Valorizing Waste Bamboo Tar to Novel Bead Carbonaceous Adsorbent for Volatile Organic Compound Removal
Publication: Journal of Environmental Engineering
Volume 145, Issue 12
Abstract
Activated phenol-formaldehyde (PF) beads were successfully synthesized using waste bamboo tar as the raw material via suspension polymerization method and adequate carbonization and activation. The activated PF beads were then examined by toluene adsorption tests at 2,500–20,000 ppmv by using a thermogravimetric system at operating temperatures between 25°C and 90°C. Saturated activated PF beads were also regenerated under 150°C for five cycles to understand their feasibility for adsorption-desorption applications. The experimental results showed that the activated PF beads with specific surface area were achieved, mostly contributed by micropores. Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich isotherm models could well fit the toluene adsorption data, with the Langmuir isotherm being the most suitable (). Superior thermal regeneration efficiency after five adsorption-desorption cycles further suggests that the activated PF beads derived from waste bamboo tar have great potential to recover volatile organic compounds from solvents for industrial applications.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
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Published In
Journal of Environmental Engineering
Volume 145 • Issue 12 • December 2019
Copyright
©2019 American Society of Civil Engineers.
History
Received: Feb 16, 2019
Accepted: Apr 30, 2019
Published online: Oct 12, 2019
Published in print: Dec 1, 2019
Discussion open until: Mar 12, 2020
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