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Innovative Technologies Applied to Sustainable Solutions: Energy, Monitoring Systems and...
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Innovative Technologies Applied to Sustainable Solutions: Energy, Monitoring Systems and New Materials Production

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

Deadline for manuscript submissions: closed (20 December 2021) | Viewed by 4098

Special Issue Editors

Dr. Cátia Magro

E-Mail Website
Guest Editor
Department of Physics, NOVA School of Science and Technology, NOVA University of Lisbon, Lisboa, Portugal
Interests: hydrogen; energy; monitoring systems; sensors; remote sensing; emerging in/organic contaminants; new materials; nanomaterials; remediation technologies; wastewater
Dr. Eduardo P. Mateus

E-Mail Website
Guest Editor
CENSE – Center for Environmental and Sustainability Research, Department of Sciences and Environmental, NOVA School of Science and Technology, NOVA University of Lisbon, Lisboa, Portugal
Interests: environmental analysis and monitoring; chromatography and mass spectrometry; characterization of complex matrices; analysis of pollutants; chemical ecology; remediation processes monitorization

Special Issue Information

Dear Colleagues,

Environmental challenges and resource constraints have led to a growing demand for sustainable technologies. Foster innovation vision based on products, processes and solutions designed to leverage a reduction in the impacts of energy production; a digitalisation of the monitoring systems; the development of smart and eco-materials, is key to build a scientific body of knowledge that seeks to break the barriers of sustainable innovation.

To reap the potential for this Special Issue on “Innovative Technologies Applied to Sustainable Solutions: Energy, Monitoring Systems and New Materials Production”, we encourage researchers to submit critical reviews and original unpublished research articles which would provide the most recent insights and advances regarding the following topics (however not limited to):

  • Sustainable energy systems
  • Hydrogen generation and storage
  • Real time monitoring
  • Innovative smart systems
  • New and advanced materials/nanomaterials
  • Materials’ life cycle analysis

Dr. Cátia Magro
Dr. Eduardo P. Mateus
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

  • eco-innovation
  • energy
  • hydrogen
  • production processes
  • monitoring systems
  • autonomous systems
  • environmental matrices reuse
  • new materials
  • nanomaterials

Published Papers (2 papers)

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Research

15 pages, 2423 KiB  
Article
Life Cycle Assessment of Mortars Produced Partially Replacing Cement by Treated Mining Residues
by Joana Almeida, Paulina Faria, Alexandra Branco Ribeiro and António Santos Silva
Appl. Sci. 2021, 11(17), 7947; https://doi.org/10.3390/app11177947 - 27 Aug 2021
Cited by 2 | Viewed by 1927
Abstract
The use of secondary mining resources to replace conventional constituents in mortars production has proved the effectiveness to preserve the quality of mechanical, physical, and chemical properties. However, minimal research has been performed to quantify the environmental impacts of mortars with mining residues. [...] Read more.
The use of secondary mining resources to replace conventional constituents in mortars production has proved the effectiveness to preserve the quality of mechanical, physical, and chemical properties. However, minimal research has been performed to quantify the environmental impacts of mortars with mining residues. In the present work, a life cycle assessment of 10 mortars was carried out. A reference mortar (100% of cement binder) and mortars with cement substitutions in 10%, 25%, and 50% by raw, electrodialytic treated, and electrodialytic plus thermal treated mining residues were analysed. The impacts were studied in six environmental categories: (1) abiotic depletion; (2) global warming; (3) ozone depletion; (4) photochemical ozone creation; (5) acidification; and (6) eutrophication potentials. The results demonstrated that mortars formulated with raw mining residues may decrease the environmental impacts, namely in global warming potential (55.1 kg CO2 eq./t modified mortar). Considering the treatments applied to mining residues, the major mitigations were reported in photochemical ozone creation (−99%), ozone depletion (−76 to −98%), and acidification potential (−90 to −94%), mainly due to the disposal impacts avoided in comparison to the reference mortar. Analysing all mortars’ constituents and their management options, products with electrodialytic treated mining residues showed higher influence in ozone depletion (18 to 52%). Coupling a thermal procedure, mining residues contributed for 99% of the abiotic depletion potential of mortars. Full article
(This article belongs to the Special Issue Innovative Technologies Applied to Sustainable Solutions: Energy, Monitoring Systems and New Materials Production)
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14 pages, 3066 KiB  
Article
Optimization of Electric Field Assisted Mining Process Applied to Rare Earths in Soils
by Carolina M. G. Pires, Jucélio T. Pereira, Alexandra B. Ribeiro, Haroldo A. Ponte and Maria José J. S. Ponte
Appl. Sci. 2021, 11(14), 6316; https://doi.org/10.3390/app11146316 - 8 Jul 2021
Cited by 5 | Viewed by 1416
Abstract
The extraction of rare earths has been studied worldwide, however some of these processes have a high cost and can cause negative environmental impacts. In order to mine these species from the soil, Electric Field Assisted Mining arises as an alternative to conventional [...] Read more.
The extraction of rare earths has been studied worldwide, however some of these processes have a high cost and can cause negative environmental impacts. In order to mine these species from the soil, Electric Field Assisted Mining arises as an alternative to conventional mining processes. Therefore, the experimental parameters can be improved to obtain better results in the extraction of these species. The aim of this paper is to propose the optimization of the Electric Field Assisted Mining process of yttrium, to obtain the optimal experimental configuration to be applied in real soils. An optimization problem was defined to obtain the maximum extraction mass of yttrium ion (Y3+), considering the limitation for the quantity of electric current density. A hybrid optimization technique was used, based on the sequential application of genetic algorithms and non-linear programming. Different optimal process configurations were obtained, considering distinct limits for the electric current density. The best experimental configuration resulted in 0.5386 V cm−1 electric field strength and 0.10 mol L−1 electrolyte concentration. This condition was reproduced in real soil, which obtained a Y3+ electromining efficiency of 41.48%. The results showed that this technique is promising for the extraction of rare earth in real soils. Full article
(This article belongs to the Special Issue Innovative Technologies Applied to Sustainable Solutions: Energy, Monitoring Systems and New Materials Production)
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