Modelling botanical biofiltration of indoor air streams contaminated by volatile organic compounds
| Autor: | Elisa Azzarello, Matteo Masi, Stefano Mancuso, Camilla Pandolfi, Werther Guidi Nissim |
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| Přispěvatelé: | Masi, M, Guidi Nissim, W, Pandolfi, C, Azzarello, E, Mancuso, S |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Environmental Engineering
Health Toxicology and Mutagenesis Airflow Fraction (chemistry) Botanical biofilter law.invention Reactive transport modelling Indoor air quality Bioremediation law Specific surface area Environmental Chemistry Waste Management and Disposal Filtration Mass transfer coefficient Air Pollutants Volatile Organic Compounds Environmental engineering Global sensitivity analysi Volatile organic compound Pollution Biodegradation Environmental Air Pollution Indoor Biofilter Environmental science |
| Popis: | Botanical filtration is a biological-based treatment method suitable for removing hazardous volatile organic compounds (VOCs) from air streams, based on forcing an air flow through a porous substrate and foliage of a living botanical compartment. The pathways and removal mechanisms during VOC bioremediation have been largely investigated; however, their mathematical representation is well established only for the non-botanical components of the system. In this study, we evaluated the applicability of such a modelling scheme to systems which include a botanical compartment. We implemented a one-dimensional numerical model and performed a global sensitivity analysis to measure the input parameters influence on the transient and steady biofilter responses. We found that the most sensitive parameters on the transient-state behaviour were the mass transfer coefficient between gas and solid surfaces, and the fraction of solid surfaces covered by the biofilm; the steady-state response was primarily influenced by the biofilm specific surface area and the fraction of surfaces covered by the biofilm. We calibrated the identified set of parameters and successfully validated the model against data from a pilot-scale installation. The results showed that the application of the model to systems with a botanical compartment is feasible, although under a strict set of assumptions. |
| Databáze: | OpenAIRE |
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