Measurement and characterization of filtration efficiencies for prefilter materials used in aerosol filtration

Conference · Tue Jan 01 00:00:00 EST 1991

OSTI ID:6006580

Sciortino, J ^[1]

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1. State Univ. Coll., Fredonia, NY (USA)

In applications where the filtration of large quantities of mixed (liquid and solid) aerosols is desired, a multistage filtration system is often employed. This system consists of a prefilter, a High Efficiency Particulate Air (HEPA) filter, and any number of specialized filters particular to the filtration application. The prefilter removes liquids and any large particles from the air stream, keeping them from prematurely loading the HEPA filter downstream. The HEPA filter eliminates 99.97% of all particulates in the aerosol. The specialized filters downstream of the HEPA filter can be used to remove organic volatiles or other vapors. While the properties of HEPA filters have been extensively investigated, literature characterizing the prefilter is scarce. The purpose of this report is to characterize the efficiency of the prefilter as a function of particle size, nature of the particle (solid or liquid), and the gas flow rate across the face of the prefilter. 1 ref., 4 figs.

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6006580
• Report Number(s): ANL/CP-72646; CONF-9103136-4; ON: DE91010761
• Resource Relation: Conference: 5. national conference on undergraduate research, Pasadena, CA (USA), 21-23 Mar 1991
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
54 ENVIRONMENTAL SCIENCES
AEROSOLS
FILTRATION
AIR CLEANING SYSTEMS
EFFICIENCY
AIR FILTERS
DESIGN
NUCLEAR FACILITIES
CONTROL SYSTEMS
FLOW RATE
FLUORESCENCE SPECTROSCOPY
FLUORIMETERS
GAS FLOW
ORGANIC COMPOUNDS
PARTICLE SIZE
PARTICULATES
REACTOR COMPONENTS
TEFLON
VOLATILE MATTER
WASHING
CLEANING
COLLOIDS
DISPERSIONS
EMISSION SPECTROSCOPY
ENGINEERED SAFETY SYSTEMS
EQUIPMENT
FILTERS
FLUID FLOW
FLUORINATED ALIPHATIC HYDROCARBONS
HALOGENATED ALIPHATIC HYDROCARBONS
MATERIALS
MATTER
MEASURING INSTRUMENTS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PARTICLES
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLLUTION CONTROL EQUIPMENT
POLY
POLYETHYLENES
POLYTETRAFLUOROETHYLENE
SEPARATION PROCESSES
SIZE
SOLS
SPECTROSCOPY
SYNTHETIC MATERIALS
220502* - Nuclear Reactor Technology- Environmental Aspects- Radioactive Effluents
054000 - Nuclear Fuels- Health & Safety
053000 - Nuclear Fuels- Environmental Aspects
540130 - Environment
Atmospheric- Radioactive Materials Monitoring & Transport- (1990-)