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The Occurrence, Fate and Removal of Emerging Contaminants in Wastewater, 2nd Edition

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Wastewater Treatment and Reuse".

Deadline for manuscript submissions: 30 March 2026 | Viewed by 56

Special Issue Editors


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Guest Editor
Key Laboratory of Pesticide Environmental Assessment and Pollution Control, Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing, China
Interests: single-atom catalysis; emerging contaminant removal; advanced oxidation process; theoretical simulation; adsorption
Special Issues, Collections and Topics in MDPI journals
College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
Interests: heavy metal; PPCPs; adsorption; polymer; biochar; interface interaction; complexed wastewater
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Emerging contaminants (ECs), such as antibiotics, endocrine disruptors and microplastics, are potentially significant threats to water safety and human health. However, their monitoring and management are currently far from meeting the current needs.

This Special Issue will focus on ECs in wastewater, publishing research on their occurrence, fate and removal. Topics of interest include, but are not limited to, the following: traceability analysis of ECs in wastewater treatment plants and their evolution in the treatment process; the development of advanced materials and technologies for the treatment of ECs; the mechanisms and toxic effects of ECs in wastewater on biological systems and human health; and interference-resistant high-throughput detection methods of multiple species of ECs in real wastewater. Our purpose is to further the knowledge of these wastewater contaminants and to provide scientific references for their effective identification and the development of efficient control strategies.

Furthermore, the Special Issue will summarize the existing research on ECs in wastewater and highlight the latest research advances, in order to better clarify the literature concerning ECs in wastewater and to outline cutting-edge lines of progress. We look froward to your contributions.

Dr. Changqing Zhu
Dr. Chen Ling
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. Water 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 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

  • emerging contaminants 
  • wastewater 
  • monitoring 
  • management 
  • treatment technology

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Published Papers (1 paper)

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Research

15 pages, 1918 KB  
Article
Efficiency and Mechanism of a Hollow Carbon-Based Single-Atom Iron Catalyst in Activating Periodate for Bisphenol a Degradation
by Chen Ling, Mengyue Yuan, Shang Gao, Yuzhu Xue and Yuwei Pan
Water 2025, 17(18), 2705; https://doi.org/10.3390/w17182705 (registering DOI) - 13 Sep 2025
Abstract
Developing efficient and recyclable periodate (PI)-based advanced oxidation processes (AOPs) for the removal of emerging organic pollutants (EOPs) has attracted considerable attention. However, the structure–activity relationship of single-atom catalyst in PI-AOP systems remains poorly understood. In this study, a hollow carbon-supported single-Fe atom [...] Read more.
Developing efficient and recyclable periodate (PI)-based advanced oxidation processes (AOPs) for the removal of emerging organic pollutants (EOPs) has attracted considerable attention. However, the structure–activity relationship of single-atom catalyst in PI-AOP systems remains poorly understood. In this study, a hollow carbon-supported single-Fe atom catalyst (HCFe800) was synthesized and applied for PI activation toward bisphenol A (BPA) degradation. Under neutral pH and ambient temperature, HCFe800 enabled complete removal of BPA within 1 min, achieving a degradation rate constant (k) of 5.094 min−1—approximately 3 and 10 times higher than that of Fe-free and solid control catalysts, respectively. After normalization, the apparent degradation rate constant was 1–3 orders of magnitude greater than those of previously reported catalysts. The optimized Fe doping amount and pyrolysis temperature facilitated the formation of atomically dispersed FeN4 sites, which outperformed Fe clusters and iron oxides in catalytic activity. The hollow porous structure further enhanced the exposure of active sites, contributing to the exceptional performance. The HCFe800/PI system remained highly effective across broad pH (3–7) and temperature (5–35 °C) ranges and in the presence of 100-fold concentrations of common inorganic ions. Mechanistic studies revealed that the main reactive species were 1O2, O2•−, and IO3, with negligible involvement of high-valent Fe species. Eight less-toxic BPA degradation products were identified. Moreover, the system was extendable to various other EOPs and exhibited excellent recyclability via thermal regeneration. This work provided fundamental insights into designing and applying single-atom catalysts for PI-based advanced treatment of EOPs. Full article
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