Evaluation of permanently charged electrofibrous filters

Conference · Mon Oct 18 00:00:00 EDT 1982

OSTI ID:6730367

Biermann, A H; Lum, B Y; Bergman, W

These studies showed that loading the permanently charged filters with captured aerosols will lead to a neutralization of the filter charge. The transfer from the captured aerosol to the fiber surface and the subsequent neutralization of fiber charge. The increased efficiency is due to the additional mechanical capture by the particle deposits. The minimum efficiency obtained during the loading of solid aerosols is determined by the aerosol charge, with highly charged aerosols producing a lower minimum. Permanently charged filters lose their fiber charge when exposed to organic solvents or ionic water solutions. The fiber charge neutralization was minimized by coating the charged fibers with a polymer. Several different coating techniques were examined. Unfortunately, preventing the neutralization of fiber charge is not sufficient to prevent a deterioration of filter efficiency.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6730367
• Report Number(s): UCRL-87535; CONF-820833-14; ON: DE83001616
• Resource Relation: Conference: 17. DOE nuclear air cleaning conference, Denver, CO, USA, 1 Aug 1982
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
42 ENGINEERING
AIR FILTERS
ELECTROSTATICS
POLYMERS
AIR CLEANING
DESIGN
EFFICIENCY
CLEANING
EQUIPMENT
FILTERS
POLLUTION CONTROL EQUIPMENT
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
420202 - Engineering- Protective Structures & Equipment