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Water
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Control and Treatment of Emerging Contaminants in Water Ecosystems
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Control and Treatment of Emerging Contaminants in Water Ecosystems

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

Deadline for manuscript submissions: 15 September 2024 | Viewed by 3193

Special Issue Editors

Dr. Sai Xu

E-Mail Website
Guest Editor
School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, China
Interests: emerging contaminants; antibiotics; antibiotic resistance genes; microbial remediation; biodegradation
Dr. Yuxiang Zhu

E-Mail Website
Guest Editor
College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
Interests: environmental behaviors; health risk; photocatalysis; emerging contaminants; contamination control

Special Issue Information

Dear Colleagues,

The control and treatment of emerging contaminants in water is an important issue for ensuring the safety and quality of our water resources. Emerging contaminants refer to a wide range of chemicals and substances that are not commonly monitored or regulated, but have the potential to cause adverse effects on humans’ health or the environment. These contaminants include pharmaceuticals, personal care products, pesticides, industrial chemicals, and various other substances (antibiotic resistance genes). In light of the detrimental impacts that emerging contaminants have on water ecosystems, there is a growing need to devise environmentally friendly remediation approaches.

This Special Issue welcomes critical reviews, monographs, mini research articles, and research papers concerning the environmental friendly, laboratory- and field-scale control and treatment of emerging contaminants from natural and artificial water ecosystems by combining physical, chemical, and microbiological approaches

Dr. Sai Xu
Dr. Yuxiang Zhu
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 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 contaminants
  • contamination control and treatment
  • water ecosystems
  • remediation
  • health risk

Published Papers (3 papers)

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Research

17 pages, 4457 KiB  
Article
Environmental Impact Analysis and Carbon Emission Reduction Pathways by Upgrading Wastewater Treatment Plant: A Case Study of Upgrading Project at a Wastewater Treatment Plant in Dongguan, China
by Yunxia Lu, Hao An, Chao Li and Changmin Liu
Water 2024, 16(4), 596; https://doi.org/10.3390/w16040596 - 17 Feb 2024
Viewed by 1065
Abstract
The potential environmental impact and increased operational costs associated with the upgrading and renovation of sewage treatment plants are acknowledged. This study employs the upgrading and expansion project of a municipal sewage plant in Dongguan City, Guangdong Province, as a case study. Utilizing [...] Read more.
The potential environmental impact and increased operational costs associated with the upgrading and renovation of sewage treatment plants are acknowledged. This study employs the upgrading and expansion project of a municipal sewage plant in Dongguan City, Guangdong Province, as a case study. Utilizing the principles and methods of the Life Cycle Assessment (LCA), a comprehensive assessment of the environmental benefits during the upgrading and renovation process of the sewage treatment plant, is conducted and targeted solutions are proposed. The research findings indicate that upgrading and renovating sewage treatment plants can significantly augment the adverse environmental effects of such facilities. Therefore, this study strategically proposes measures such as the utilization of clean energy, sludge resource utilization, and recycled water use as carbon emission reduction pathways. Through calculations, it is demonstrated that the utilization of clean energy and sludge resource can respectively reduce electricity consumption by 12.41% and 59.06%. Concurrently, recycled water use can lead to a reduction of 68.65% in carbon emissions, thereby markedly enhancing positive environmental outcomes. Full article
(This article belongs to the Special Issue Control and Treatment of Emerging Contaminants in Water Ecosystems)
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16 pages, 9922 KiB  
Article
Biopolymer Gellan-Gum-Based TiO2: A Green Alternative Photocatalyst Approach for Removal of Pollutants
by Marcelo Ribeiro Xisto, Dihêgo Henrique L. Damacena, Francisca Pereira de Araújo, Durcilene Alves, Luzia Maria Castro Honorio, Ramon Peña-Garcia, Luciano Almeida, Joziel Alves de Oliveira, Marcelo Barbosa Furtini, Josy Anteveli Osajima and Edson Cavalcanti da Silva-Filho
Water 2024, 16(2), 315; https://doi.org/10.3390/w16020315 - 17 Jan 2024
Viewed by 871
Abstract
Titanium dioxide TiO2/gellan gum (GG) in different compositions (1, 3, and 5% GG) was investigated to degrade methylene blue (MB) under UV light. XRD, SEM, and EDS confirmed the anatase phase. The textural properties demonstrated the formation of mesopores. The band [...] Read more.
Titanium dioxide TiO2/gellan gum (GG) in different compositions (1, 3, and 5% GG) was investigated to degrade methylene blue (MB) under UV light. XRD, SEM, and EDS confirmed the anatase phase. The textural properties demonstrated the formation of mesopores. The band gaps were 3.2 eV, 3.0 eV, and 2.9 eV. A photodegradation of MB of 95% was observed using the lowest gum concentration. It was attributed to the photogenerated radicals and the specific surface area. The FTIR spectra showed the photostability of the catalyst after successive cycles. The toxicity tests demonstrated no toxicity after dye degradation. Therefore, TiO2/GG is promising for the treatment of water. Full article
(This article belongs to the Special Issue Control and Treatment of Emerging Contaminants in Water Ecosystems)
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18 pages, 4790 KiB  
Article
Investigating the Efficacy of Oily Water Treatment at a De-Oiling Facility in the Northern Industrial Center of CINA, Hassi Messaoud: A Statistical Physics Assessment
by Asma Nour El Houda Sid, Fedoua Mokrane, Mimoune Hadj, Nihad Chagour, Amira Atamnia, Meriem Boudoukhani, Hichem Tahraoui, Mohammed Kebir, Jie Zhang and Abdeltif Amrane
Water 2023, 15(19), 3360; https://doi.org/10.3390/w15193360 - 25 Sep 2023
Viewed by 972
Abstract
Environmental protection is becoming a primary objective when choosing processes and technologies for treating oily waters resulting from hydrocarbon production. The focus of treating oily waters is to eliminate contaminants from effluents before discharging them into the receiving environment while adhering to discharge [...] Read more.
Environmental protection is becoming a primary objective when choosing processes and technologies for treating oily waters resulting from hydrocarbon production. The focus of treating oily waters is to eliminate contaminants from effluents before discharging them into the receiving environment while adhering to discharge standards. Our work aims to analyze the treatment process for oily waters in the API unit of the North Industrial Center (CINA), which involves a physical–chemical treatment using activated silica and Kurifix. The study aims to improve the treatment process used for oily water treatment to ensure water conservation for reuse. To enhance the CINA-HMD oily water treatment process, we created coagulants with different doses (C1–C6) using sodium silicate, activated silicate (sodium silicate + sulfuric acid), distilled water, Kurifix, and an oxygen scavenger while measuring pH, HC (hydrocarbon), and SS (suspended solids) levels. Coagulation and flocculation processes were used to remove suspended solids and hydrocarbons from the water. The results show that the coagulant used reduces suspended matter and hydrocarbon content and increases pH. The best treatment is achieved with a coagulant prepared with distilled water, 5% sodium silicate, and 2% sulfuric acid. The optimal dose of coagulant is 16 ppm. Automatic dosing provides better efficiency than manual dosing. The study recommends continuous verification of chemical preparation and injection, periodic cleaning of settling tanks, and monitoring of oily water entering the station. Full article
(This article belongs to the Special Issue Control and Treatment of Emerging Contaminants in Water Ecosystems)
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