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Applied Sciences
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Wastewater Resource Recovery and Reuse
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Wastewater Resource Recovery and Reuse

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

Deadline for manuscript submissions: closed (31 January 2025) | Viewed by 1012

Special Issue Editors

Dr. Zhan Qu

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Guest Editor
Institute for the Environment and Health, Nanjing University Suzhou Campus, Suzhou 215163, China
Interests: metal wastewater; resourcing; hydrometallurgy
Special Issues, Collections and Topics in MDPI journals
Dr. Xianze Wang

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Guest Editor
School of Environment, Northeast Normal University, Changchun 130117, China
Interests: resource recycling; multifunctional membrane; waste biomass
Special Issues, Collections and Topics in MDPI journals
Dr. Yuan Lin

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Guest Editor
State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210008, China
Interests: microbiome; multi-omics; wastewater treatment

Special Issue Information

Dear Colleagues,

In recent years, significant advancements have been made in the field of wastewater resource recovery and reuse, particularly concerning the treatment of metal-contaminated wastewater. Metal wastewater poses serious environmental and health risks, but through innovative recovery technologies, we can effectively extract and repurpose these valuable metals. This not only mitigates environmental pollution but also contributes to resource conservation, aligning with sustainable development goals.

The recovery of metals from wastewater involves various advanced techniques, such as chemical precipitation, membrane filtration, and electrochemical methods. These approaches have demonstrated remarkable efficiency in removing heavy metals and enabling their reuse in industrial processes. The benefits of such practices extend beyond environmental protection, offering economic advantages and promoting a circular economy.

This Special Issue aims to gather high-quality research articles that explore the latest advancements in wastewater resource recovery and reuse. We invite contributions that address innovative treatment methods, practical applications, and case studies related to the recovery of metals from wastewater.

We look forward to your submissions and to advancing the field of wastewater resource recovery together.

Dr. Zhan Qu
Dr. Xianze Wang
Dr. Yuan Lin
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. 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

  • metal wastewater
  • resource recovery
  • sustainability
  • wastewater reuse
  • energy saving
  • pollution reduction
  • carbon reduction

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Published Papers (1 paper)

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Research

14 pages, 1005 KiB  
Article
Bioremediation of Non-Essential Toxic Elements Using Indigenous Microbes in Soil Following Irrigation with Treated Wastewater
by Itumeleng Kgobokanang Jacob Kekana, Pholosho Mmateko Kgopa and Lawrence Munjonji
Appl. Sci. 2025, 15(5), 2299; https://doi.org/10.3390/app15052299 - 21 Feb 2025
Viewed by 781
Abstract
Treated wastewater (TWW) is recognised as an alternative irrigation source to mitigate global water scarcity for irrigation purposes. However, one of the challenges of using TWW as an irrigation source is the accumulation of non-essential toxic elements in soil post-irrigation. Thus, this study [...] Read more.
Treated wastewater (TWW) is recognised as an alternative irrigation source to mitigate global water scarcity for irrigation purposes. However, one of the challenges of using TWW as an irrigation source is the accumulation of non-essential toxic elements in soil post-irrigation. Thus, this study determined whether indigenous microbes that are tolerant to toxic elements would remediate non-essential toxic elements in contaminated soil following irrigation with TWW. Soil from a fallowed field at the University of Limpopo Experimental Farm was irrigated with TWW in pots for 12 weeks. After that, an incubation study was established to assess the abilities of Escherichia coli, Staphylococcus aureus, Aspergillus flavus, and Pseudomonas aeruginosa to remediate the contaminated soil over 12 weeks. Both water and soil samples (non-contaminated, contaminated, and remediated) were analysed for toxic elements: Aluminium (Al), Arsenic (As), Chromium (Cr), Cadmium (Cd), and Lead (Pb). Data were analysed using GenStat 20th edition. The results revealed that irrigation with TWW increased the concentration of non-essential toxic elements in soil by 110%, 31%, 31%, 31%, and 54% for Al, As, Cr, Cd, and Pb, respectively. The inoculation of soil with indigenous microbes led to the decline in the concentration of non-essential toxic elements in soil. Furthermore, soils inoculated with S. aureus led to a reduction in Cr to levels below those observed prior to irrigation with TWW. Overall, the findings of the study effectively convey that these indigenous microbes can be used for bioremediation. Full article
(This article belongs to the Special Issue Wastewater Resource Recovery and Reuse)
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