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Advancement of Advanced Oxidation Processes (AOPs) for Water and Wastewater Treatment and Water Reuse, 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 September 2026 | Viewed by 845

Special Issue Editors


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Guest Editor
Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore
Interests: emerging contaminants removal; advanced oxidation process; water treatment and reuse
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Guest Editor
School of Environment, Tsinghua University, Beijing 100084, China
Interests: advanced treatment technologies for drinking water; UV disinfection and advanced oxidation processes technologies; industrial water treatment technologies; environmental risk assessment
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Water and wastewater contain varying levels of recalcitrant and potentially toxic organic compounds, which necessitate effective treatment prior to final disposal or reuse. At present, advanced oxidation processes (AOPs) have gained considerable attention from water professionals due to their ability to rapidly and effectively remove organics, especially emerging organic contaminants, and transform them into harmless products.

In view of the above observation, this Special Issue will focus on manuscripts (research papers, reviews, and short communications) related to the research and development, policy, implementation, and management of AOPs for organics removal in water and wastewater treatment, as well as in water reuse.

Manuscripts in this Special Issue are expected to interpret the results of water quality and cost analyses of AOP studies within the context of organic pollutant removal and control by evaluating problems such as treatment performance, novel materials and process development, transformation products and pathways, cost-effectiveness analysis, and any other potential impacts on water and wastewater management.

Prof. Dr. Jiangyong Hu
Prof. Dr. Say Leong Ong
Prof. Dr. Wenjun Sun
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 250 words) can be sent to the Editorial Office for assessment.

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

  • advanced oxidation process
  • organics removal
  • transformation products
  • toxicity evaluation
  • pre- and post-process
  • water and wastewater treatment
  • water reuse
  • cost-effectiveness analysis
  • policy and management

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Published Papers (1 paper)

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Research

17 pages, 6054 KB  
Article
Enhanced Catalytic Ozonation for Water Treatment via TiO2-Modified LaMnO3 Undergoing Efficient Mn3+/Mn4+ Redox Cycle
by Jingjing Yao, Rui Li, Say-Leong Ong, Haipu Li, Hui Ying Yang and Jiangyong Hu
Water 2026, 18(7), 822; https://doi.org/10.3390/w18070822 - 30 Mar 2026
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Abstract
The TiO2-modified LaMnO3 catalyst demonstrated outstanding catalytic performance across a broad pH range (4.2 to 10.0) and under various complex water conditions. It achieved complete degradation of the ibuprofen parent compound, attaining an 85.9% mineralization rate. The efficacy stems from [...] Read more.
The TiO2-modified LaMnO3 catalyst demonstrated outstanding catalytic performance across a broad pH range (4.2 to 10.0) and under various complex water conditions. It achieved complete degradation of the ibuprofen parent compound, attaining an 85.9% mineralization rate. The efficacy stems from the reversible Mn3+/Mn4+ redox couple. The ratio of Mn3+/Mn4+ was 3.9 for TiO2-modified LaMnO3, significantly higher than 1.2 for nanocast LaMnO3. Experimental results and density functional theory revealed that La and Ti did not actively participate in the catalytic ozone reaction. Notably, the Mn3+/Mn4+ pair emerged as key drivers in the involvement of HO•, O2, and 1O2 in the reactive oxygen species pathway. Notably, ozone exhibited preferential adsorption and activation on the (010) crystal face of the catalyst. A moderated reduction in interaction forces facilitated the Mn3+/Mn4+ redox cycle, resulting in increased production of reactive oxygen species. These findings contributed to the development of more efficient catalysts for environmental remediation. Full article
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