Study on the application of integrated eco-engineering in purifying eutrophic river waters

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	Study on the application of integrated eco-engineering in purifying eutrophic river waters
	Fang, Tao 1; Bao, Shaopan 1,2; Sima, Xiaofeng 3; Jiang, Hong 3; Zhu, Wentao 1,2; Tang, Wei 1
刊名	ECOLOGICAL ENGINEERING
	2016-09-01
卷号	94 页码:320-328
关键词	Eutrophication Integrated ecological engineering Constructed wetlands In situ purification system
ISSN号	0925-8574
英文摘要	Eutrophication has become the primary water quality issue for most of the freshwater in the world. An integrated ecological engineering was applied to treat the eutrophic water of the Shuangqiao River (SQ River), one of the most heavily polluted rivers inflowing to the Chaohu Lake, China. A multi-pond constructed wetlands system was built up to treat the external loading of wastewater. Meanwhile, an in situ purification system consisted of sediment dredging, hydrophytes restoration and artificial floating islands was constructed to purify the internal loading and the river course water. By monitoring the river water quality and analyzing the samples of sediments and plants, the treatment effects and efficiencies of single and integrated ecological technique were studied. Our results indicated that the implement of ecological project notably enhanced the river's capacity of reducing total phosphorus (TP), total nitrogen (TN) and potassium permanganate index (COD), which had increased from 2.49, 33.69 and 40.32 tons per year to 3.75, 58.28 and 74.36 tons per year, respectively. As a result, the concentrations of TP, TN and COD in the river water were dropped by 10.5%, 11.8% and 8.2% respectively. The monitoring data also showed that the removal efficiency of the in situ purification system varied with the seasons, while that of the wetlands system remained at a high level throughout the year, indicating the feasibility of a combination of different techniques to reduce the impact of season on water purification. In summary, this research indicated that single ecological technique produced no satisfying results due to the limits of technique features and environmental conditions, while the integrated engineering techniques could overcome those restrictions and had the potential to remediate heavily polluted rivers. (C) 2016 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Technology
类目[WOS]	Ecology ; Engineering, Environmental ; Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology ; Engineering
关键词[WOS]	CONSTRUCTED WETLANDS ; WASTE-WATER ; POLLUTION CONTROL ; SHALLOW LAKES ; FRESH-WATER ; SEDIMENT ; PHOSPHORUS ; NITROGEN ; RESTORATION ; REMOVAL
收录类别	SCI
语种	英语
WOS记录号	WOS:000381636400036
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/28333]
专题	水生生物研究所_藻类生物学及应用研究中心_学位论文
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Fang, Tao,Bao, Shaopan,Sima, Xiaofeng,et al. Study on the application of integrated eco-engineering in purifying eutrophic river waters[J]. ECOLOGICAL ENGINEERING,2016,94:320-328.
APA	Fang, Tao,Bao, Shaopan,Sima, Xiaofeng,Jiang, Hong,Zhu, Wentao,&Tang, Wei.(2016).Study on the application of integrated eco-engineering in purifying eutrophic river waters.ECOLOGICAL ENGINEERING,94,320-328.
MLA	Fang, Tao,et al."Study on the application of integrated eco-engineering in purifying eutrophic river waters".ECOLOGICAL ENGINEERING 94(2016):320-328.