Abstract
Concentrations of heavy metals leach from soil and rock excavated at civil engineering construction sites occasionally exceed the environmental criteria value in Japan. The phytoremediation is one of the techniques for cleaning up contaminated environments. The Eleocharis acicularis is tolerant plant of a wide variety of heavy metals, and it absorbs and accumulates these metals and has been proven to be effective in mine effluent treatment. In this study, we conducted a purification experiment using an artificial channel to know the ability of the E. acicularis to absorb and accumulate heavy metals due to differences in temperature. The drainage containing arsenic flowing out of the embankment flowed into the artificial channel at different periods of average temperature. As a result of experiments, the arsenic content of the E. acicularis were confirmed increasing in 3.4 mg/kg in the summer and 2.3 mg/kg in the winter. These values are corresponding with 0.8% in the summer and in 0.3% in the winter for the arsenic gross weight of the displacement according to each season. Thus, the arsenic absorption ability of the E. acicularis was able to grasp by the artificial channel experiment.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IOP Conference Series: Earth and Environmental Science
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
