Lignocellulosic pruning waste adsorbents to remove emerging contaminants from tyre wear and pharmaceuticals present in wastewater in circular economy scenario

The following work explores a sustainable approach to repurpose organic waste from poplar pruning into lignocellulosic waste-based activated carbons (LPWACs) through environmentally friendly thermochemical processes and in line with circular economy principles. The developed LPWACs, activated by potassium hydroxide (KOH) at two different temperatures and weight ratios, exhibited promising textural properties with BET surface area (SBET) and total pore volume (VTOT) reaching up to 1336 m2·g-1 and 0.588 cm3·g-1, respectively. In addition, they displayed a developed microporous structure with a significant oxygen content (up to 11 %). These activated carbons were used to remove five emerging organic pollutants from the leaching of tyre wear particles (TWPs) and pharmaceuticals present in water. The increase in oxygen groups had a negative effect on the adsorption capacity of 1H-benzotriazole (BZTL), while electrostatic influences hindered diatrizoic acid (DZT) adsorption. LPWACs effectively remove pharmaceutical and tyre contaminants, supporting the circular economy in water treatment.

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Bibliographic Details
Main Authors: Lladó, J., Díaz, A. M., Lopez-Vinent, N., Pérez, S., Montemurro, Nicola, Cruz-Alcalde, A., Lao, C., Fuente, E., Ruiz, B.
Other Authors: 0000-0002-4934-4520
Format: artículo biblioteca
Language:English
Published: Elsevier 2024-11-22
Subjects:Poplar residues, Adsorption, Efficient activated carbons, One-step alkaline activation, Organic pollutants, Ensure healthy lives and promote well-being for all at all ages, Reduce inequality within and among countries, Take urgent action to combat climate change and its impacts,
Online Access:http://hdl.handle.net/10261/373871
https://api.elsevier.com/content/abstract/scopus_id/85210537262
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