Ultrasonic Spray Nozzle System with Piezoelectric Ceramics for Water Treatment Applications


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A new type of ultrasonic spray nozzle was fabricated employing PZT and Pb-free piezoelectric device. The spray nozzle was designed to disperse chemicals in a water treatment mixing tank. The piezoelectrics were packaged in an aluminum case with silicone resin for the aqueous solution proof packaging. Chemicals were dispersed with high efficiency, and the ultrasonic fine particle spraying was able to reduce the chemicals consumption. The removal efficiencies of heterotrophic bacteria and Escherichia coli by chemicals injected using designed ultrasonic spray nozzle were higher than the conventional methods.



Key Engineering Materials (Volumes 317-318)

Edited by:

T. Ohji, T. Sekino and K. Niihara




J. S. Koh et al., "Ultrasonic Spray Nozzle System with Piezoelectric Ceramics for Water Treatment Applications", Key Engineering Materials, Vols. 317-318, pp. 861-864, 2006

Online since:

August 2006




[1] S. C. Choi et al. Ann. Meeting Abst., Am. Ceram. Soc, Vol. 93, (1991), p.455.

[2] W. H. Glaze, J. W. Kang, and D. H. Chapin., Ozone Sci. & Eng., Vol. 9, (1987), p.335.

[3] W. H. Glaze and J. W. Kang, J. Am. Water Works Assoc., Vol. 80, (1998), p.57.

[4] T. J. Mason and J. P. Lorimer, Ultrasonics, Vol. 28, (1990) p.333.