再力花处理河涌和湖泊水样有机污染物及离子的特性

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Abstract

In order to determine the removal efficiency of COD,TP,TN,cations and anions by plant,and illustrate the transfer mechanism of nitrogen-containing pollutants,Thalia dealbata was used to treat the water samples collected from an urban river in Guangzhou and a lake at Jinan University.The results indicated that T.dealbata could improve the removal ratios of COD,TP and TN.After the urban river water samples were treated for 144 h,the concentrations of TN,COD_Cr and TP were decreased from 11.15mg·L^-1,45mg·L^-1 and 1.17mg·L^-1to 3.21mg·L^-1,15.8mg·L^-1 and 0.53mg·L^-1,respectively.After the lake water samples were treated for 144 h,they were reduced from 4.50mg·L^-1,36mg·L^-1 and 0.25mg·L^-1 to 2.31mg·L^-1,11.7mg·L^-1 and 0.03mg·L^-1,separately.Moreover,the indigenous microorganisms and T.dealbata could remove NH₄⁺ effectively,and induced nitrosification and nitrification.However,they did not change the levels of Cl^-,SO₄^2-,Na⁺,K⁺,Mg²⁺and Ca²⁺.

Key words： urban river pollution phytoremediation ion Thalia dealbata

Received: 25 April 2012

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	Articles by authors
	XIE Dan-ping
	LI Kai-ming
	JIN Zhong
	JIANG Dong
	ZHAO Hang-jian
	JIN Cheng-lu
	CAI Jia-rui

Cite this article:

XIE Dan-ping,LI Kai-ming,JIN Zhong, et al. Treatment of organic pollutants and ions in water of urban river and lake by Thalia dealbata[J]. , 2012, 31(2): 127-132.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2012/V31/I2/127

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