sustainability-logo

Journal Browser

Journal Browser

Water Treatment, Waste Valorization and Environment Sustainability

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Water Management".

Deadline for manuscript submissions: 31 August 2025 | Viewed by 1433

Special Issue Editors


E-Mail Website
Guest Editor
Department of Civil & Environmental Engineering, United Arab Emirates University, Al Ain 15551, United Arab Emirates
Interests: emission control technologies; biological treatment of air pollutants; fate and transport of emerging contaminants; biohydrogen production; water/wastewater treatment; biological desalination; industrial waste treatment
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Mechanical Engineering, School of Mechanical & Manufacturing Engineering (SMME), National University of Sciences & Technology, H-12, Islamabad, Pakistan
Interests: bioenergy production; biohydrogen generation; microalgae; wastewater; nanoparticles; anaerobic digestion; energy conservation; thermo-chemical conversion; biomass; biofuels; waste valorization

Special Issue Information

Dear Colleagues,

Water treatment, waste valorization, and environmental sustainability are interconnected fields that are essential to promoting a green planet and ensuring the efficient use of resources. Water treatment processes aim to remove contaminants from water to make it safe for drinking and other uses. These processes include physical, chemical, and biological methods that eliminate pollutants such as pathogens, organic and inorganic compounds, and heavy metals. Advanced technologies such as membrane filtration, activated carbon adsorption, and advanced oxidation processes have significantly improved the efficiency of water treatment systems.

Waste valorization complements water treatment by transforming waste materials into valuable products, thus reducing the burden on landfills and decreasing environmental pollution. This process involves recycling, composting, and converting waste into energy or raw materials for new products. Techniques such as anaerobic digestion, pyrolysis, and gasification enable the conversion of organic waste into biogas, biochar, and syngas, which can be used as renewable energy sources. Waste valorization not only aids in waste management but also contributes to the circular economy, thus promoting the sustainable use of resources.

By integrating water treatment and waste valorization, we can enhance environmental sustainability, minimize the depletion of resources, and reduce greenhouse gas emissions. This holistic approach is crucial for addressing the challenges of urbanization, population growth, and climate change, ensuring a sustainable future for generations to come.

We are pleased to invite you to contribute to this Special Issue, which aims to collect innovative research and advancements in these critical fields to foster a comprehensive understanding of how they intersect and contribute to sustainable development. This Special Issue seeks to highlight cutting-edge technologies, methodologies, and practices in water treatment that ensure the provision of clean and safe water for diverse applications. It also aims to showcase the latest advancements in waste valorization techniques that convert waste materials into valuable resources, thereby promoting a circular economy and reducing environmental impact.

By addressing the challenges and opportunities associated with water treatment and waste valorization, this Special Issue aims to contribute to the broader goal of environmental sustainability. The original research and comprehensive/critical reviews submitted should explore multidisciplinary approaches, case studies, and theoretical frameworks that underline the importance of employing integrated strategies in order to manage water resources, minimize waste, and mitigate pollution.

In this Special Issue, original research articles and reviews are welcome. Its scope includes, but is not limited to, the following topics:

• Integrated sustainable approaches for water, energy and the environment;

• Energy production from waste specifically related to biological and chemical pathways;

• The impact of climate change on water and energy systems;

• Advancements in renewable energy production and water treatment pathways to achieve the UN SDGs (6 and 7);

• Chemical and thermal methods for waste-to-resource conversion;

• Technological innovations for resource efficiency and conservation;

• Ecosystem restoration and biodiversity conservation through sustainable practices;

• Case studies and best practices for implementing integrated water–energy solutions.

We look forward to receiving your contributions.

Dr. Ashraf Aly Hassan
Dr. Muhammad Asad Javed
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. Sustainability 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 2400 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

  • integrated sustainable approaches for water, energy and the environment
  • energy production from waste specifically related to biological and chemical pathways
  • the impact of climate change on water and energy systemsaAdvancements in renewable energy production and water treatment pathways to achieve the UN SDGs (6 and 7)
  • chemical and thermal methods for waste-to-resource conversion
  • technological innovations for resource efficiency and conservation
  • ecosystem restoration and biodiversity conservation through sustainable practices

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

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

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Review

33 pages, 3673 KiB  
Review
Addressing Challenges for Eco-Friendly and Sustainable Wastewater Treatment Solutions Using Extremophile Microorganisms
by Hassan Mohamad Anabtawi, Amir Ikhlaq, Sandeep Kumar, Safa Rafique and Ashraf Aly Hassan
Sustainability 2025, 17(6), 2339; https://doi.org/10.3390/su17062339 - 7 Mar 2025
Viewed by 859
Abstract
The pressure on the environment from wastewater has been increasing in line with industrialization and urbanization, thus calling for better and eco-friendly solutions for wastewater treatment. Extremophilic microorganisms, which can grow in extreme conditions including high salinity, acidity, and temperature, can be applied [...] Read more.
The pressure on the environment from wastewater has been increasing in line with industrialization and urbanization, thus calling for better and eco-friendly solutions for wastewater treatment. Extremophilic microorganisms, which can grow in extreme conditions including high salinity, acidity, and temperature, can be applied in wastewater bioremediation. This review assesses the various functions of extremophiles, halophiles, thermophiles, alkaliphiles, and acidophiles in the treatment of organic and inorganic pollutants. They are capable of catabolizing a wide range of hazardous chemicals, such as polycyclic aromatic hydrocarbons, phenolic compounds, and heavy metals. Moreover, extremophilic microalgae, like Galdieria sulphuraria, have been effective in nutrient removal, biosorption of heavy metals, and pollutant conversion into valuable biomass. This dual-functioning, therefore, helps not only in wastewater treatment but also in the production of biofuel and biofertilizer, making the process cost-effective. The use of extremophiles in biofilm reactors improves pollutant removal, with less energy input. Extremophilic microorganisms can, therefore, be used to revolutionize wastewater management by providing green solutions to current treatment approaches. This review discusses the existing drawbacks of wastewater treatment along with the additional requirements needed to enhance the capability of bioremediation and potential future research. Full article
(This article belongs to the Special Issue Water Treatment, Waste Valorization and Environment Sustainability)
Show Figures

Figure 1

Back to TopTop