Removal of Heavy Metals and Other Pollutants from Aqueous Solutions

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

Deadline for manuscript submissions: 30 September 2024 | Viewed by 547

Special Issue Editors


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School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, USA
Interests: waste management; wastewater treatment; water quality engineering; water treatment; anammox
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Guest Editor
School of Engineering and Technology, CQUniversity Australia, Melbourne, VIC 3000, Australia
Interests: water and wastewater treatment, emerging contaminants, adsorption, water quality

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Guest Editor
Centre for Environmental Health and Engineering (CEHE), Department of Civil and Environmental Engineering, University of Surrey, Guildford GU2 7XH, UK
Interests: water-energy-food-environment nexus; water and environmental engineering; biological wastewater treatment; water reuse ; urban water management; sanitation; resource recovery from wastewater and organic waste
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Water, a crucial natural resource that is indispensable for all life forms, food production, economic progress, and human well-being, faces significant challenges due to its limited availability. Only 3% of the global water supply constitutes freshwater, with only 0.5% accessible for practical use. Unfortunately, rapid economic growth, industrialization, and population expansion have deteriorated water quality, primarily through the discharge of industrial, agricultural, and domestic wastewater. This pollution, which contains various toxins including heavy metals, inorganic and organic compounds, and emerging contaminants, poses a serious threat to water bodies and ecosystem health. Despite efforts made through wastewater treatment plants (WWTPs), the effective removal of contaminants, especially emerging contaminants (ECs) and heavy metals, remains a challenge. Consequently, researchers have been exploring novel treatment approaches to address this issue. In response, this Special Issue of the Water journal focuses on advancing our understanding of the development and application of innovative techniques for identifying and removing contaminants from aquatic environments.

Original research and review papers are encouraged, covering diverse areas such as the removal of heavy metals from aquatic environments; water and wastewater treatment utilizing physical, chemical, and biological methods; and the elimination of organic and inorganic contaminants. By addressing these critical research areas, this Special Issue aims to contribute to the preservation and restoration of water quality, ensuring its sustainability for future generations.

Dr. Amin Mojiri
Dr. Mohammed J.K. Bashir
Dr. Devendra Saroj
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at mdpi.longhoe.net 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

  • treatment of water and wastewater
  • removal of heavy metals
  • removal of inorganic contaminants
  • removal of organic contaminants
  • advanced oxidation processes (aops)
  • bioremediation
  • adsorption process
  • anammox
  • microalgae-based systems

Published Papers (1 paper)

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Research

17 pages, 2331 KiB  
Article
Cadmium Removal by Adsorption on Biochars Derived from Wood Industry and Craft Beer Production Wastes
by Daiana Simón, Cristina Palet and Adrián Cristóbal
Water 2024, 16(13), 1905; https://doi.org/10.3390/w16131905 - 3 Jul 2024
Viewed by 315
Abstract
Cadmium pollution is a serious environmental issue that has an impact on both the ecosystem and human health. As a result, its removal from water is essential. Agro-industrial wastes are suggested as a sustainable adsorbent option, as they are among the most readily [...] Read more.
Cadmium pollution is a serious environmental issue that has an impact on both the ecosystem and human health. As a result, its removal from water is essential. Agro-industrial wastes are suggested as a sustainable adsorbent option, as they are among the most readily available renewable sources worldwide. Biochar is a carbonized biomass that has been shown to be a viable and novel adsorbent. This article compares the results of cadmium adsorption on biochars derived from wood industry and craft beer production wastes. Biochars were characterized before and after adsorption. Batch adsorption results of 0.18 mmol/L Cd(II) concentration solutions indicated adsorption percentages (A%) of 99.7% and 92.2% for sawdust biochar and barley biochar, respectively. For this cadmium concentration, the sawdust biochar presented an adsorption capacity (qm) of 0.0172 mmol/L, while the barley biochar presented a value of 0.0159 mmol/L. The influence of initial Cd(II) concentration on single and multimetal solutions was studied, and a decrease in Cd(II) adsorption on sawdust biochar was observed in the presence of Ni(II) and Zn(II). The Freundlich isotherm model was found to be the best fit to the data for Cd(II) adsorption isotherms on both biochars. According to the results of this article, sawdust biochar has the best performance as an adsorbent and can be safely disposed of in building bricks at the end of its useful life. Full article
(This article belongs to the Special Issue Removal of Heavy Metals and Other Pollutants from Aqueous Solutions)
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