Removal of Trace Organic Pollutants in Water Using Advanced Oxidation Technology

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Water Quality and Contamination".

Deadline for manuscript submissions: 20 February 2025 | Viewed by 1860

Special Issue Editor


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Guest Editor
College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
Interests: water treatment; advanced oxidation process; kinetics; disinfection byproducts; ferrate; photocatalysis

Special Issue Information

Dear Colleagues,

With the development of industry and population growth, the problem of trace organic pollutants in the water is becoming increasingly serious. Traditional water treatment processes are often ineffective in removing these pollutants to meet the required standards. Advanced oxidation technologies, with their advantages of high efficiency, fast speed, and lack of selectivity, demonstrate good application prospects and market potential. Advanced oxidation technologies are based on the generation of strong oxidizing free radicals, such as sulfate radicals (SO4−·) and hydroxyl radicals (·OH), which decompose complex organic molecules into smaller substances or completely mineralize them into CO2 and H2O. Conventional advanced oxidation technologies include Fenton and Fenton-like technologies, ozone oxidation technology, photocatalysis, photo-Fenton, persulfate, and electrochemical oxidation. This Special Issue aims to review the current status and hazards of trace organic pollutants in water and the research progress of advanced oxidation technologies in treating trace organic pollutants, providing a new approach for future trace organic pollutant control.

Dr. Feilong Dong
Guest Editor

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Keywords

  • trace organic pollutants
  • advanced oxidation technologies
  • water quality
  • sulfate radicals
  • hydroxyl radicals
  • removal
  • mineralization
  • degradation pathway

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Published Papers (1 paper)

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Review

11 pages, 1271 KiB  
Review
The Role of Ferrate (VI) in the Pretreatment of Algal Cells and Algal Organic Matters: A Review
by Saige Wang, Shuyi Yang, Huan Chen and Qiufeng Lin
Water 2024, 16(10), 1361; https://doi.org/10.3390/w16101361 - 11 May 2024
Viewed by 1438
Abstract
Algal blooms are caused by excessive levels of nitrogen, phosphorus, and other plant nutrients in water. Algae and algal organic matter (AOM) pose a great threat to the quality of drinking water. This manuscript offers a systematic review of algal removal by ferrate [...] Read more.
Algal blooms are caused by excessive levels of nitrogen, phosphorus, and other plant nutrients in water. Algae and algal organic matter (AOM) pose a great threat to the quality of drinking water. This manuscript offers a systematic review of algal removal by ferrate (Fe(VI)) oxidation, including the conditions for the removal of different algae by Fe(VI) and the factors affecting the removal efficiency. On this basis, the oxidation and coagulation mechanisms of algae removal by Fe(VI) are discussed. Then, the review introduces the process combining Fe(VI) pre-oxidation with aluminum sulfate action. The addition of aluminum sulfate can further enhance the coagulation effect and reduce the formation of disinfection byproducts (DBPs) in the subsequent chlorination process by effectively removing AOM, which is recognized as a precursor of DBPs. In addition, recent studies on the combined application of Fe(VI) and Fe(II) are also reviewed. In a reasonable dose range, the synergistic effect of Fe(VI) and Fe(II) can significantly improve the removal of algae and algal toxins. Finally, this review provides a comprehensive evaluation of the applicability of Fe(VI) in removing algal material, offers guidance for the harmless treatment of algae with Fe(VI), and identifies future research questions. Full article
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