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Advanced Technology of Wastewater Treatment
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Advanced Technology of Wastewater 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 (25 October 2023) | Viewed by 5152

Special Issue Editors

Dr. Abdollah Dargahi

E-Mail Website
Guest Editor
Social Determinants of Health Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
Interests: electrocatalytic degradation; advanced oxidation processes; three-dimensional electrochemical; photocatalytic degradation; treatment of xenobiotic contaminants; photooxidation
Dr. Amir Shabanloo

E-Mail Website
Guest Editor
Department of Environmental Health Engineering, Hamadan University of Medical Sciences, Hamadan, Iran
Interests: wastewater treatment; advanced oxidation processes; electrocatalytic degradation; three-dimensional electrochemical reactor; environmental chemistry

Special Issue Information

Dear Colleagues,

The physical, chemical, and microbiological quality of water sources are vital for human health and the environment. The discharge of wastewater and effluents containing toxic organic and mineral substances causes pollution of water sources and environmental deterioration. Innovative advanced oxidation processes (AOPs) are effectively designed and employed today for the mineralization of various organic pollutants and the treatment of industrial wastewater. Unfortunately, the production of toxic intermediates, high energy consumption, and low efficiency are common problems of AOPs. However, these limitations can be overcome by using integrated processes.

Relevant Topics:

  • Application of AOPs based on sulfate radicals and hydroxyl radicals for industrial wastewater treatment.
  • Electrocatalytic degradation processes based on active and non-active anodes to improve the chemical and microbiological quality of wastewater.
  • Identification of toxic intermediates produced during AOPs and their fate.
  • Modeling and optimization of AOPs.
  • Design and application of innovative AOPs for wastewater treatment.

Dr. Abdollah Dargahi
Dr. Amir Shabanloo
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

  • advanced oxidation process
  • electrocatalytic degradation
  • photocatalytic degradation
  • treatment of xenobiotic contaminants
  • wastewater treatment
  • emerging contaminants treatment
  • wastewater pre-treatment technologies
  • microbial fuel cells for wastewater treatment

Published Papers (2 papers)

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Research

20 pages, 9285 KiB  
Article
Design and Preparation of Magnetically-Oriented Poly(styr-co-MMA)-3MPS Capped Fe(ZnO) Hybrid Microspheres for Ion Exchange Removal of Toxic Pollutants from Wastewater
by Sahar Fatima, Muhammad Imran, Farah Kanwal, Ayesha Javaid, Shoomaila Latif and Grzegorz Boczkaj
Water 2023, 15(9), 1761; https://doi.org/10.3390/w15091761 - 3 May 2023
Cited by 6 | Viewed by 2095
Abstract
In this work, polymeric microspheres derived from polystyrene-co-methyl methacrylate embedded with magnetic ZnO nanoparticles (poly(styrene-co-MMA)-3MPS-Fe (ZnO)) were synthesized using the suspension polymerization method. The surfaces of polymeric Fe(ZnO) microspheres were improved by functionalization with amino and sulphonate groups. The physicochemical analysis indicated a [...] Read more.
In this work, polymeric microspheres derived from polystyrene-co-methyl methacrylate embedded with magnetic ZnO nanoparticles (poly(styrene-co-MMA)-3MPS-Fe (ZnO)) were synthesized using the suspension polymerization method. The surfaces of polymeric Fe(ZnO) microspheres were improved by functionalization with amino and sulphonate groups. The physicochemical analysis indicated a large number of positively charged (anion exchange) groups (91 mmol/g) on the amine-modified polymeric microsphere (MFZPI) and a large number of negatively charged (cation exchange) groups (90 mmol/g) on the sulphonate-modified polymeric microsphere (SMFZPI)—revealing ambivalent character of obtained sorbent. The characterization of the synthesized compounds using various analytical techniques such as TGA, FTIR, XRD, SEM/EDX, UV-VIS and VSM indicated that synthesized microspheres were thermally stable, semi-crystalline in structure with hollow irregular morphology, optically active in UV region and slightly magnetic in nature. Due to the introduction of groups having ion exchange properties, these modified poly(styrene-co-MMA)-3MPS-Fe(ZnO) microspheres were used for the ion exchange sorptive removal of Cr(III) and fluorescein from aqueous matrix. The equilibrium sorption capacity of Cr(III) was 16.79 mg/g whereas of fluorescein was 12.03 mg/g under optimized conditions. Therefore, SMFZPI was found to be a promising sorbent for both cationic heavy metals and anionic dyes due to the presence of both acidic and basic groups. The mathematical modelling revealed that the sorption phenomenon followed pseudo-second-order kinetics with Freundlich equilibrium isotherm, indicating multilayer chemisorption of the pollutants on the synthesized ion exchange sorbents. This work establishes the utilization of polymeric magnetic ZnO-based ion exchange sorbents to effectively remove harmful toxins from wastewater. Full article
(This article belongs to the Special Issue Advanced Technology of Wastewater Treatment)
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20 pages, 9679 KiB  
Article
Chlorine-Resistant Loose Nanofiltration Membranes Fabricated via Interfacial Polymerization Using Sulfone Group-Containing Amine Monomer for Dye/Salt Separation
by Longwei Huang, Ke Zheng, Yuting Jin and Shaoqi Zhou
Water 2023, 15(8), 1456; https://doi.org/10.3390/w15081456 - 8 Apr 2023
Cited by 2 | Viewed by 2090
Abstract
Fabrication of high-dye/salt-separation-performances and chlorine-resistant nanofiltration (NF) membranes are crucial for dye desalination. In this study, a thin-film composite NF membrane (PES–DPS) was prepared through the interfacial polymerization of 3,3′-diaminodiphenyl sulfone (DPS) and trimesoyl chloride. Because of the low reactivity and the presence [...] Read more.
Fabrication of high-dye/salt-separation-performances and chlorine-resistant nanofiltration (NF) membranes are crucial for dye desalination. In this study, a thin-film composite NF membrane (PES–DPS) was prepared through the interfacial polymerization of 3,3′-diaminodiphenyl sulfone (DPS) and trimesoyl chloride. Because of the low reactivity and the presence of the sulfone group (O=S=O) of DPS, the prepared PES–DPS membrane provided a relatively loose polyamide layer and exhibited excellent chlorine resistance, enhancing the membrane water flux and dye/salt separation performances. Furthermore, the influence of DPS concentration was systematically investigated. The optimal membrane PES–DPS–1 exhibited high direct Blue 71 rejection (99.1%) and low NaCl rejection (8.7%). Meanwhile, the PES–DPS–1 membrane displayed highly pure water flux (49.4 L·m−2·h−1·bar−1) even at a low-operating pressure (2 bar). Moreover, no significant difference in dye rejection was observed when the membrane was immersed in NaClO solution (pH = 4.0, 2000 ppm) for 12 h, thereby demonstrating its outstanding chlorine stability. In summary, this work provided a new monomer for the preparation of novel polyamide membranes to achieve excellent separation performances and chlorine resistances. Full article
(This article belongs to the Special Issue Advanced Technology of Wastewater Treatment)
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