Please use this identifier to cite or link to this item:
|Title:||Activated recovery of PVC from contaminated waste extension cord-cable using a weak acid||Authors:||Jia, Chunmiao
Gabriel, Jean-Christophe P.
Tay, Chor Yong
|Keywords:||Engineering::Chemical engineering||Issue Date:||2022||Source:||Jia, C., Das, P., Zeng, Q., Gabriel, J. P., Tay, C. Y. & Lee, J. (2022). Activated recovery of PVC from contaminated waste extension cord-cable using a weak acid. Chemosphere, 303(Pt 1), 134878-. https://dx.doi.org/10.1016/j.chemosphere.2022.134878||Project:||USS-IF-2018-4||Journal:||Chemosphere||Abstract:||Waste electronic and electrical equipment are complex mixtures of valuable and/or toxic materials, which pose serious challenges in their recycling or disposal, for example, electrical transmission wires insulated in polyvinyl chloride materials. These materials are frequently found contaminated with toxic chemical elements, such as Pb, Hg, Cr, or Cd, and are discarded without decontamination. To resolve this problem, we developed a microwave-assisted extraction process to remove toxic metals from plastic e-waste. We processed diluted (30 wt%) citric acid at 210 °C for 1 h inside a pressurized vessel heated by microwave, and found it was suitable not only for the extraction of the toxic metals (∼100%) but also for a significant plastic recovery (>50 wt%). To predict an optimized process window, the support vector regression machine learning algorithm was applied, which reduced the amount of experimentation required while still giving accurate results. Conditions optimized for the reference sample also led to maximum extraction of toxic metals from real-life extension cord waste. We also report that the recovered plastic's properties remained intact after the extraction.||URI:||https://hdl.handle.net/10356/161826||ISSN:||0045-6535||DOI:||10.1016/j.chemosphere.2022.134878||Schools:||School of Materials Science and Engineering
School of Chemical and Biomedical Engineering
|Research Centres:||Energy Research Institute @ NTU (ERI@N)||Rights:||© 2022 Elsevier Ltd. All rights reserved.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||ERI@N Journal Articles|
MSE Journal Articles
SCBE Journal Articles
Updated on Sep 25, 2023
Web of ScienceTM
Updated on Sep 26, 2023
Updated on Sep 23, 2023
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.