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Advanced Technologies on Water and Wastewater Treatment
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Advanced Technologies on Water and 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: 20 August 2025 | Viewed by 681

Special Issue Editor

Dr. Achisa Mecha Cleophas

E-Mail Website
Guest Editor
Department of Environmental Sciences, University of Arizona, Tucson, AZ 85721, USA
Interests: water and wastewater treatment; membrane separation; adsorption; advanced oxi-dation processes; nanotechnology; environmental impact assessment; water–energy nexus

Special Issue Information

Dear Colleagues,

As global water scarcity, pollution, and environmental degradation continue to escalate, there is an urgent need for sustainable, efficient, and cost-effective methods to treat and reuse water. This Special Issue on “Advanced Technologies on Water and Wastewater Treatment” provides an opportunity to showcase the innovative solutions and emerging technologies that are reshaping the landscape of water and wastewater treatment. It covers a diverse range of cutting-edge technologies, including advanced filtration systems, membrane technologies, nanomaterials, advanced oxidation processes, electrochemical processes, catalytic processes, and biological treatments. It also welcomes submissions exploring novel approaches in resource recovery, such as nutrient and energy extraction, and the integration of smart monitoring systems for real-time performance optimization. By presenting recent advancements in these fields, it aims to foster knowledge exchange, inspire interdisciplinary collaborations, and drive the development of solutions that can meet the growing demands for safe, clean water and the protection of aquatic ecosystems.

Dr. Achisa Mecha Cleophas
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

  • water and wastewater treatment
  • advanced oxidation processes
  • membrane separation
  • electrochemical processes
  • nanotechnology
  • desalination
  • water quality monitoring
  • water reuse

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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Research

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11 pages, 873 KiB  
Article
Valorization of Golden Mussel Shells for Sustainable Phosphorus Recovery in Wastewater Treatment
by Danielle Andrade de Souza, Juliano Curi de Siqueira, Rodolfo Appoloni Crippa, Andre Luiz Watanabe, Paulo dos Santos Pompeu, Jéssica Cristina Teodoro, Ivan Célio Andrade Ribeiro and Mateus Pimentel de Matos
Water 2025, 17(10), 1528; https://doi.org/10.3390/w17101528 - 19 May 2025
Viewed by 417
Abstract
The golden mussel (Limnoperna fortunei) poses environmental and infrastructural challenges due to its ability to attach to various substrates and form dense colonies. These colonies are difficult to remove and threaten hydroelectric power stations, water treatment plants and fishing activities. However, [...] Read more.
The golden mussel (Limnoperna fortunei) poses environmental and infrastructural challenges due to its ability to attach to various substrates and form dense colonies. These colonies are difficult to remove and threaten hydroelectric power stations, water treatment plants and fishing activities. However, the high calcium carbonate content of golden mussel shells (GMSs) presents an opportunity for phosphorus (P) recovery from wastewater, addressing both waste management and resource scarcity. This study evaluated the effectiveness of GS for P recovery from synthetic and real wastewater. Batch experiments were conducted to assess P recovery capacity under varying adsorbent dosages, pH levels, contact times and isotherm conditions (Langmuir, Freundlich and Temkin). Also, the chemical and physical analyses of GMSs were performed to elucidate the mechanisms of P recovery. The Freundlich isotherm model best describes the process, while the Langmuir model suggests a maximum recovery potential of approximately 59.9 mg P g−1 of GMS, demonstrating a P recovery efficiency of up to 60.7% at a P concentration of 40–50 g L−1 and a contact time of 3 h. Due to the predominance of negative charges, it was concluded that the precipitation was the major mechanism for P recovery by GS. This study highlights the potential of GMSs as a sustainable and low-cost material for phosphorus recovery in wastewater treatment, offering a promising solution for both waste valorization and environmental management contributing to a circular economy. Full article
(This article belongs to the Special Issue Advanced Technologies on Water and Wastewater Treatment)
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Review

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20 pages, 4612 KiB  
Review
A Review of Low-Cost Point-of-Use Water Treatment Solutions Addressing Water Access and Quality in Resource-Limited Settings
by Dorcas Cheptoo Sombei, Cleophas Achisa Mecha and Martha N. Chollom
Water 2025, 17(12), 1827; https://doi.org/10.3390/w17121827 - 19 Jun 2025
Abstract
Access to safe, clean drinking water is a critical challenge across many resource-constrained settings, especially in developing economies. Large-scale water treatment technologies are often available in urban areas, whereas such centralized systems are unavailable in rural and remote areas due to high infrastructure [...] Read more.
Access to safe, clean drinking water is a critical challenge across many resource-constrained settings, especially in developing economies. Large-scale water treatment technologies are often available in urban areas, whereas such centralized systems are unavailable in rural and remote areas due to high infrastructure costs, rugged terrains, and maintenance challenges. To address this challenge, point-of-use (PoU) water treatment systems can fill this critical gap. This study critically evaluates the role low-cost PoU water treatment solutions play as a promising alternative to address water access and quality aspects in remote rural areas. The study explores the present state of global water sources, the challenges of water scarcity and pollution, and the limitations of existing large-scale treatment technologies. It highlights the motivation behind PoU systems and provides an in-depth analysis of various low-cost technologies, including operational principles, performance efficiency, and economic viability. Embedded in this study is a concise evaluation of the sustainability of these solutions in addressing water access and quality challenges in resource-limited regions. Finally, the study proposes solutions and perspectives on improving PoU systems and scale-up of the systems for large-scale applications to facilitate increased access to clean and safe water. Full article
(This article belongs to the Special Issue Advanced Technologies on Water and Wastewater Treatment)
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