Journal of Food, Agriculture and Environment

Accumulation ability of wetland plants for copper in water body

Author(s):

Zhiwen Luo ^{1, 2}, XingzhongYuan ¹, Xiangying Chen ², Xiaoxia Cui ²

Recieved Date: 2013-06-18, Accepted Date: 2013-09-03

Abstract:

Copper is the most common heavy metal contaminant in the environment. The engineering and technology of construct wetland have been used to control the pollution of water due to its economy and efficiency and the hydrophytes were the most important constituents of construct wetland. In April, 2012, Cu²⁺ accumulation content in different parts of Acorus calamus, Phragmites australis were investigated based on hydroponic experiments of different Cu²⁺ concentration solutions in the study, and the concentrations of Cu²⁺ of the water body were 0, 10, 25, 60, 100, 200 and 500 mg/L, respectively. The results showed that there were significantly differences among three wetland plants and among of Cu²⁺ concentration for above-ground parts and under-ground of Acorus calamus, Phragmites australis. Cu²⁺ contents in aboveground and underground parts of wetland plants increased with the Cu²⁺ concentrations of hydroponic solution, and have significantly positive correlation between Cu²⁺ contents and concentrations of hydroponic solution. There was significantly difference in Cu²⁺ contents among the wetland plants under all Cu²⁺ concentrations of hydroponic solution. Acorus calamus formed the greatest accumulation ability because the Cu²⁺ concentration in aboveground parts and underground of Acorus calamus was higher than other wetland plants. Acorus calamus, Phragmites australis can been selected to application on phytoemediation of water polluted by heavy metal due to the excellent Cu²⁺ accumulation ability of them under the Cu²⁺ concentration especially the Acorus calamus.

Keywords:

Acorus calamus, Phragmites australis, Cu²⁺, accumulation

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Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 3&4
Category: Environment
Pages: 2145-2147

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