Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
EN
|
EL
| URI | http://purl.tuc.gr/dl/dias/D7F98E85-3D5A-4684-BDD0-AF4806B29C4E | - |
| Αναγνωριστικό | http://www.sciencedirect.com/science/article/pii/S0956053X15003797 | - |
| Αναγνωριστικό | https://doi.org/10.1016/j.wasman.2015.05.025 | - |
| Γλώσσα | en | - |
| Μέγεθος | 11 pages | en |
| Τίτλος | Leaching capacity of metals–metalloids and recovery of valuable materials from waste LCDs | en |
| Δημιουργός | Gidarakos Evaggelos | en |
| Δημιουργός | Γιδαρακος Ευαγγελος | el |
| Δημιουργός | Chachladakis Ioannis | en |
| Δημιουργός | Χαχλαδακης Ιωαννης | el |
| Δημιουργός | Savvilotidou Vasiliki | en |
| Δημιουργός | Σαββιλωτιδου Βασιλικη | el |
| Εκδότης | Elsevier | en |
| Περίληψη | The purpose of Directive 2012/19/EU which is related to WEEE (Waste Electrical and Electronic Equipment), also known as “e-waste”, is to contribute to their sustainable production and consumption that would most possibly be achieved by their recovery, recycling and reuse. Under this perspective, the present study focused on the recovery of valuable materials, metals and metalloids from LCDs (Liquid Crystal Displays). Indium (In), arsenic (As) and stibium (Sb) were selected to be examined for their Leaching Capacity (R) from waste LCDs. Indium was selected mainly due to its rarity and preciousness, As due to its high toxicity and wide use in LCDs and Sb due to its recent application as arsenic’s replacement to improve the optimal clarity of a LCD screen. The experimental procedure included disassembly of screens along with removal and recovery of polarizers via thermal shock, cutting, pulverization and digestion of the shredded material and finally leaching evaluation of the aforementioned elements. Leaching tests were conducted under various temperatures, using various solid:liquid (S/L) ratios and solvents (acid mixtures), to determine the optimal conditions for obtaining the maximum leaching capacities. The examined elements exhibited different leaching behaviors, mainly due to the considerable diversity in their inherent characteristic properties. Indium demonstrated the highest recovery percentages (approximately 60%), while the recovery of As and Sb was unsuccessful, obtaining poor leaching percentages (0.16% and 0.5%, respectively). | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2015-11-17 | - |
| Ημερομηνία Δημοσίευσης | 2015 | - |
| Θεματική Κατηγορία | WEEE | en |
| Θεματική Κατηγορία | LCDs | en |
| Θεματική Κατηγορία | Polarizer | en |
| Θεματική Κατηγορία | ITO glass | en |
| Θεματική Κατηγορία | Metal recovery | en |
| Θεματική Κατηγορία | Metalloid recovery | en |
| Βιβλιογραφική Αναφορά | V. Savvilotidou, J. N. Hahladakis and E. Gidarakos, "Leaching capacity of metals–metalloids and recovery of valuable materials from waste LCDs", Waste Manage., vol. 45, pp. 314-324, Nov. 2015. doi:10.1016/j.wasman.2015.05.025 | en |
Copyright © DIAS 2013
