| Autor: |
Zongyuan Hou, Chen Peng, Meng Guangyuan, Xinwan Zhang, Lehua Zhang, Zhu Lu |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Journal of Saudi Chemical Society, Vol 26, Iss 6, Pp 101557- (2022) |
| Druh dokumentu: |
article |
| ISSN: |
1319-6103 |
| DOI: |
10.1016/j.jscs.2022.101557 |
| Popis: |
Discarded cathode-ray tube (CRT) glass is considered harmful waste because it contains poisonous lead. Hence, a study on the disposal of CRT glass and the potential risk of lead leaching is needed. This work performs the research on the panel-funnel glass separation method, an important step for CRT glass recycling. In the thermosol method, moderate temperatures of 565 ∼ 572 °C and 5 ∼ 7 min holding time are suitable for a complete panel-funnel glass separation. The acid etching method can achieve panel-funnel glass separation with low energy consumption by using a 10 wt% nitric acid solution as an agent. Panel-funnel glass can be quickly separated by a mechanical cutting method within four minutes and achieve a high glass recovery. A glass size of 2–10 mesh, a rotary shaking speed of 240 rpm, and a retention time of 120 h can accelerate the lead leaching of 133.34 mg/L from CRT glass in the leaching solution at pH 4.93. This work gives a systematic exploration into panel-funnel glass separation and lead leaching from CRT glass, which is potentially beneficial for CRT glass waste recycling, management, and disposal. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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