Periodic Flow Purging System for Harvesting Fibers from Screens
Abstract Fiber length is believed to be an important factor in determining various toxicological responses to asbestos and other bio-persistent fibers. Length classification of fibers thus is crucial for toxicological assessment. Nylon mesh screens have been shown to be effective in separating fiber...
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| Format: | Article |
| Language: | English |
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Springer
2021-03-01
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| Series: | Aerosol and Air Quality Research |
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| Online Access: | https://doi.org/10.4209/aaqr.210033 |
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| author | Bon Ki Ku Gregory Deye Leonid A. Turkevich |
| author_facet | Bon Ki Ku Gregory Deye Leonid A. Turkevich |
| author_sort | Bon Ki Ku |
| collection | DOAJ |
| description | Abstract Fiber length is believed to be an important factor in determining various toxicological responses to asbestos and other bio-persistent fibers. Length classification of fibers thus is crucial for toxicological assessment. Nylon mesh screens have been shown to be effective in separating fibers by length. In this note, we report development of a purging flow system for harvesting fibers from a nylon net screen, with the aim of separating airborne fibers by length. We evaluated the performance of this purging flow system by examining the lengths of glass fibers collected on a screen. Fibers aerosolized by vortex shaking were provided to 10 µm and 20 µm mesh screens, and the fibers collected on each screen were purged periodically with a backflow. The length of the purged fibers was measured and compared to that of fibers washed from the screen. The mean length of fibers on the screen is larger than that of the fibers in the original test aerosol. The mean length of the backflow purged fibers is smaller than that of the fibers from the washed screen. The results indicate that the purging flow system with screens can harvest the longer fibers from the original aerosol. |
| format | Article |
| id | doaj-art-4166d5b3ea634148b9e380697a7a0533 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2021-03-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-4166d5b3ea634148b9e380697a7a05332025-02-09T12:19:53ZengSpringerAerosol and Air Quality Research1680-85842071-14092021-03-012161710.4209/aaqr.210033Periodic Flow Purging System for Harvesting Fibers from ScreensBon Ki Ku0Gregory Deye1Leonid A. Turkevich2Health Effects Laboratory Division (HELD), National Institute for Occupational Safety and Health (NIOSH), Centers for Disease Control and Prevention (CDC)Health Effects Laboratory Division (HELD), National Institute for Occupational Safety and Health (NIOSH), Centers for Disease Control and Prevention (CDC)Division of Field Studies & Engineering (DFSE), National Institute for Occupational Safety and Health (NIOSH), Centers for Disease Control and Prevention (CDC)Abstract Fiber length is believed to be an important factor in determining various toxicological responses to asbestos and other bio-persistent fibers. Length classification of fibers thus is crucial for toxicological assessment. Nylon mesh screens have been shown to be effective in separating fibers by length. In this note, we report development of a purging flow system for harvesting fibers from a nylon net screen, with the aim of separating airborne fibers by length. We evaluated the performance of this purging flow system by examining the lengths of glass fibers collected on a screen. Fibers aerosolized by vortex shaking were provided to 10 µm and 20 µm mesh screens, and the fibers collected on each screen were purged periodically with a backflow. The length of the purged fibers was measured and compared to that of fibers washed from the screen. The mean length of fibers on the screen is larger than that of the fibers in the original test aerosol. The mean length of the backflow purged fibers is smaller than that of the fibers from the washed screen. The results indicate that the purging flow system with screens can harvest the longer fibers from the original aerosol.https://doi.org/10.4209/aaqr.210033Glass fiberFiber lengthNylon mesh screensLength separationPurging system |
| spellingShingle | Bon Ki Ku Gregory Deye Leonid A. Turkevich Periodic Flow Purging System for Harvesting Fibers from Screens Aerosol and Air Quality Research Glass fiber Fiber length Nylon mesh screens Length separation Purging system |
| title | Periodic Flow Purging System for Harvesting Fibers from Screens |
| title_full | Periodic Flow Purging System for Harvesting Fibers from Screens |
| title_fullStr | Periodic Flow Purging System for Harvesting Fibers from Screens |
| title_full_unstemmed | Periodic Flow Purging System for Harvesting Fibers from Screens |
| title_short | Periodic Flow Purging System for Harvesting Fibers from Screens |
| title_sort | periodic flow purging system for harvesting fibers from screens |
| topic | Glass fiber Fiber length Nylon mesh screens Length separation Purging system |
| url | https://doi.org/10.4209/aaqr.210033 |
| work_keys_str_mv | AT bonkiku periodicflowpurgingsystemforharvestingfibersfromscreens AT gregorydeye periodicflowpurgingsystemforharvestingfibersfromscreens AT leonidaturkevich periodicflowpurgingsystemforharvestingfibersfromscreens |