文献类型：期刊文献

英文题名：Lead leaching behaviors during panel-funnel glass waste separation from cathode-ray tube glass using thermosol, acid etching or mechanical cutting methods

作者：Hou, Zongyuan[1,2];Peng, Chen[1,3];Meng, Guangyuan[1];Zhang, Xinwan[1];Zhang, Lehua[1,3];Lu, Zhu[1,4]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, Shanghai 200237, Peoples R China;[2]Evonik Specialty Chem Shanghai Co Ltd, Shanghai 201108, Peoples R China;[3]East China Univ Sci & Technol, Natl Engn Lab Ind Wastewater Treatment, Shanghai 200237, Peoples R China;[4]Mail box 379 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2022

卷号：26

期号：6

外文期刊名：JOURNAL OF SAUDI CHEMICAL SOCIETY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000885453300001)】；

基金：This work was supported by the Special Fund from State Key Joint Laboratory of Environment Simulation and Pollu- tion Control (18K10ESPCT) . Authors appreciate the helps form Dr. Yan Ying for her suggestions.

语种：英文

外文关键词：CRT glass; Recycling; E -waste; Lead

摘要：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 impor-tant step for CRT glass recycling. In the thermosol method, moderate temperatures of 565 -572 degrees C and 5 -7 min holding time are suitable for a complete panel-funnel glass separation. The acid etch-ing 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 cut-ting 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 poten-tially beneficial for CRT glass waste recycling, management, and disposal. (c) 2022 The Authors. Published by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).