Effects of biofiltration on the physical-chemical-biological profile of the aerial plants used for toluene removal from waste air, revealing new opportunities for circular economy

Gabriela Lisa, Igor Cretescu, Catalin Tanase, Constantin Mardari, Nita Tudorachi, Andra-Cristina Enache, Petrisor Samoila and Gabriela Soreanu

Renewable and Sustainable Energy Reviews, 2025, vol. 207, issue C

Abstract: The development of botanical biofilters in the light of climate change issues, which can couple the advantage of C-capture from polluted air with their waste biomass valorization, is emerging. This paper evaluates the changes in physical-chemical-biological profile of aerial plants involved in such biosystems, for highlighting their functionality in the presence of chemical pollution, while providing new opportunities for process approaches in the light of circular economy. Leaf samples from T. xerographica involved in a botanical biofiltration system treating toluene in waste air have been examined in this regard, pointing out the morphological, structural and thermal particularities governing the plant performing in such biosystems. Leaf traits were particularly addressed by exploring the related plant functionality by rapport to trichome, lignin, nitrogen, pigment and thermochemical product evolving, providing new insights for waste air treatment development, biowaste generation/minimizing and biowaste valorization pathways. Based on this study, new horizons for efficient carbon valorization from waste biomass issued in biofiltration systems, are revealed.

Keywords: Botanical biofiltration; Tillandsia; Leaf traits; Carbon capture; Waste biomass management; Lignin (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1016/j.rser.2024.114890

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