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Application of Oxidation Technology for Water Treatment

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

Deadline for manuscript submissions: closed (5 July 2023) | Viewed by 1950

Special Issue Editors

College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310014, China
Interests: drinking water treatment; advanced oxidation process; sludge dewaterability
College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310014, China
Interests: advanced oxidation processes; reclamation of waste residuals

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Guest Editor
College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310014, China
Interests: water treatment; materials engineering; advanced oxidation processes

Special Issue Information

Dear Colleagues,

The development of civilization has brought about an increasing demand for consumer goods, and changes in people's living standards and production lifestyles have been accompanied by an increasing burden on the environment. Water pollution has always been an important environmental issue of concern to countries around the world. Compared with the past, more and more hard-to-degrade persistent organic compounds are entering the environment in the form of domestic sewage and industrial wastewater discharge, which seriously pollute the water environment. At the same time, the presence of emerging organic pollutants poses new challenges to water safety. The development of an efficient organic wastewater treatment technology that is recyclable, environmentally friendly, and non-polluting with low cost is of great significance for society to achieve sustainable development.

Existing articles show that advanced oxidation technology has been applied in water treatment, and the overall treatment effect is good. Advanced oxidation technology has significant advantages in water treatment, but it requires some specific conditions to perform well. Currently, there are still some knowledge gaps in the literature. For example, different types of wastewater quality and treatment conditions often affect the production of reactive radicals and reduce the oxidation efficiency of the treatment process. Advanced oxidation technology also has the problem of higher costs. The current aim is to improve the application conditions of advanced oxidation technology to make it more efficient and stable in water treatment, while at a cheaper cost.

This Special Issue invites original and high-quality research papers and review papers on "Advanced Oxidation Technology for Water Treatment". The collection of relevant papers in this scope helps to improve the effectiveness of advanced oxidation technology in water treatment, to investigate its degradation mechanism and to reduce the cost in the actual treatment process.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • Recent research progress of advanced oxidation technology;
  • Development and application of new photocatalytic materials;
  • Degradation kinetics of pollutants;
  • Qualitative and quantitative studies of reactive free radicals;
  • Identification of degradation by-products;
  • Ecotoxicological assessment and toxicity calculations;
  • Reduce the application cost of advanced oxidation technology;
  • Application of Density Functional Theory calculations in advanced oxidation research.

We look forward to receiving your contributions.

Dr. Jing Deng
Dr. Shijun Zhu
Dr. Hanxuan Zeng
Guest Editors

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Keywords

  • advanced oxidation processes
  • ultraviole
  • persulfate
  • peroxymonosulfate
  • heterogeneous catalysis
  • active radicals
  • drinking water
  • disinfection by-products
  • chlorination
  • sludge dewaterability

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Published Papers (1 paper)

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Research

16 pages, 5011 KiB  
Article
Facile Preparation of Fe3O4@SiO2 Derived from Iron-Rich Sludge as Magnetic Catalyst for the Degradation of Organic Contaminants by Peroxymonosulfate Activation
by Zhiwei Wang, Shijun Zhu, Jing Deng, Haojie Li, Liang Wang, Haojin Luo, Zehe Tang and Xueyan Li
Sustainability 2022, 14(24), 16419; https://doi.org/10.3390/su142416419 - 8 Dec 2022
Cited by 1 | Viewed by 1467
Abstract
Iron-rich sludge, generated during flocculation/sedimentation processes by using Fe-based coagulant in drinking water treatment plants, could be used as a precursor to prepare an effective peroxymonosulfate (PMS) activator (Fe3O4@SiO2) for the ciprofloxacin (CIP) degradation via facile hydrothermal [...] Read more.
Iron-rich sludge, generated during flocculation/sedimentation processes by using Fe-based coagulant in drinking water treatment plants, could be used as a precursor to prepare an effective peroxymonosulfate (PMS) activator (Fe3O4@SiO2) for the ciprofloxacin (CIP) degradation via facile hydrothermal treatment. The catalytic performances of raw iron-rich sludge and Fe3O4@SiO2 were evaluated. The removal rate of CIP in Fe3O4@SiO2/PMS system increased from 44.7% to 82.8% within 60 min compared with the raw iron-rich sludge. The effects of PMS, catalyst loadings, temperature, and initial pH on the CIP degradation were examined, demonstrating that acidic conditions and higher temperatures were beneficial for CIP degradation. Both sulfate radicals (SO4•−) and hydroxyl radicals (OH) contributed to the CIP degradation, and SO4•− was predominated in the Fe3O4@SiO2/PMS system, which was confirmed by the result of electron paramagnetic resonance (EPR) analysis and radical quenching tests. The mechanisms of the PMS activation process by Fe3O4@SiO2 were elucidated, and the influencing factors were among which the role of the iron mineral phase was emphatically explored. This study provides a facile method to convert the recycled waste iron-rich sludge to magnetic heterogeneous catalysts for CIP degradation with PMS activation. Full article
(This article belongs to the Special Issue Application of Oxidation Technology for Water Treatment)
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