| Title: | Effect of airflow pattern and distance on removal of particulate matters and volatile organic compounds from cigarette smoke using Sansevieria trifasciata botanical biofilter |
| Author(s): | Permana BH; Thiravetyan P; Treesubsuntorn C; |
| Address: | "School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, 10150, Thailand. School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, 10150, Thailand. Electronic address: chairat.tre@kmutt.ac.th" |
| DOI: | 10.1016/j.chemosphere.2022.133919 |
| ISSN/ISBN: | 1879-1298 (Electronic) 0045-6535 (Linking) |
| Abstract: | "Botanical biofilters can effectively remove indoor air pollution. However, to apply botanical biofilters in situ, the distance of botanical biofilter to the pollutants and airflow pattern can be important factors impacting efficiency. This study examined the removal efficiency of particulate matters (PMs) and volatile organic compounds (VOCs) from cigarette smoke, such as formaldehyde and acetone, at various distances (100 cm, 175 cm, 240 cm, and 315 cm) using a Sansevieria trifasciata botanical biofilter. The botanical biofilter was placed inside a testing room (24 m(3)) and exposed to cigarette smoke. The pollutants removal efficiency was evaluated for six cycles (24 h/cycle) and one cycle as a recovery period where botanical biofilter was placed under normal conditions for 30 days. Results showed that the botanical biofilter could remove 140-250 mug m(-3), 147-257 mug m(-3), 212-455 mug m(-3) for PM(1), PM(2.5), and PM(10), respectively, at 8 h. Total VOCs, formaldehyde, and acetone removal were 40%-65%, 46%-69%, and 31%-61% at 24 h. PMs and VOCs removal efficiency can be affected by both distance and pattern of airflow in the testing room. The highest PM(1) and PM(2.5) elimination appeared at 240 cm and 315 cm, while VOCs removal was high at 100 cm. Botanical biofilter creates airflow vortices around 100 cm, indicating low removal of PMs. This is the first study that demonstrated the effect of airflow patterns on different pollutants removal efficiency" |
| Keywords: | "*Air Pollutants/analysis *Air Pollution, Indoor/analysis *Cigarette Smoking Filtration Particulate Matter/analysis *Sansevieria *Volatile Organic Compounds/analysis Acetone Botanical biofilter Formaldehyde Particulate matters (PMs) Sansevieria trifasciata;" |
| Notes: | "MedlinePermana, Bayu Hadi Thiravetyan, Paitip Treesubsuntorn, Chairat eng England 2022/02/11 Chemosphere. 2022 May; 295:133919. doi: 10.1016/j.chemosphere.2022.133919. Epub 2022 Feb 7" |
