Abstract
Radiofrequency (RF) power was investigated as a new, physical (nonchemical), thermal process to disinfect wastewater from dairy and animal facilities. Samples (n = 38) from 8 dairy, 2 calf, and 3 swine facilities in California were collected over a 3-yr period and characterized for their dielectric properties, chemical composition, and suitability for thermal processing using RF power. To establish efficacy for disinfection, selected samples were inoculated with high levels (106 to 109 cfu/mL) of bacterial pathogens such as Salmonella sp., Escherichia coli O157:H7, and Mycobacterium avium ssp. paratuberculosis and processed with an RF prototype system. The capabilities of RF power as a method for thermal disinfection of wastewater were demonstrated when bacteria pathogens were completely and rapidly (<1 min) inactivated when temperatures of 60 to 65°C were achieved. Furthermore, RF technology can be used for large-scale, batch or continuous and portable applications, allowing significant improvements in energy-use efficiencies compared with conventional thermal (surface heating) technologies. Therefore, RF power has potential as an alternative to disinfect dairy/animal farm wastewater before recycling.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 4120-4131 |
| Number of pages | 12 |
| Journal | Journal of Dairy Science |
| Volume | 88 |
| Issue number | 11 |
| State | Published - Nov 2005 |
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Keywords
- Disinfection
- Radiofrequency power
- Wastewater
ASJC Scopus subject areas
- Animal Science and Zoology
- veterinary(all)
- Food Science
Cite this
Disinfection of dairy and animal farm wastewater with radiofrequency power. / Lagunas-Solar, M. C.; Cullor, James S; Zeng, N. X.; Truong, T. D.; Essert, T. K.; Smith, W. L.; Piña, C.
In: Journal of Dairy Science, Vol. 88, No. 11, 11.2005, p. 4120-4131.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Disinfection of dairy and animal farm wastewater with radiofrequency power
AU - Lagunas-Solar, M. C.
AU - Cullor, James S
AU - Zeng, N. X.
AU - Truong, T. D.
AU - Essert, T. K.
AU - Smith, W. L.
AU - Piña, C.
PY - 2005/11
Y1 - 2005/11
N2 - Radiofrequency (RF) power was investigated as a new, physical (nonchemical), thermal process to disinfect wastewater from dairy and animal facilities. Samples (n = 38) from 8 dairy, 2 calf, and 3 swine facilities in California were collected over a 3-yr period and characterized for their dielectric properties, chemical composition, and suitability for thermal processing using RF power. To establish efficacy for disinfection, selected samples were inoculated with high levels (106 to 109 cfu/mL) of bacterial pathogens such as Salmonella sp., Escherichia coli O157:H7, and Mycobacterium avium ssp. paratuberculosis and processed with an RF prototype system. The capabilities of RF power as a method for thermal disinfection of wastewater were demonstrated when bacteria pathogens were completely and rapidly (<1 min) inactivated when temperatures of 60 to 65°C were achieved. Furthermore, RF technology can be used for large-scale, batch or continuous and portable applications, allowing significant improvements in energy-use efficiencies compared with conventional thermal (surface heating) technologies. Therefore, RF power has potential as an alternative to disinfect dairy/animal farm wastewater before recycling.
AB - Radiofrequency (RF) power was investigated as a new, physical (nonchemical), thermal process to disinfect wastewater from dairy and animal facilities. Samples (n = 38) from 8 dairy, 2 calf, and 3 swine facilities in California were collected over a 3-yr period and characterized for their dielectric properties, chemical composition, and suitability for thermal processing using RF power. To establish efficacy for disinfection, selected samples were inoculated with high levels (106 to 109 cfu/mL) of bacterial pathogens such as Salmonella sp., Escherichia coli O157:H7, and Mycobacterium avium ssp. paratuberculosis and processed with an RF prototype system. The capabilities of RF power as a method for thermal disinfection of wastewater were demonstrated when bacteria pathogens were completely and rapidly (<1 min) inactivated when temperatures of 60 to 65°C were achieved. Furthermore, RF technology can be used for large-scale, batch or continuous and portable applications, allowing significant improvements in energy-use efficiencies compared with conventional thermal (surface heating) technologies. Therefore, RF power has potential as an alternative to disinfect dairy/animal farm wastewater before recycling.
KW - Disinfection
KW - Radiofrequency power
KW - Wastewater
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UR - http://www.scopus.com/inward/citedby.url?scp=27644487973&partnerID=8YFLogxK
M3 - Article
C2 - 16230716
AN - SCOPUS:27644487973
VL - 88
SP - 4120
EP - 4131
JO - Journal of Dairy Science
JF - Journal of Dairy Science
SN - 0022-0302
IS - 11
ER -