Impact of pulsed ultrasound on bacteria reduction of natural waters
Article
Article Title | Impact of pulsed ultrasound on bacteria reduction of natural waters |
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ERA Journal ID | 34301 |
Article Category | Article |
Authors | Al-Juboori, Raed A. (Author), Aravinthan, Vasantha (Author) and Yusaf, Talal (Author) |
Journal Title | Ultrasonics Sonochemistry |
Journal Citation | 27, pp. 137-147 |
Number of Pages | 11 |
Year | 2015 |
Place of Publication | Netherlands |
ISSN | 1350-4177 |
1873-2828 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.ultsonch.2015.05.007 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S1350417715001364 |
Abstract | There is a limited work on the use of pulsed ultrasound for water disinfection particularly the case of natural water. Hence, pulsed ultrasound disinfection of natural water was thoroughly investigated in this study along with continuous ultrasound as a standard for comparison. Total coliform measurements were applied to evaluate treatment efficiency. Factorial design of 23 for the tested experimental factors such as power, treatment time and operational mode was applied. Two levels of power with 40% and 70% amplitudes, treatment time of 5 and 15 min and operational modes of continuous and pulsed with On to Off ratio (R) of 0.1:0.6 s were investigated. Results showed that increasing power and treatment time or both increases total coliform reduction, whereas switching from continuous to pulsed mode in combination with power and treatment time has negative effect on total coliform reduction. A regression |
Keywords | pulsed ultrasound; total coliform; microbial reduction; natural water; energy and cost |
ANZSRC Field of Research 2020 | 310605. Industrial microbiology (incl. biofeedstocks) |
340204. Inorganic green chemistry | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | School of Civil Engineering and Surveying |
School of Mechanical and Electrical Engineering | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2zz4/impact-of-pulsed-ultrasound-on-bacteria-reduction-of-natural-waters
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