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Filtration of liquid aerosols on nonwettable fibrous filters

✍ Scribed by Igor E. Agranovski; Roger D. Braddock

Publisher
American Institute of Chemical Engineers
Year
1998
Tongue
English
Weight
697 KB
Volume
44
Category
Article
ISSN
0001-1541

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✦ Synopsis

Chemical, manufacturing and refining processes often generate toxic liquid by products that are emitted as liquid aerosols in the waste stream. Wettable and nonwettable fibers can be used to filter these exhaust streams. The behavior of liquid aerosols and droplets on nonwettable fibers is studied by observation, measurement, and theory. Droplets form on the fibers, grow by accretion from the aerosol, oscillate, and then fall under the action of gravity. Observation and theory indicate that these developing droplet5 influence air and aerosol pow strongly in the filter. These droplets are akin to the dendritic structures formed by solid aerosol particles within filters, but the shapes are modified by surface tension. The total efficiency of the filter is influenced by theJe droplets, and the total filter efjiciencies are estimated using theoretical methods. The results from both approaches agree excellently in the particle-size range a& measured using particlecounting techniques. Correspondence conccming thir article should hc a d d r n s s d ti, I. k. Agranovaki.

πŸ“œ SIMILAR VOLUMES

Filtration of liquid aerosols on wettabl
Filtration of liquid aerosols on wettable fibrous filters
✍ Igor E. Agranovski; Roger D. Braddock πŸ“‚ Article πŸ“… 1998 πŸ› American Institute of Chemical Engineers 🌐 English βš– 858 KB

## Abstract Liquid aerosols produced in many manufacturing and refining processes need to be filtered from the exhaust streams. Where wettable fibers are used in the filters, the aerosol liquid collects on the fibers. Observation shows that thin films develop on the fibers, and the liquid drains do

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## Abstract The characteristics and properties of fabrics used to make filters, as well as the operation conditions, affect filtration and filter cleaning performance. Accordingly, it is appropriate to group, as done here, such characteristics in dimensionless numbers in order to compare different