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题名: Nitrogen removal from nitrate-laden wastewater by integrated vertical-flow constructed wetland systems
作者: Chang, Jun-jun1, 2; Wu, Su-qing1, 3; Dai, Yan-ran1, 4; Liang, Wei1; Wu, Zhen-bin1
通讯作者: Liang, W (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
关键词: Nitrate-laden wastewater ; Integrated vertical-flow constructed wetland (IVCW) ; Nitrogen removal ; Seasonal variation ; Influencing factor ; Predictive models
刊名: ECOLOGICAL ENGINEERING
发表日期: 2013-09-01
DOI: 10.1016/j.ecoleng.2013.06.039
卷: 58, 页:192-201
收录类别: SCI
文章类型: Article
部门归属: [Chang, Jun-jun ; Wu, Su-qing ; Dai, Yan-ran ; Liang, Wei ; Wu, Zhen-bin] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China ; [Chang, Jun-jun] Yunnan Univ, Res Inst Engn & Technol, Kunming 650091, Peoples R China ; [Wu, Su-qing] Jiangxi Acad Environm Sci, Nanchang 330029, Peoples R China ; [Dai, Yan-ran] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Technology
资助者: National Natural Science Foundation of China [51179184, 41272272, 51008265]; Key Project of the National Twelfth-Five Year Research Program of China [2012BAD25B05-02]; Major Science and Technology Program for Water Pollution Control and Treatment [2011ZX07303-001-04]
类目[WOS]: Ecology ; Engineering, Environmental ; Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology ; Engineering
摘要: Nitrogen removals from nitrate-laden wastewater using two replicated, pilot-scale integrated vertical-flow constructed wetland systems (IVCWs) were investigated. Seasonal variation of the treatment performance and the critical environmental influencing factors was analyzed. Over a study period of 14 months, the system was able to achieve moderate nitrogen removals with mean removal efficiencies of 56.2% and 55.1%, mass removal rates of 762.1 mg m(-2) d(-1) and 819.7 mg m(-2) d(-1) for nitrate and TN, respectively, under a relatively low influent COD:N ratio of 1.67. Water temperature and DO concentration were the primary factors affecting nitrogen removal. The seasonal order of nitrogen removal efficiency was: summer > autumn > spring > winter. Predictive models with statistical confidence were developed for nitrogen removals employing on-line parameters as indicators. (C) 2013 Elsevier B.V. All rights reserved.
英文摘要: Nitrogen removals from nitrate-laden wastewater using two replicated, pilot-scale integrated vertical-flow constructed wetland systems (IVCWs) were investigated. Seasonal variation of the treatment performance and the critical environmental influencing factors was analyzed. Over a study period of 14 months, the system was able to achieve moderate nitrogen removals with mean removal efficiencies of 56.2% and 55.1%, mass removal rates of 762.1 mg m(-2) d(-1) and 819.7 mg m(-2) d(-1) for nitrate and TN, respectively, under a relatively low influent COD:N ratio of 1.67. Water temperature and DO concentration were the primary factors affecting nitrogen removal. The seasonal order of nitrogen removal efficiency was: summer > autumn > spring > winter. Predictive models with statistical confidence were developed for nitrogen removals employing on-line parameters as indicators. (C) 2013 Elsevier B.V. All rights reserved.
关键词[WOS]: SURFACE WETLANDS ; NUTRIENT REMOVAL ; FRESH-WATER ; DENITRIFICATION ; TEMPERATURE ; SCALE ; PERFORMANCE ; ECOSYSTEMS ; DESIGN ; EUTROPHICATION
语种: 英语
WOS记录号: WOS:000323610200026
ISSN号: 0925-8574
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19591
Appears in Collections:水环境工程研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Yunnan Univ, Res Inst Engn & Technol, Kunming 650091, Peoples R China
3.Jiangxi Acad Environm Sci, Nanchang 330029, Peoples R China
4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Chang, Jun-jun; Wu, Su-qing; Dai, Yan-ran; Liang, Wei; Wu, Zhen-bin.Nitrogen removal from nitrate-laden wastewater by integrated vertical-flow constructed wetland systems,ECOLOGICAL ENGINEERING,2013,58():192-201
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