Sonolysis and Sonoacidification οf Ultrasonic Disintegration οf Excess Sludge

• Authors: E. Zielewicz
• Languages of publication: EN

Abstracts

EN

The expected effect of ultrasonic disintegration of excess sludge is particle dispergation and cell lysis i.e. the elimination of sludge microorganisms and the release of the contents of dead cells into the sludge liquid which results in an increase in chemical oxygen demand. Sonolysis also formed the basis for the intensification of volatile fatty acids production during the acid fermentation of excess sludge treated ultrasonically. In this study the investigations into the direct effects of excess sludge ultrasonic treatment revealed an increase in volatile fatty acid concentration directly (without fermentation process) after the ultrasonic treatment which is closely related to sonolysis.

Keywords

EN

43.35.-c

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 114
• Issue: 6A
• Pages: A-259-A-264

Dates

published

2008-12

Contributors

author

E. Zielewicz

• Institute of Water and Wastewater Engineering, Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland

References

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• 7. E. Zielewicz-Madej, MQ Acoustic J. 26, 299 (2005)
• 8. E. Zielewicz, Ultrasonic Disintegration of Excess Sludge to Produce Volatile Fatty Acids, Silesian University of Technology, Gliwice, Poland 2007 (in Polish)
• 9. K. Wójs, Cavitation in liquids of various rheological properties, TU, Wrocław 2004 (in Polish)

Identifiers

DOI

10.12693/APhysPolA.114.A-259