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Utilization and Repurposing of Industrial, Construction and Agricultural Waste and By-Products in Environmental Remediation: An Approach to a Circular Economy

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Green Materials".

Deadline for manuscript submissions: 20 February 2025 | Viewed by 533

Special Issue Editor


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Guest Editor
Associate Professor in Chemistry, School of Science, University of Waikato, Hamilton, New Zealand
Interests: biomedical materials; calcium phosphate chemistry; metal colloids; IR spectroelectrochemistry; repurposing of byproducts/waste; application of IR spectroscopy; solid state NMR; drug delivery
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Special Issue Information

Dear Colleagues,

As our population grows, so too does the strain on the environment, given the greater utilisation of water resources, higher industrial activity, and other activities, such as intensive agriculture, which place a strain on resources and lead to by-products which may be sent to landfills. These waste by-products have the potential to be utilised for remediating the environment via their use as adsorbents, which not only provides benefits in terms of preventing its being sent to a landfill, but also cost advantages. In doing so, we begin an approach to a circular economy which, even if partially achieved, will provide benefits to the planet and its environment via the more efficient utilisation of resources

This Special Issue seeks novel experimental (or experimental with modelling) studies that utilise waste by-products from industrial, agricultural, or construction sources for environmental remediation, such as in the treatment of water or other applications. Such studies should show the potential for using these, hence avoiding the need for such materials to be sent to landfills. The studies could illustrate the materials being used to achieve various purposes, such as the adsorption of harmful substances from water or from air, for instance. Studies should demonstrate the good characterisation of the materials via various techniques, clearly proving their value as potential materials in environmental remediation. While welcoming fundamental bench scale studies, we would also appreciate to see studies where the scale-up from the bench has been demonstrated, alongisde its benefits. Manuscripts will be subject to rigorous peer review.

Dr. Michael R. Mucalo
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.

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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

  • waste
  • by-products
  • remediation
  • adsorption
  • repurposing
  • circular economy

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Published Papers (1 paper)

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Research

22 pages, 12179 KiB  
Article
Investigation of the Potential of Repurposing Medium-Density Fiberboard Waste as an Adsorbent for Heavy Metal Ion Removal
by Kavitha H. Ranaweera, Megan N. C. Grainger, Amanda French, Narayana Sirimuthu and Michael Mucalo
Materials 2024, 17(14), 3405; https://doi.org/10.3390/ma17143405 - 10 Jul 2024
Viewed by 446
Abstract
Medium-density fiberboard (MDF) waste generation has increased steadily over the past decades, and therefore, the investigation of novel methods to recycle this waste is very important. The potential of repurposing MDF waste as an adsorbent for the treatment of Cd(II), Cu(II), Pb(II), and [...] Read more.
Medium-density fiberboard (MDF) waste generation has increased steadily over the past decades, and therefore, the investigation of novel methods to recycle this waste is very important. The potential of repurposing MDF waste as an adsorbent for the treatment of Cd(II), Cu(II), Pb(II), and Zn(II) ions in water was investigated using MDF offcuts. The highest adsorption potential in single-metal ion solution systems was observed for Pb(II) ions. The experimental data of Pb(II) ions fit well with the Freundlich isotherm and pseudo-second-order kinetic models. Complexation and electrostatic interactions were identified as the adsorption mechanisms. The adsorption behavior of multi-metal ion adsorption systems was investigated by introducing Cd(II) ions as a competitive metal ion. The presence of the Cd(II) ions reduced the adsorption potential of Pb(II) ions, yet the preference for the Pb(II) ions remained. Regeneration studies were performed by using 0.1 M HCl as a regeneration agent for both systems. Even though a significant amount of adsorbed metal ions were recovered, the adsorption potential of the MDF was reduced in the subsequent adsorption cycles. Based on these results, MDF fines have the potential to be used as an economical adsorbent for remediation of wastewater containing heavy metal ions. Full article
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