| Title: | High-efficiency carbon-coated steel wool filter for controlling cooking-induced oil smoke |
| Author(s): | Wei HS; Berekute AK; Siregar S; Yu KP; |
| Address: | "Institute of Environmental and Occupational Health Sciences, National Yang Ming Chiao Tung University, Taipei, 11221, Taiwan. Institute of Environmental and Occupational Health Sciences, National Yang Ming Chiao Tung University, Taipei, 11221, Taiwan; Department of Chemistry, College of Natural and Computational Sciences, Arba Minch University, Arbaminch, Ethiopia. Institute of Environmental and Occupational Health Sciences, National Yang Ming Chiao Tung University, Taipei, 11221, Taiwan; Faculty of Mineral Technology, AKPRIND Institute of Science & Technology, Yogyakarta, Indonesia. Institute of Environmental and Occupational Health Sciences, National Yang Ming Chiao Tung University, Taipei, 11221, Taiwan. Electronic address: kpyu03@nycu.edu.tw" |
| DOI: | 10.1016/j.envpol.2023.122144 |
| ISSN/ISBN: | 1873-6424 (Electronic) 0269-7491 (Linking) |
| Abstract: | "Cooking oil smoke (COS) contains many harmful substances, such as particulate matter, formaldehyde, and phenyl esters. Currently, commercial COS treatment equipment is expensive and requires a large space. Furthermore, a large amount of agricultural waste is generated and is mainly burned onsite, producing large amounts of greenhouse gases and air pollutants. This waste could be reused as a precursor for biochar and activated carbon. Therefore, this research used saccharification and catalytic hydrothermal carbonization to process rice straw and produce compact carbon-based filters (steel wool-C) for removing cooking-induced pollutants. Scanning electron microscopy indicated that carbon layers were coated on the steel wool. The Brunauer-Emmett-Teller surface area of the carbon filter was 71.595 m(2)/g, 43 times larger than that of steel wool. The steel wool filter removed 28.9%-45.4% of submicron aerosol particles. Adding a negative air ionizer (NAI) to the filter system enhanced the particle removal efficiency by 10%-25%. The removal efficiency of total volatile organic compounds was 27.3%-37.1% with the steel wool filter, but 57.2%-74.2% with the carbon-containing steel wool filter, and the NAI improved the removal efficiency by approximately 1%-5%. The aldehyde removal efficiency of the carbon filter with NAI was 59.0%-72.0%. Conclusively, the compact steel wool-C and NAI device could be promising COS treatment equipment for households and small eateries" |
| Keywords: | *Smoke Filtration *Air Pollutants/analysis Particulate Matter/analysis Cooking Cooking oil smoke Hydrothermal synthesis Negative air ionizer Particulate matter Rice straw Total volatile organic compounds; |
| Notes: | "MedlineWei, Ho-Sheng Berekute, Abiyu Kerebo Siregar, Sepridawati Yu, Kuo-Pin eng England 2023/07/07 Environ Pollut. 2023 Oct 1; 334:122144. doi: 10.1016/j.envpol.2023.122144. Epub 2023 Jul 4" |
