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Application of Biological Processes in Waste Treatment and Valorisation

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Biosciences and Bioengineering".

Deadline for manuscript submissions: 28 February 2025 | Viewed by 1066

Special Issue Editor


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Guest Editor
Department of Biological Engineering, University of Minho, 4710–057 Braga, Portugal
Interests: environmental biotechnology; wastewater biorremediation; waste valorization; anaerobic bioprocesses; micro and nanotechnology; nanomaterials engineering, photocatalysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The growing concern for environmental sustainability and the need for effective waste management have heightened the focus on innovative and efficient waste treatment methods. Biological treatments offer a promising avenue for addressing the complexities of waste treatment due to their eco-friendly and cost-effective nature. This research area is crucial as it explores the use of microorganisms and natural processes to degrade, detoxify, and recycle waste materials, thereby reducing the environmental footprint of various industries while valorising waste.

We are pleased to invite you to contribute to this Special Issue, where we aim to gather cutting-edge research and comprehensive reviews that advance our understanding and application of biological treatments in waste management. By sharing novel insights and developments, we hope to promote the adoption of these sustainable methods across different sectors.

In this Special Issue, original research articles and reviews are welcome to be submitted. Research areas may include, but are not limited to, the following:

  1. Innovations in bioremediation techniques for industrial waste;
  2. Advances in microbial treatment of municipal and agricultural waste;
  3. Application of biological and enzymatic processes in waste degradation;
  4. Biological processes for waste valorisation;
  5. Challenges in biological processes for bioremediation;
  6. Case studies on the implementation of biological waste treatment in real-world scenarios.

We look forward to receiving your contributions.

Dr. Luciana Pereira
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. Applied Sciences 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

  • waste treatment
  • industrial waste
  • municipal and agricultural waste
  • waste degradation
  • bioremediation
  • biological processes

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Published Papers (1 paper)

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Research

14 pages, 1251 KiB  
Article
Enhancing Greywater Treatment: High-Efficiency Constructed Wetlands with Seashell and Ceramic Brick Substrates
by Adriano P. Feitosa, Kelly Rodrigues, Waleska E. Martins, Sara M. P. R. Rodrigues, Luciana Pereira and Glória M. M. Silva
Appl. Sci. 2024, 14(19), 9011; https://doi.org/10.3390/app14199011 - 6 Oct 2024
Viewed by 856
Abstract
Constructed wetland (CW) systems have been recognized as a sustainable technology for wastewater treatment that can be easily integrated into the local natural environment, offering both low cost and high efficiency. In this study, synthetic greywater was treated using a vertical subsurface flow [...] Read more.
Constructed wetland (CW) systems have been recognized as a sustainable technology for wastewater treatment that can be easily integrated into the local natural environment, offering both low cost and high efficiency. In this study, synthetic greywater was treated using a vertical subsurface flow CW operated in batch mode with 7-day cycles across two phases, operated in parallel: I, non-vegetated, and II, vegetated, with Echinodorus subalatus. The mixed filter bed was composed of seashells, ceramic brick fragments, and sand. No statistically significant differences (p > 0.05) were observed between the non-vegetated and vegetated phases for most parameters. The removal efficiencies of organic matter, anionic surfactants, and total phosphorus in the non-vegetated versus vegetated phases were (91.0 ± 3.8)% versus (94.0 ± 1.1)%; (71.9 ± 14.1)% versus (60.0 ± 9.5)%; and (35.2 ± 4.6)% versus (40.2 ± 15.5)%, respectively. Phosphorus removal exceeded values reported in the literature for both phases, primarily due to the calcium present in the seashells, which increased the electrical conductivity and hardness of the effluent compared to the influent. The macrophyte exhibited leaf desiccation, possibly due to contact with greywater and its young age (30 days), which may have negatively impacted the system’s performance during the vegetated phase. Full article
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