Title | Waste and Solar Energy: An Eco-Friendly Way for Glass Melting |
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ID_Doc | 7227 |
Authors | Padilla, I; Romero, M; Robla, JI; López-Delgado, A |
Title | Waste and Solar Energy: An Eco-Friendly Way for Glass Melting |
Year | 2021 |
Published | Chemengineering, 5, 2 |
Abstract | 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. |
https://www.mdpi.com/2305-7084/5/2/16/pdf?version=1617941294 |