particularly in areas where agriculture and drinking water depend on groundwater. Therefore, the removal of arsenic contamination from soil, water, and the environment is of great importance for human welfare. Most of the conventional methods are inefficient and have very high operational costs, especially for metals at low concentrations or in large solution volumes. This review delivers a comprehensive approach to arsenic remediation, including microbiological processes, phytoremediation, biochar technologies, bio-based adsorbents, and nanomaterial-assisted techniques. All of these methods are thoroughly examined in terms of removal competence, their mechanisms, environmental impact, cost-effectiveness, and scalability. Phytoremediation and microbial remediation techniques are self-regenerating and eco-friendly, whereas fruit-waste-derived materials and biochar provide abundant adsorbents, and are therefore low-cost. On the other hand, nanotechnology-based approaches show remarkable effectiveness but raise concerns regarding economic feasibility and environmental safety. Additionally, this review represents a comparative analysis and discusses synergistic and hybrid systems that combine multiple technologies for enhancing the remediation performance. Future research directions are emphasized along with challenges such as material stability, regeneration, and policy integration. This review aims to guide decision-makers, research scholars, and industry stakeholders toward affordable, sustainable, and high-performance arsenic remediation techniques for practical use. Full article
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