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Rapid inactivation of airborne bacteria using atmospheric pressure dielectric barrier grating discharge
Please use this identifier to cite or link to this item:
http://hdl.handle.net/1860/2586
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| Title: | Rapid inactivation of airborne bacteria using atmospheric pressure dielectric barrier grating discharge |
| Authors: | Gallagher Jr., Michael J.
Vaze, Nachiket
Gangoli, Shailesh Pradeep
Vasilets, Victor N.
Gutsol, Alexander F.
Milovanova, Tatyana N.
Anandan, Shivanthi
Murasko, Donna M.
Fridman, Alexander A. |
| Keywords: | Airbornemicroorganism
Air Sterilization
Dielectric Barrier Discharge
E. Coli
Nonthermal Plasma |
| Issue Date: | Oct-2007 |
| Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
| Citation: | IEEE Transactions on Plasma Science, 35(5): pp. 1501-1510. |
| Abstract: | Dielectric barrier discharge plasma has been known
to inactivate many different microorganisms on surfaces when
treatment times are on the order of seconds or minutes in duration.
In this paper, a unique plasma air cleaning facility was created
which combines a dielectric barrier grating discharge (DBGD)
with a filterless laboratory-scale ventilation system and is used
to treat concentrated bacterial bioaerosol in a moving air stream
at air flow rates of 25 L/s. Results indicate that plasma treatment
times on the order of milliseconds corresponding to one
pass through the DBGD device can achieve 1.5-log reduction in
culturable E. coli immediately after contact with plasma and 5-log
reduction totally following in the minutes after the plasma treatment.
A numerical characterization study was performed to help
predict and understand the mechanism of bacteria inactivation in
the DBD plasma from a variety of plasma factors. |
| URI: | http://dx.doi.org/10.1109/TPS.2007.905209
http://hdl.handle.net/1860/2586 |
| Appears in Collections: | Faculty Research and Publications (MEM)
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