Short-term phytoremediation effect of sugarcane for contaminated farmland on heavy metal accumulation ability along the Huanjiang River in Guangxi, China

DOI

10.2991/icmmcce-17.2017.77How to use a DOI?

Keywords

heavy metal; contaminated soils; Sugarcane; phytoremediation; sequential extraction.

Abstract

The increasing heavy metal pollution in the sugarcane soil along the Huanjiang River was caused by leakage and spills from Pb and Zn tailing dams during a flood event.A 12-month experiment was conducted in the farmland with contaminated soil to evaluate the potential of sugarcane for remediation of soil contaminated with As, Pb, Cd, Cu, and Zn. Total and available heavy metal concentrations in the contaminated soils were analyzed before and after the phytoremediation application. The heavy metal concentration with phytoremediation was reduced compared with no sugarcane treatments. Elements showed low mobility, which was related to their total concentration in soil. Cu and Zn exhibited the greatest potential for release and thus for transporting to non-contaminated areas. The situation of Pb and Cd was intermediate. Heavy metal concentrations in the sugarcane juice were all below the maximum for contaminants in food, but that in bagasse met the maximum of standard. Sugarcane phytoremediation reduced the trace element availability and the risk of entry into the food chain. This technique is cheaper than other methods and proved to be a successful and reliable technique for remediation of large-scale trace element-contaminated soil with minimum maintenance.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiaofei Wang
AU  - Chaobing Deng
AU  - Guiping Xu
AU  - Zhen Yu
PY  - 2017/09
DA  - 2017/09
TI  - Short-term phytoremediation effect of sugarcane for contaminated farmland on heavy metal accumulation ability along the Huanjiang River in Guangxi, China
BT  - Proceedings of the 2017 5th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering (ICMMCCE 2017)
PB  - Atlantis Press
SP  - 395
EP  - 407
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmcce-17.2017.77
DO  - 10.2991/icmmcce-17.2017.77
ID  - Wang2017/09
ER  -