Full Text:   <2358>

CLC number: X52

On-line Access: 

Received: 2006-10-19

Revision Accepted: 2007-03-05

Crosschecked: 0000-00-00

Cited: 10

Clicked: 4956

Citations:  Bibtex RefMan EndNote GB/T7714

-   Go to

Article info.
1. Reference List
Open peer comments

Journal of Zhejiang University SCIENCE B 2007 Vol.8 No.7 P.493~497

http://doi.org/10.1631/jzus.2007.B0493


Investigation and evaluation of ultrasound reactor for reduction of fungi from sewage


Author(s):  DEHGHANI Mohammad Hadi, MAHVI Amir Hossein, JAHED Gholam Reza, SHEIKHI Razieh

Affiliation(s):  Department of Environmental Health Engineering, School of Public Health, Medical Sciences/University of Tehran, P.O. Box 14155-6145, Tehran, I.R. Iran

Corresponding email(s):   mohadehghani@yahoo.com

Key Words:  Ultrasound reactor, Sewage, Fungi, Cavitation, Frequency


DEHGHANI Mohammad Hadi, MAHVI Amir Hossein, JAHED Gholam Reza, SHEIKHI Razieh. Investigation and evaluation of ultrasound reactor for reduction of fungi from sewage[J]. Journal of Zhejiang University Science B, 2007, 8(7): 493~497.

@article{title="Investigation and evaluation of ultrasound reactor for reduction of fungi from sewage",
author="DEHGHANI Mohammad Hadi, MAHVI Amir Hossein, JAHED Gholam Reza, SHEIKHI Razieh",
journal="Journal of Zhejiang University Science B",
volume="8",
number="7",
pages="493~497",
year="2007",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2007.B0493"
}

%0 Journal Article
%T Investigation and evaluation of ultrasound reactor for reduction of fungi from sewage
%A DEHGHANI Mohammad Hadi
%A MAHVI Amir Hossein
%A JAHED Gholam Reza
%A SHEIKHI Razieh
%J Journal of Zhejiang University SCIENCE B
%V 8
%N 7
%P 493~497
%@ 1673-1581
%D 2007
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2007.B0493

TY - JOUR
T1 - Investigation and evaluation of ultrasound reactor for reduction of fungi from sewage
A1 - DEHGHANI Mohammad Hadi
A1 - MAHVI Amir Hossein
A1 - JAHED Gholam Reza
A1 - SHEIKHI Razieh
J0 - Journal of Zhejiang University Science B
VL - 8
IS - 7
SP - 493
EP - 497
%@ 1673-1581
Y1 - 2007
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2007.B0493


Abstract: 
The objective of the investigation was to study the application of ultrasound reactor technology (USRT) as a disinfectant for reduction of fungi from sewage effluent. fungi are carbon heterotrophs that require preformed organic compounds as carbon sources. USRT is an attractive means to improve water quality because of the system simplicity and no production of toxic by-products. An ultrasound reactor produces strong cavitation in aqueous solution causing shock waves and reactive free radicals by the violent collapse of the cavitation bubble. These effects should contribute to the physical disruption of microbial structures and inactivation of organisms. There was significant reduction in fungal growth, with decreased fungal growth with increasing USRT. In this study, ultrasound irradiation at a frequency of 42 kHz was used to expose suspensions of fungi to evaluate the disinfection efficacy of the ultrasound reactor. Also, this study showed that in this system more than 99% reduction of sewage fungi was achieved after 60 min.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Anon, 2000. Water Quality Criteria, Report of the National Technical Advisory Committee to the Secretary of the Interior. Federal Water Pollution Control Administration, No. 25, Washington DC, USA.

[2] APHA (American Public Health Association), 1989. Standard Methods for the Examination of Water and Wastewater, 17th Ed. American Public Health Association, Washington DC, USA.

[3] Deinega, E.Y., 1986. Change in biophysical properties of microorganisms in the process of water disinfection. Water Chemistry and Technology, 8(2):132-134.

[4] Everett, W.C., 1978. Ultrasonic disinfection system. US Patent, No. 4,086,057.

[5] Gelate, P., Hodnett, M., Zeqiri, B., 2000. Supporting Infrastructure and Early Measurements. National Physical Laboratory Report, Teddington, Middlesex, UK, p.2-11.

[6] Gong, C., Hart, D.P., 1998. Ultrasound induced cavitation and sonochemical yields. The Acoustic Society of America, 104:1-16.

[7] Hua, I., Hoffmann, M.R., 1997. Optimization of ultrasonic irradiation as advanced oxidation technology. Environ. Sci. Technol., 31(8):2237-2243.

[8] Hua, I., Thompson, J.E., 2000. Inactivation of E. coli by sonication at discrete ultrasonic frequencies. Water Res., 34(15):3888-3893.

[9] Joyce, E., Mason, T.J., Phull, S.S., Lorimer, J.P., 2002. The development and evaluation of ultrasound for the treatment of bacterial suspension. Ultrasonics Sonochemistry, 10(6):315-318.

[10] Kalumuk, K.M., 2003. Remediation and Disinfection of Water Using Jet Generated Cavitation. 5th International Symposium on Cavitation (CAV2003), Osaka, Japan.

[11] Laborde, J.L., 1998. Acoustic cavitation field prediction at low and high frequency ultrasounds. Ultrasonics, 36(1-5):581-587.

[12] Lauterborn, W., Ohl, C.D., 1997. Cavitation bubble dynamics. Ultrasonics Sonochemistry, 4(2):65-75.

[13] Neppiras, E.A., 1980. Acoustic cavitation. Phys. Rep., 61(3):159-251.

[14] Petrier, C., 1992. Unexpected frequency effects on the rate of oxidative processes induced by ultrasound. J. Am. Chem. Soc., 114(8):3148-3150.

[15] Phull, S.S., Newman, A.P., Lorimer, J.P., Pollet, T.J., Mason, T.J., 1997. The development and evaluation of ultrasound in the biocidal treatment of water. Ultrasonics Sonochemistry, 4(2):157-164.

[16] Scherba, G., Weigel, R.M., Obrien, W.D., 1991. Quantitative assessment of the germicidal efficacy of ultrasonic energy. App. Environ. Microbiol., 57(7):2079-2084.

[17] Suslick, K.S., 1994. The Chemistry of Ultrasound. Chicago, Encyclopedia Britannica, p.138-155.

[18] Suslick, K.S., Crum, L.A., 1997. Sonochemistry and Sonoluminescence in Encyclopedia of Acoustics, Vol. 1. Wiley-Interscience, New York, p.271-282.

[19] Suslick, K.S., Price, G., 1999. Applications of ultrasound to materials chemistry. Annu. Rev. Matl. Sci., 29(1):295-326.

[20] Tsukamoto, I., Yim, B., Stavarache, C.E., Furuta, M., Hashiba, K., Maeda, Y., 2004. Inactivation of saccharomyces by ultrasonic irradiation. Ultrasonics Sonochem., 11(2):61-65.

Open peer comments: Debate/Discuss/Question/Opinion

<1>

Please provide your name, email address and a comment





Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou 310027, China
Tel: +86-571-87952783; E-mail: cjzhang@zju.edu.cn
Copyright © 2000 - Journal of Zhejiang University-SCIENCE