Simulation Study on Removal Effect of Nitrogen in Wastewater by Five Wetland Plants(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:

2014年17期

Page:

68-70

Research Field:

Publishing date:

Info

Title:

Simulation Study on Removal Effect of Nitrogen in Wastewater by Five Wetland Plants

Author(s):

SONG Hong¹; 2; CHEN Wei¹; HE Xing-yuan¹; LIU Zhou-li¹; HUANG Yan-qing¹; WANG Xue-yan¹; 2

1.State Key Laboratory of Forest and Soil Ecology,Shenyang Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang,Liaoning 110164；2.University of Chinese Academy of Sciences,Beijing 100049

Keywords:

eutrophication; water purification; wetland restoration; total nitrogen（TN）

PACS:

q945.79

DOI:

-

Abstract:

Taking Iris sanguinea, Iris pseudacorus,Polygonum orientale,Juncus effuses and Phragmites australis as test materials,by the method of water culture,the effect of removal of total nitrogen (TN) in the eutrophicated water by 5 plants were studied.The results showed that the removal rates of all treatments with wetland plants were significantly higher than the control without plants,the removal rates of TN by Iris sanguinea, Iris pseudacorus,Polygonum orientale,Juncus effuses and Phragmites australis were 67.2%,41.0%,45.1%,49.7% and 38.7% in the high concentration treatment,and 69.4%,58.7%,67.5%,68.4% and 68.4% in the low concentration treatment,respectively.The concentration of TN has been reduced from 15 mg/L to 0.11 mg/L and 1.10 mg/L,respectively,under the treatments with Iris sanguine and Polygonum orientale.The removal rates were significant differences in the high concentration water,and the same plant showed a higher removal efficiency in the low concentration treatment.

References:

［1］刁晓君,席北斗,何连生,等.基于生态分区的我国湖泊营养盐控制目标研究［J］.环境科学,2013,34(5):1687-1694.

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