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Water
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Water Treatment Technology for Emerging Contaminants
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Water Treatment Technology for Emerging Contaminants

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

Deadline for manuscript submissions: 15 November 2024 | Viewed by 2562

Special Issue Editor

Prof. Dr. Wenjie Zhang

E-Mail Website
Guest Editor
College of Environmental Science & Engineering, Guilin University of Technology, Guilin, China
Interests: emerging pollutants; removal strategies; potable water sources; membrane filtration; environment detection; biological treatment; degradation mechanism

Special Issue Information

Dear Colleagues,

This Special Issue aims to provide an authoritative platform for the academic and engineering practice communities to exchange and share their latest research findings and application cases related to the treatment of emerging pollutants in water. At the same time, we hope to promote cooperation and exchange between experts and scholars in different fields, as well as promote the innovation and development of water treatment technology for emerging pollutants. This Special Issue will focus on water treatment technologies for different types of emerging pollutants.

In this Special Issue, we welcome research papers, review papers, and case studies related to emerging pollutants, including, but not limited to, the following topics:

  • Emerging pollutants;
  • Microplastics;
  • Drug residues;
  • Organic pollutants;
  • Heavy metals and inorganic pollutants.

For different categories of emerging pollutants, this Special Issue aims to show and introduce relevant water treatment technologies and methods. Through the research of these technologies and methods, people can better understand and solve the challenges posed by emerging pollutants to the water environment. In addition, this Special Issue will provide practical solutions to solve the problem of emerging pollutants in the water environment through the research and application of water treatment technology for emerging pollutants. Through the review and collation of the existing literature, this Special Issue will hopefully provide a clear basis for the positioning of emerging pollutant water treatment technologies.

Prof. Dr. Wenjie Zhang
Guest Editor

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 pollutants
  • water treatment technologies
  • innovation and development
  • water environment
  • research and applications

Published Papers (2 papers)

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Research

13 pages, 1974 KiB  
Article
Comparative Analysis of the Disinfection Efficiency of Steel and Polymer Surfaces with Aqueous Solutions of Ozone and Sodium Hypochlorite
by Valentin Romanovski, Andrei Paspelau, Maksim Kamarou, Vitaly Likhavitski, Natalia Korob and Elena Romanovskaia
Water 2024, 16(5), 793; https://doi.org/10.3390/w16050793 - 6 Mar 2024
Viewed by 1045
Abstract
Disinfection of surfaces with various functional purposes is a relevant measure for the inactivation of microorganisms and viruses. This procedure is used almost universally, from water treatment facilities to medical institutions and public spaces. Some of the most common disinfectants the World Health [...] Read more.
Disinfection of surfaces with various functional purposes is a relevant measure for the inactivation of microorganisms and viruses. This procedure is used almost universally, from water treatment facilities to medical institutions and public spaces. Some of the most common disinfectants the World Health Organization recommends are chlorine-containing compounds. Sodium and calcium hypochlorites are only used for disinfection of the internal surfaces of water treatment facilities. However, it is known that ozone is a more powerful oxidizing agent. This study compares the effectiveness of inactivating yeast-like fungi Candida albicans, Gram-positive Bacillus subtilis, and Gram-negative bacteria Escherichia coli with aqueous ozone and sodium hypochlorite solutions. This study used ozone solutions in water with a concentration of 0.5–1.5 mg/L and sodium hypochlorite solutions with an active chlorine concentration of 50–150 mg/L. Steel and polymeric plates were used as substrates. Comparison of the CT (concentration by time) criterion at the ratio of LD50 in NaClO to ozonated water shows that the smallest difference, around 100 times, was observed in the inactivation of Candida albicans. The maximum difference is up to 230 times in the inactivation of Bacillus subtilis. Full article
(This article belongs to the Special Issue Water Treatment Technology for Emerging Contaminants)
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23 pages, 2759 KiB  
Article
Enhanced Adsorption Capacity of Methylene Blue Dye onto Kaolin through Acid Treatment: Batch Adsorption and Machine Learning Studies
by Nadia Hamri, Ali Imessaoudene, Amina Hadadi, Sabrina Cheikh, Abdelhamid Boukerroui, Jean-Claude Bollinger, Abdeltif Amrane, Hichem Tahraoui, Hai Nguyen Tran, Abdelrahman O. Ezzat, Hamad A. Al-Lohedan and Lotfi Mouni
Water 2024, 16(2), 243; https://doi.org/10.3390/w16020243 - 10 Jan 2024
Cited by 4 | Viewed by 1294
Abstract
Algerian kaolinite, sourced from Djebel Debbagh nuance 3 (DD3), was used as a low-cost adsorbent to remove methylene blue (MB) dye from water. Its adsorption capacity was enhanced through sulfuric acid treatment (treated-DD3). In response to the urgent demand for clean water, various [...] Read more.
Algerian kaolinite, sourced from Djebel Debbagh nuance 3 (DD3), was used as a low-cost adsorbent to remove methylene blue (MB) dye from water. Its adsorption capacity was enhanced through sulfuric acid treatment (treated-DD3). In response to the urgent demand for clean water, various technologies have been developed to address dye removal from wastewater. This study, specifically delving into the treatment of textile wastewater, examined the efficacy of treated-DD3 through adsorption processes. The acid treatment increased the surface area and pore volume of DD3. X-ray diffraction showed crystalline phases in both, with treated-DD3 having higher crystallinity. Fourier-transform infrared spectroscopy found no significant differences post-acid treatment. Scanning electron microscopy revealed DD3 had large, stacked particles with low surface area, while treated-DD3 had increased porosity and a smoother surface. Various parameters affecting MB adsorption were studied. The Langmuir and Freundlich models were used for isotherm parameters. Treated-DD3 exhibited a higher MB adsorption capacity (64.58 mg/g according to the Langmuir model) than DD3 (44.48 mg/g). Thermodynamic analysis indicated spontaneous and endothermic MB adsorption onto both DD3-BM and treated-DD3-BM systems under different pH conditions. Treated-DD3 effectively reduced chemical oxygen demand (from 304.056 mg/L to 34.44 mg/L) and biological oxygen demand (from 80 mg/L to 20 mg/L) in real textile wastewater. The adsorbent exhibited rapid removal and decolorization, surpassing 93% within the first 7 min of the experiment. The Gaussian process regression and particle swarm optimization (GPR–PSO) predicted MB adsorption capacity effectively (R = 0.9989, R2 = 0.9978, adj-R2 = 0.9978, RMSE = 1.1390, and MAE = 0.3926). Full article
(This article belongs to the Special Issue Water Treatment Technology for Emerging Contaminants)
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