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

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...

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Bibliographic Details
Published in:Renewable & sustainable energy reviews 2025-01, Vol.207, p.114890, Article 114890
Main Authors: Lisa, Gabriela, Cretescu, Igor, Tanase, Catalin, Mardari, Constantin, Tudorachi, Nita, Enache, Andra-Cristina, Samoila, Petrisor, Soreanu, Gabriela
Format: Article
Language:English
Subjects:
Botanical biofiltration
Carbon capture
Leaf traits
Lignin
Tillandsia
Waste biomass management
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Summary: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. •Aerial plant biomass in biofilters is addressed in the frame of circular economy.•Biomass characteristics profile depends on environmental characteristics.•Concurrently interaction between different factors occur at leaf interface.•VOC can serve as C-source, enhancing the lignin content in plant.•Lignin valorization from waste biomass is a new opportunity in air biofiltration.
ISSN:1364-0321
DOI:10.1016/j.rser.2024.114890