Workplace exposure to titanium dioxide nanopowder released from a bag filter system
- Workplace exposure to titanium dioxide nanopowder released from a bag filter system
- 지준호; 김종범; 이광재; 노정훈; 육세진; 조소혜; 배귀남
- workplace; exposure; titanium dioxide; nanopowder; bag filter system
- Issue Date
- BioMed research international
- VOL 2015, 1-9
- Many researchers who use laboratory-scale synthesis systems to manufacture nanomaterials could be easily exposed to airborne nanomaterials during the research and development stage. This study used various real-time aerosol detectors to investigate the presence of nanoaerosols in a laboratory used to manufacture titanium dioxide (TiO2). The TiO2 nanopowders were produced via flame synthesis and collected by a bag filter system for subsequent harvesting. Highly concentrated nanopowders were released from the outlet of the bag filter system into the laboratory.The fractional particle collection efficiency of the bag filter system was only 20% at particle diameter of 100 nm,which ismuch lower than the performance of a high-efficiency particulate air (HEPA) filter. Furthermore, the laboratory hood systemwas inadequate to fully exhaust the air discharged from the bag filter system. Unbalanced air flow rates between bag filter and laboratory hood systems could result in high exposure to nanopowder in laboratory settings. Finally, we simulated behavior of nanopowders released in the laboratory using computational fluid dynamics (CFD).
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.