Future Directions and Opportunities of Advanced Oxidation Technologies for Water Treatment

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

Deadline for manuscript submissions: closed (20 March 2024) | Viewed by 3345

Special Issue Editors


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Guest Editor
School of Environment, Harbin Institute of Technology, Harbin, China
Interests: drinking water treatment; advanced oxidation technology; disinfection; water toxicity; organic pollutant decontamination

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Guest Editor
Heilongjiang Academy of Science, National and Provincial Joint Engineering Laboratory of Wetland Ecological Conservation, Harbin, China
Interests: advanced oxidation technology; catalytic ozonation; radical or nonradical processes; water purification

E-Mail Website
Guest Editor
School of Environment, Harbin Institute of Technology, Harbin, China
Interests: advanced oxidation technology; catalytic ozonation; radical or Nonradical processes; water purification

Special Issue Information

Dear Colleagues,

Advanced oxidation technologies (AOTs) have been widely used for drinking water or wastewater treatment. Compared with the traditional water treatment process, AOTs show high performance for water purification, especially in organic pollutants removal. Therefore, the opportunities for AOTs development are very promising. However, the practical application of AOTs is usually limited by the reaction conditions, coexisting impurities, and other factors. The challenges during AOTs application can not be overlooked. This Special Issue focuses on the future development of the AOTs and encourages revealing the underlying reaction mechanisms from new perspectives. Moreover, to overcome the technical bottlenecks of AOTs in the practical process. Besides, it is encouraged to develop more novel AOTs.

Dr. Pengwei Yan
Dr. Lei Yuan
Prof. Dr. Jimin Shen
Guest Editors

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Keywords

  • advanced oxidation technologies
  • catalytic ozonation
  • water purification
  • fenton-like oxidation
  • radical or nonradical processes

Published Papers (3 papers)

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Research

15 pages, 4479 KiB  
Article
Preparation of Molecularly Imprinted Magnetic Stir Bar for Bisphenol A and Its Analysis on Trace Bisphenol A in Actual Water Samples
by Jing Wang, Zhehao Wang, Zhonglin Chen, Pengwei Yan, Jimin Shen and Jing Kang
Water 2023, 15(19), 3361; https://doi.org/10.3390/w15193361 - 25 Sep 2023
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Abstract
In this paper, a new method for the preparation of a molecularly imprinted polymer (MIPs)-coated magnetic stir bar for bisphenol A (BPA) is proposed. The MIPs were prepared using BPA as the template molecule, and the sol-gel technique was employed to coat the [...] Read more.
In this paper, a new method for the preparation of a molecularly imprinted polymer (MIPs)-coated magnetic stir bar for bisphenol A (BPA) is proposed. The MIPs were prepared using BPA as the template molecule, and the sol-gel technique was employed to coat the MIPs onto the surface of a glass tube, which contained an internal magnetic core. The morphology and structure of the MIPs and the coating on the glass stir bar were analyzed using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR). Parameters affecting the extraction efficiency, such as extraction time, stirring speed, desorption solvent, and desorption time, were optimized. To evaluate the selective adsorption performance of the BPA-MIPs coating, molecularly imprinted stir bar sorptive extraction (MIPs-SBSE) was used in combination with high-performance liquid chromatography (HPLC) for the detection of BPA in deionized water, tap water, bottled water, and reservoir water. The results showed that under the optimized conditions, the MIPs coating exhibited better adsorption capacity and selectivity for BPA compared to the non-imprinted coating. The BPA-MIPs-SBSE could be reused for at least five cycles without a significant decrease in its selective adsorption ability. The recoveries of BPA in the four actual water samples ranged from 70.53% to 93.10%, with relative standard deviations of 4.49% to 8.69%. The practical application demonstrated that this method is simple, convenient, selective, and sensitive, making it suitable for the analysis and detection of trace amounts of BPA in complex samples. Full article
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11 pages, 3562 KiB  
Article
Continuous Flow Experimental Study on Ozonation of Ibuprofen Catalyzed by Silicate-Based Microfiltration Membrane
by Weiqiang Wang, Zhonglin Chen, Jimin Shen, Pengwei Yan, Bingyuan Wang, Lei Yuan, Jing Kang, Shengxin Zhao and Yue Liu
Water 2023, 15(12), 2184; https://doi.org/10.3390/w15122184 - 09 Jun 2023
Cited by 1 | Viewed by 1108
Abstract
In the treatment of drinking water, the ibuprofen (IBP) disinfection by-products, toxicity, and its impact on drinking water safety have caused widespread attention in domestic and overseas research areas. We studied the removal efficiency of IBP under the following conditions: combination of good [...] Read more.
In the treatment of drinking water, the ibuprofen (IBP) disinfection by-products, toxicity, and its impact on drinking water safety have caused widespread attention in domestic and overseas research areas. We studied the removal efficiency of IBP under the following conditions: combination of good catalytic activity of a silicate-based microfiltration membrane with the strong oxidizing ability of ozone in the continuous flow experiment mode and various influencing factors. This research revealed that with the increase of pH and hydraulic retention time, the removal efficiency of IBP exhibited an increasing trend; with the increase of alkalinity and humic acid concentration in water, the removal efficiency of IBP was obviously inhibited. Free radical inhibitors and electron spin resonance (ESR) analysis demonstrated that hydroxyl radical (∙OH) is an important active species during the reaction of ozone-catalyzed IBP with the silicate-based microfiltration membrane. Full article
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15 pages, 5805 KiB  
Article
Micro-Nano Bubbles Conditioning Treatment of Contaminated Sediment for Efficient Reduction: Dehydration Characteristic and Mechanism
by Qingbo Zhang, Xuyuan Zhao, Jifu Yin and Zhilin Sun
Water 2023, 15(11), 1985; https://doi.org/10.3390/w15111985 - 24 May 2023
Viewed by 1099
Abstract
The reduction and dehydration treatment of contaminated sediment from rivers and lakes is a prerequisite for ensuring the subsequent safe disposal. In this study, micro-nano bubbles (MBs) technology was creatively proposed for the conditioning treatment of contaminated sediment to improve its sedimentation and [...] Read more.
The reduction and dehydration treatment of contaminated sediment from rivers and lakes is a prerequisite for ensuring the subsequent safe disposal. In this study, micro-nano bubbles (MBs) technology was creatively proposed for the conditioning treatment of contaminated sediment to improve its sedimentation and dehydration performance. Orthogonal experiment and single factor experiment were conducted to optimize factors such as bubble size, intake air volume and treatment time. The conditioning effect was analyzed through direct and indirect characterization parameters. The results showed that the range (R) values for bubble size, intake air volume and treatment time were 101.8, 94.5 and 51.6 respectively in the orthogonal analysis. The optimum bubble size, intake air volume and treatment time were 1 μm, 30 L/min and 90 s. At this time, the CST of conditioned sediment decreased to 160.6 s (the reduction rate of 89.29%) and the moisture content of the filter cake decreased to 65.2%. Through the analysis of polysaccharide and MLSS, it was found that the MBs effectively exerted the oxidation and extracellular polymer cracking properties, which released polysaccharides that easily bind to water. The SEM analysis of the filter cake showed a loose structure and rich porosity compared to the undisturbed sediment. Meanwhile, the MBs promoted the homogenization degree of conditioners to achieve efficient dehydration. Therefore, MBs conditioning was verified as a novel and promising technique for improving the dehydration performance of river and lake contaminated sediment. Full article
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