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

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)
Chapter
Chapter 4: Material Removal Processes and Machines
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, J. M. Han, M. K. Cai, G. D. Fan, J. Luo, X. Wan, C. Liu, "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
$32.00
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