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Open AccessArticle

Waste and Solar Energy: An Eco-Friendly Way for Glass Melting

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MEDES-IETcc Group, Eduardo Torroja Institute for Construction Sciences, IETcc-CSIC. C/Serrano Galvache, 4, 28033 Madrid, Spain
2
PROMESS Group, National Centre for Metallurgical Research, CENIM-CSIC. Av. Gregorio del Amo, 8, 28040 Madrid, Spain
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MEDES-CENIM Group, National Centre for Metallurgical Research, CENIM-CSIC. Av. Gregorio del Amo, 8, 28040 Madrid, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Alírio E. Rodrigues
ChemEngineering 2021, 5(2), 16; https://doi.org/10.3390/chemengineering5020016
Received: 4 November 2020 / Revised: 31 March 2021 / Accepted: 6 April 2021 / Published: 8 April 2021
(This article belongs to the Special Issue Concentrated Solar Energy for Materials)
In this work, concentrated solar energy (CSE) was applied to an energy-intensive process such as the vitrification of waste with the aim of manufacturing glasses. Different types of waste were used as raw materials: a hazardous waste from the aluminum industry as aluminum source; two residues from the food industry (eggshell and mussel shell) and dolomite ore as calcium source; quartz sand was also employed as glass network former. The use of CSE allowed obtaining glasses in the SiO2-Al2O3-CaO system at exposure time as short as 15 min. The raw materials, their mixtures, and the resulting glasses were characterized by means of X-ray fluorescence, X-ray diffraction, and differential thermal analysis. The feasibility of combining a renewable energy, as solar energy and different waste for the manufacture of glasses, would highly contribute to circular economy and environmental sustainability. View Full-Text
Keywords: concentrated solar energy; aluminum industry waste; food industry residue; calcium silicoaluminate glasses concentrated solar energy; aluminum industry waste; food industry residue; calcium silicoaluminate glasses
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MDPI and ACS Style

Padilla, I.; Romero, M.; Robla, J.I.; López-Delgado, A. Waste and Solar Energy: An Eco-Friendly Way for Glass Melting. ChemEngineering 2021, 5, 16. https://doi.org/10.3390/chemengineering5020016

AMA Style

Padilla I, Romero M, Robla JI, López-Delgado A. Waste and Solar Energy: An Eco-Friendly Way for Glass Melting. ChemEngineering. 2021; 5(2):16. https://doi.org/10.3390/chemengineering5020016

Chicago/Turabian Style

Padilla, Isabel; Romero, Maximina; Robla, José I.; López-Delgado, Aurora. 2021. "Waste and Solar Energy: An Eco-Friendly Way for Glass Melting" ChemEngineering 5, no. 2: 16. https://doi.org/10.3390/chemengineering5020016

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