Application of constructed wetland for urban lake water purification : trial of Xing-qing Lake in Xi’an city, China

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Title: Application of constructed wetland for urban lake water purification : trial of Xing-qing Lake in Xi’an city, China
Authors: Cui, F.
Zhou, Q.
Wang, Y.
Zhao, Y.Q.
Permanent link: http://hdl.handle.net/10197/3107
Date: Jun-2011
Abstract: A comprehensive review of the current water pollution status in China has indicated that the urban lakes in Chinese cities have suffered from serious pollution and in high risk of eutrophication although the pollution sources have been largely controlled. The objective of this study lies in exploring a long term restoration of the aquatic ecosystem in Chinese city lakes using treatment wetland, an environmentally friendly and cost-effective technology. Trials from a subsurface horizontal flow constructed wetland (CW) have demonstrated that the treatment wetland can be used for such kind of purpose of lake water quality control. Average removal of 84.2% for COD, 53.8% for NH3-N, 47.9% for TN, 73.3% for TP and 86.6% for SS can be achieved. Relatively, low removal of nitrogen lies in the lack of nitrification and denitrification process. Accordingly, improved configuration of the treatment wetland system has been proposed and discussed. Finally, the importance of the integrated constructed wetland especially for the application of urban lake water treatment is highlighted.
Funding Details: Not applicable
Type of material: Journal Article
Publisher: Taylor & Francis
Copyright (published version): Taylor & Francis Group, LLC
Keywords: Constructed wetland;Urban lake;Wastewater treatment
Subject LCSH: Constructed wetlands--China--Xi’an Shi
Urban lakes--China--Xi’an Shi
Water--Purification--China--Xi’an Shi
Water--Pollution--China--Xi’an Shi
DOI: 10.1080/10934529.2011.571994
Language: en
Status of Item: Peer reviewed
Appears in Collections:Urban Institute Ireland Research Collection
Critical Infrastructure Group Research Collection
Civil Engineering Research Collection

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