Subscribe Now Subscribe Today
Research Article

Sonolysis of Indicator Microorganisms of Water Quality

Mohammad Hadi Dehghani
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

The aim of this study was to investigate the sonolysis of water microorganisms. Ultrasound waves as a disinfection technology at a frequency 42 kHz was used to inactivation of indicator microorganisms of water like the Escherichia coli (E. coli), Clostridium perfringense (Cp) and Heterotrophic Plate Counts (HPC). In ultrasound technology, the phenomena of cavitation which involves formation, growth and violent collapse of vapor bubbles in a liquid media is known to generate a high intensity pressure which affects the microorganisms viability. Therefore, ultrasound waves display a strong influence on the rate of microorganisms inactivation in aqueous suspension. Results showed a significant increase in sonolysis for indicators with increasing duration of sonication time in the 42 kHz. Sonolysis in 42 kHz is capable to some degree of inactivation indicator microorganisms. On the other hand, more than 99% of microorganisms was inactivated within 90 min.

Related Articles in ASCI
Similar Articles in this Journal
Search in Google Scholar
View Citation
Report Citation

  How to cite this article:

Mohammad Hadi Dehghani , 2005. Sonolysis of Indicator Microorganisms of Water Quality. Pakistan Journal of Biological Sciences, 8: 1380-1382.

DOI: 10.3923/pjbs.2005.1380.1382


1:  Phull, S., A.P. Newman, J.P. Lorimer, B. Pollet and T.J. Mason, 1997. The development and evaluation of ultrasound in the biological treatment of water. Ultrasonics Sonochem., 4: 157-164.
PubMed  |  

2:  Nash, L., 1993. Water Quality and Health. In: Water in Crisis, Gleick, P. (Ed.). Oxford University Press, New York, pp: 25-39.

3:  Olshansky, S.J., B. Carnes, R.G. Rogers and L. Smith, 1997. Infectious diseases new and ancient threats to world health. Populat. Bull., 52: 2-43.
Direct Link  |  

4:  United Nations, 1997. Commission on sustainable development. Comprehensive Assessment of the Freshwater Resources of the world. Report of the Secretary General. UN., New York, pp: 39.

5:  Rowley, J., 1990. Linking population to conservation special report on Pakistan. Earthwatch, 40: 3-5.
Direct Link  |  

6:  Ali, A., 1992. Water sanitation and health role of NGOs. Touch Aug., 11: 1-2.
Direct Link  |  

7:  Fewtrell, L. and J. Bartram, 2003. Water Quality Guidelines Standards and Health Assessment of Risk and Risk Management for Water Related Infectious Disease. In: World Health Organization, Fewtrell, L. (Ed.). IWA Publishing, London, pp: 289-315.

8:  Bartram, J., 2003. Heterotrophic Plate Counts and Drinking Water Safety the Signi Cance of HPCs for Water Quality and Human Health. In: WHO Emerging Issues in Water and Infectious Disease Series, Bartram, J. (Ed.). IWA Publishing, London.

9:  Ashbolt, N.J., W. Grabow and M. Snozzi, 2001. Indicators of microbial water quality. Applied Environ. Microbiol., 49: 1414-1424.

10:  Payment, P. and E. Franco, 1993. Clostridium perfringens and somatic coliphages as indicators of the efficiency of drinking water treatment for viruses and protozoan cysts. Applied Environ. Microbiol., 59: 2418-2424.
Direct Link  |  

11:  Mahvi, A.H., M.H. Dehghani and F. Vaezi, 2005. Ultrasonic technology effectiveness in total coliforms disinfection of water. J. Applied Sci., 5: 856-858.
CrossRef  |  Direct Link  |  

12:  Chang, J., S.F. Ossoff, D.C. Lobe, M.H. Dorfman, C.M. Dumais, R.G. Qualls and J.D. Johnson, 1985. UV inactivation of pathogenic and indicator Micro organisms. Applied Environ. Microbiol., 49: 361-1365.
Direct Link  |  

13:  Mason, T.J., 2003. Sonochemistry and sonoprocessing the link the trends and the future. Ultrason. Sonochem., 10: 175-179.
CrossRef  |  

14:  Hua, I. and M.R. Hoffmann, 1997. Optimization of ultrasonic irradiation as advanced oxidation technology. Environ. Sci. Technol., 31: 2237-2243.
CrossRef  |  

15:  Neppiras, E.A., 1980. Acoustic cavitation. Phys. Rep., 61: 159-251.

©  2021 Science Alert. All Rights Reserved