Title: Application of combined emergent plants in floating bed for phytoremediation of landscape pond in South China

Authors: Peng Huang; Dandan Zhang; Shuang Bai; Songyan Qin

Addresses: School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300384, China; North China Municipal Engineering Design and Research Institute, No. 99 Qixiangtai Road, Tianjin 300074, China ' Qingdao LNT Chemical Co., Ltd., China, No. 39 East Huaihai Road, Qingdao 26500, China ' School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300384, China ' School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300384, China

Abstract: Plants support fauna richness and can be aesthetically pleasing. They also play an invaluable role in the assimilation and removal of nutrients. Canna indica L, Iris tectorums, Lythrum salicaria L., Cyperus alternifolius were found to be highly effective in remediating high nutrient levels in an aquatic environment. In this paper, the four plants were planted in floating beds in a park pond-Fuzhuang, Hefei city. The nearby pond-Lianfang as control was unplanted. The results suggested that combination of four species emergent plants performed well in nutrients removal; the removal efficiencies for suspended solids (SS), turbidity, total nitrogen (TN), total phosphorus (TP) were 82.5%, 87.5%, 75%, 82.9% respectively, compared with the control. At the end of the test, it successfully transformed from V grade water-body to III grade water-body. Different periods of flowering could maintain longer landscape effect. This paper demonstrated that combination of emergent plants could form pleasant scenery as well as restore eutrophic landscape pond.

Keywords: phytoremediation; landscape pond; emergent plants; landscape effect; water quality; China.

DOI: 10.1504/IJETM.2017.086423

International Journal of Environmental Technology and Management, 2017 Vol.20 No.1/2, pp.22 - 36

Accepted: 07 Mar 2017
Published online: 10 Sep 2017 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article