| Title: | Effect of shell powder on removal of metals and volatile organic compounds (VOCs) from resin in an atmospheric-pressure microwave plasma reactor |
| Author(s): | Sanito RC; You SJ; Chang GM; Wang YF; |
| Address: | "Department of Civil Engineering, Chung Yuan Christian University, No. 200 Chung Pei Road, Chung-Li 320, Taiwan; Department of Environmental Engineering, Chung Yuan Christian University, No. 200 Chung Pei Road, Chung-Li 320, Taiwan. Department of Environmental Engineering, Chung Yuan Christian University, No. 200 Chung Pei Road, Chung-Li 320, Taiwan; R & D Centre for Membrane Technology, Department of Environmental Engineering, Chung Yuan Christian University, No. 200 Chung Pei Road, Chung-Li 320, Taiwan. Environmental Protection Bureau of Chiayi County 612, Taiwan. Department of Environmental Engineering, Chung Yuan Christian University, No. 200 Chung Pei Road, Chung-Li 320, Taiwan; R & D Centre for Membrane Technology, Department of Environmental Engineering, Chung Yuan Christian University, No. 200 Chung Pei Road, Chung-Li 320, Taiwan. Electronic address: yfwang@cycu.edu.tw" |
| DOI: | 10.1016/j.jhazmat.2020.122558 |
| ISSN/ISBN: | 1873-3336 (Electronic) 0304-3894 (Linking) |
| Abstract: | "Resin has been widely used for thermosetting printed circuit boards (PCBs) and is a key part of e-waste from scrap PCBs. It requires appropriate treatment because of its harmful elements (metals and metalloids) and organic compounds that are toxic to human health and the environment. The purpose of this study is to eliminate volatile organic compounds (VOCs) and elements (metals and metalloids) in resin via the use of powdered snail shell (Babylonia formosae) in an atmospheric-pressure microwave plasma reactor. Shell powder plays a significant role in the destruction of benzene and toluene with removal efficiency 98.8 % and 100 %, respectively, compared to quartz sand with removal efficiency 44.9 %. A high ratio of shell powder increases the inertization of metals and metalloids by more than 96 %. The crystalline structures of these materials are dominated by calcite formations (CaCO(3)), confirming the elimination of metals and metalloids. Raman spectroscopy shows that the shell powder vitrifies these elements. The use of shell powder is thus recommended to degrade hazardous substances and to vitrify elements from resin in plasma pyrolysis" |
| Keywords: | Inertization Metals Microwave plasma reactor Resin Shell powder Volatile organic compounds; |
| Notes: | "PubMed-not-MEDLINESanito, Raynard Christianson You, Sheng-Jie Chang, Gen-Mu Wang, Ya-Fen eng Research Support, Non-U.S. Gov't Netherlands 2020/04/12 J Hazard Mater. 2020 Jul 15; 394:122558. doi: 10.1016/j.jhazmat.2020.122558. Epub 2020 Mar 18" |
