CARBON DIOXIDE REDUCTION POTENTIAL OF SOME PLANTS INVOLVED IN THE REMOVAL OF AIR POLLUTANT MIXTURES BY BIOFILTRATION
Gabriela Soreanu, Constantin Mardari, Catalin Tanase, Irina Volf, Liliana Lazar, Igor Cretescu
Pages: 27-33
Published: 25 Sep 2022
Views: 556
Downloads: 87
Abstract: The beneficial role of plants in earth’s atmosphere revitalization is a driving force for developing specialized plant-based air treatment biosystems. In this study, the biofiltration performance of some plants (Hedera helix, Dypsis lutescens, Chlorophytum comosum) is assessed, by their exposure to a gas stream containing either sole atmospheric carbon dioxide (plant mixture and individual plants) or both organic and inorganic compounds (toluene, xylene, carbon dioxide, nitrogen dioxide) (plant mixture). The influence of the biological matrix components (compost-based substrate, plant), plant density and the light conditions is observed, allowing pointing out some key process aspects. Except carbon dioxide, all other gaseous contaminants were completely removed under the studied conditions. The biodegradation of volatile organic compounds is an in-situ source of carbon dioxide in botanical biofilters, but this issue can be overcome by stimulating the photosynthesis process through appropriate illumination. For instance, about 60% carbon dioxide removal was reached, with the possibility to extend this performance via the specific system conditions. These results show that such plant-based designs can be considered as an emergent and affordable environmental-friendly option for simultaneously removal of carbon dioxide and other gaseous contaminants in the same unit, solving issues related to indoor or outdoor air pollution. Particularly, implementation of such biosystem for diminishing the gaseous pollutants generated from the auto traffic in urban automotive underground spaces, could significantly contribute to the efforts of reducing the environmental impact associated with auto emissions in urban places.
Keywords: biofiltration, plants, gaseous pollutants, auto traffic, air treatment
Cite this article: Gabriela Soreanu, Constantin Mardari, Catalin Tanase, Irina Volf, Liliana Lazar, Igor Cretescu. CARBON DIOXIDE REDUCTION POTENTIAL OF SOME PLANTS INVOLVED IN THE REMOVAL OF AIR POLLUTANT MIXTURES BY BIOFILTRATION. Journal of International Scientific Publications: Ecology & Safety 16, 27-33 (2022). https://www.scientific-publications.net/en/article/1002331/
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