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Advanced Water Treatment Strategies for the Removal of Organic and Inorganic Pollutants

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

Deadline for manuscript submissions: 29 May 2026 | Viewed by 344

Special Issue Editors


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Guest Editor
Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), ALiCE, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
Interests: advanced water-treatment technologies; waste valorization; circular economy approaches; water reuse strategies; environmental catalysis
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), ALiCE, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
Interests: ozonation; hydrogenation processes; integrated catalytic system; strcutured catalysts; advanced water treatment; catalyst design; pollutants abatement

Special Issue Information

Dear Colleagues,

Water treatment has become one of the most pressing environmental and technological challenges worldwide. Population growth, the intensification of industrial/agricultural activities, and the widespread use of pharmaceuticals and chemicals have strongly contributed to the presence of a wide variety of organic and inorganic pollutants in water resources. Many of these contaminants (ofter reffered as emerging pollutants) are not effectively removed by conventional treatment methods, raising serious concerns for both public health and environmental sustainability. Despite the significant progresses in recent decades, there is still a lack of methodologies that can ensure the efficient degradation/conversion of such complex pollutants. Traditional processes frequently prove insufficient when dealing with persistent, toxic, and bioaccumulative compounds and, as a result, research efforts have increasingly turned to the development of advanced water-treatment solutions that are able to achieve more comprehensive and selective removal. In this context, the present Special Issue welcomes the submission of research papers focusing on the application of novel advanced water-treatment strategies that can address the current challenges associated with water contamination (with different classes of compounds), seeking potential solutions for problems that conventional technologies are still unable to overcome.

Dr. Cátia A.L. Graça
Dr. Ana Sofia Guedes Gorito dos Santos
Guest Editors

Manuscript Submission Information

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Keywords

  • emerging contaminants
  • water purification
  • wastewater treatment
  • advanced water treatment
  • innovative treatment methods

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Published Papers (1 paper)

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Research

15 pages, 1963 KB  
Article
Advanced Micellar-Enhanced Ultrafiltration for the Removal of Cadmium (Cd2+) from Wastewater
by Prakriti Sapkota, Sunith B. Madduri and Raghava R. Kommalapati
Water 2026, 18(2), 191; https://doi.org/10.3390/w18020191 - 12 Jan 2026
Viewed by 201
Abstract
Heavy metals released from industrial effluents accumulate in the human body through the ecosystem, causing several health disorders. This study investigated the removal of cadmium (Cd2+) using Micellar-Enhanced Ultrafiltration (MEUF). This study employed sodium dodecyl sulfate (SDS) and flat-sheet polyethersulfone (PES) [...] Read more.
Heavy metals released from industrial effluents accumulate in the human body through the ecosystem, causing several health disorders. This study investigated the removal of cadmium (Cd2+) using Micellar-Enhanced Ultrafiltration (MEUF). This study employed sodium dodecyl sulfate (SDS) and flat-sheet polyethersulfone (PES) ultrafiltration membranes to separate Cd2+ ions from lab-simulated water. The experiments involved examining the removal efficiency of membranes without SDS usage, optimizing SDS concentration for Cd2+ removal, and evaluating the long-term membrane performance. Other parameters include analyzing the removal percentage of varying Cd2+ at constant SDS dosage, examining the effect of pH, and electrolyte concentrations on the removal of Cd2+. Several analytical characterizations were performed, such as FT-IR, and SEM. The FTIR confirms the aromatic C-H group at 620–867 cm−1, the sulfone group at 1100–1200 cm−1, and the ether group at 1230–1270 cm−1 and the SEM analysis indicates no significant fouling, which aligns with the stable flux observed over time. The result showed that the optimum SDS concentration for Cd2+ removal was 1 Critical Micellar Concentration (CMC), achieving over 99% removal. The presence of an electrolyte decreased Cd2+ removal efficiency, while the pH (3 to 9) had no effect on removal. Our findings suggest that the SDS-aided ultrafiltration process is suitable for eliminating Cd2+ from wastewater. Full article
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