The accumulation of arsenic, uranium, and boron in Lemna gibba L. exposed to secondary effluents

被引：81

作者：

Sasmaz, Ahmet ^{[1
]}

Obek, Erdal ^{[2
]}

机构：

[1] Firat Univ, Dept Geol Engn, TR-23119 Elazig, Turkey

[2] Firat Univ, Dept Environm Engn, TR-23119 Elazig, Turkey

来源：

ECOLOGICAL ENGINEERING | 2009年 / 35卷 / 10期

关键词：

Bioaccumulation; Lemna gibba; Duckweed; Trace element; Secondary treatment; Municipal wastewater; WASTE-WATER; EICHHORNIA-CRASSIPES; AQUEOUS-SOLUTION; METAL REMOVAL; DUCKWEED; PLANTS; IRRIGATION; ELEMENTS; BIOFILTRATION; TOLERANCE;

D O I：

10.1016/j.ecoleng.2009.06.007

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Aquatic plants are used as a practical and effective method to remove toxic elements from secondary-treated municipal wastewater. In this study, Lemna gibba was investigated for its capacity to remove uranium, arsenic, and boron from secondary effluents. L gibba was collected from a natural lake in Elazig, Turkey, then acclimatized to the effluent in situ. The concentration of toxic elements in the plant material was monitored as a function of time for 7 days. L. gibba significantly accumulated the toxic elements, particularly in the first 2 days. Arsenic, uranium, and boron were accumulated in the highest concentrations (133%. 122%, and 40%, respectively). However, in the following days, accumulation levels showed both increases and decreases, most probably due to L gibba reaching saturation levels. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1564 / 1567

页数：4

共 54 条

[1] Performance analysis of a full-scale duckweed-covered sewage lagoon [J].