The Application of Low-Frequency and Low-Power Ultrasound Algae Removal Technology in Pengxi River in Three Gorges Area

Abstract:

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Three ultrasonic transmitters of single power of 50W, frequency of 20~50 kHz,60~100 kHz and 100~150 kHz were used to remove bloom algae of Pengxi River in Three Gorges Area. The results show that algae are removed in some certain degree by 5 min’s irradiation of low-frequency and low-power ultrasound, the process follows the first order reaction, and the rate constant is 0.0384 min-1. In this study, the optimal ultrasonic time is 5 min, the removal of algae density and Chlorophyll-a are about 15% and 7%, the optimal frequency are 20~50 kHz and 100~150 kHz respectively.

Info:

Periodical:

Advanced Materials Research (Volumes 295-297)

Edited by:

Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu

Pages:

1852-1855

DOI:

10.4028/www.scientific.net/AMR.295-297.1852

Citation:

Z. Zhang et al., "The Application of Low-Frequency and Low-Power Ultrasound Algae Removal Technology in Pengxi River in Three Gorges Area", Advanced Materials Research, Vols. 295-297, pp. 1852-1855, 2011

Online since:

July 2011

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Price:

$35.00

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