Algal Control by Low-Frequency, Low-Power Ultrasonic in Eutrophic Water bodies

被引：3
|
作者：
Jiang, Dengling [1 ]
Ni, Guowei [1 ]
Zhang, Yumin [2 ]
Su, Youpo [1 ]
机构：
[1] Hebei Polytech Univ, Coll Civil & Architectural Engn, Tangshan 063009, Hebei Province, Peoples R China
[2] Earthquake Engn Res Ctr Hebei Prov, Tangshan, Peoples R China
来源：
MATERIALS SCIENCE AND INFORMATION TECHNOLOGY, PTS 1-8 | 2012年 / 433-440卷
关键词：
ultrasonic; low frequency; low power; algal control; interval period; IRRADIATION;
D O I：
10.4028/www.scientific.net/AMR.433-440.811
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
Ultrasonic cavitations can control algal growth. Considering water ecosystem protection and characteristics of ultrasonic technology, low frequency and low power ultrasonic was especially suitable to control algal growth in water bodies. Effects of low-frequency and low-power ultrasonic irradiation on natural blend algal growth were investigated. The algae spices were collected from a fresh water body. It mainly consists of Cyanophyta, Bacillariophyta and Chlorophyta. The results showed that ultrasonic irradiation with frequency of 60KHz, power of 0.24W/cm(2) and irradiation time of 1 min, inhibited algal growth significantly. Inhibition of ultrasonic irradiation on algal growth enhanced with ultrasonic power increased. Inhibition did not increase again When ultrasonic power exceeds 0.24W/cm(2). The effect of algal control was sustainable by ultrasonic irradiation with interval period of 2-4 days.
引用
收藏
页码：811 / +
页数：3
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