Influence of ultrasonic field on microcystins produced by bloom-forming algae

被引：70

作者：

Ma, BZ ^{[1
]}

Chen, YF

Hao, HW

Wu, MS

Wang, B

Lv, HG

Zhang, GM

机构：

[1] Tsing Hua Univ, Dept Mech Engn, Beijing 100084, Peoples R China

[2] Tsing Hua Univ, Res Ctr Environm Engn & Management, Grad Sch Shenzhen, Shenzhen, Peoples R China

来源：

COLLOIDS AND SURFACES B-BIOINTERFACES | 2005年 / 41卷 / 2-3期

关键词：

microcystins; Microcystis; ultrasonic irradiation; degradation;

D O I：

10.1016/j.colsurfb.2004.12.010

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

Under the background of algae removal and growth inhibition by ultrasonic irradiation, the effects of ultrasonic irradiation on removal of Microcystis, the concentration variation of microcystins (MC) produced by Microcystis in Microcystis suspension, and sonochemical degradation of microcystins in water, were studied in the paper. The results showed that ultrasonic irradiation could efficiently inhibit the growth of Microcystis. and ultrasonic irradiation shorter than 5 min would not introduce the increase of microcystins dissolved in Microcystis suspension simultaneity. Also, microcystins dissolved in Microcystis suspension would not increase as ultrasonic power increasing. Further research showed that microcystins were effectively degraded in ultrasonic fields. After 20 min ultrasonic irradiation at 150 kHz and 30 W, the removal rate of microcystins reached 70%. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：197 / 201

页数：5

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