Paper Title:

A Test of Three Macrophyte Species to Reduce Total Nitrogen and Total Phosphorus from Wastewater

Periodical Advanced Materials Research (Volumes 518 - 523)
Main Theme Advances in Environmental Science and Engineering
Edited by Reza Iranpour, Ji Zhao, Aijie Wang, Fenglin Yang and Xinyong Li
Pages 2288-2292
DOI 10.4028/www.scientific.net/AMR.518-523.2288
Citation Xiao Yun Fu et al., 2012, Advanced Materials Research, 518-523, 2288
Online since May, 2012
Authors Xiao Yun Fu, Xing Yuan He, Wei Chen, Zhou Li Liu
Keywords Aquatic Macrophytes, Removal, Total Nitrogen, Total Phosphorus
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Abstract

Three aquatic macrophytes (Acorus calamus, Lythrum salicaria and Sagittaria sagittifolia) were grown in monoculture to test the relative growth rate(RGR) and abilities of removing total nitrogen(TN) and total phosphorus (TP) by the manipulative indoor experiment. A nutrient treatment consisted of four levels of nitrogen (N) and phosphorus (P) [low (14 mg L-1 N and 3 mg L-1 P) and high (56 mg L-1 N and 12 mg L-1 P)] of nutrient solution. Result revealed that the RGR of the species was significantly different, however nutrients had no significant affect on the RGR. Also the abilities of different macrophyte species to remove nitrogen and phosphorous contrast sharply with one another. The results showed that TN and TP in wastewater were significantly higher from unvegetated microcosms compared to vegetated. A. calamus was shown to be best removal effect with the removal rates of 96.4% and 71.5% at low and high concentrations of TN. Furthermore A. calamus was generally effective removal capacity of TP at low nutrient level, but the performance of L. salicaria at reducing phosphorus at high nutrient level was relatively high.