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Treatment performance of integrated vertical-flow constructed wetland plots for domestic wastewater
Chang, Jun-jun1,2; Wu, Su-qing1,2; Dai, Yan-ran1,2; Liang, Wei1; Wu, Zhen-bin1; Liang, W (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
2012-07-01
Source PublicationECOLOGICAL ENGINEERING
ISSN0925-8574
Volume44Pages:152-159
AbstractTwo pilot-scale integrated vertical-flow constructed wetlands (IVCWs) in parallel were employed to evaluate domestic wastewater treatment performance at a loading rate of 250 mm/d, and each was planted with two different plant species: Typha orientalis and Arundo donax var. versicolor (Plot 1), and Canna indica and Pontederia cordata (Plot 2). The results showed that different plant combinations offered no significant improvement in pollutant removal efficiencies (p > 0.05). The mean removal efficiencies associated with Plot 1 and Plot 2 were 59.9% vs. 62.8% for COD, 15.0% vs. 12.8% for TN, and 52.0% vs. 51.1% for TP, respectively. The mean mass removal rates (g m(-2) d(-1)) were 44.3 vs. 46.4 for COD, 1.27 vs. 1.08 for TN, and 0.393 vs. 0.386 for TP, respectively. It was noted that nitrification was the limited step for TN removal. Dissolved oxygen (DO) in the wetland beds was a dependence factor for the removals of organic matter and nitrogen, and it could be used to predict removal rates of chemical oxygen demand (COD) and total nitrogen (TN). Low temperatures had a negative impact on nutrient removals, especially for TN. (C) 2012 Elsevier B.V. All rights reserved.; Two pilot-scale integrated vertical-flow constructed wetlands (IVCWs) in parallel were employed to evaluate domestic wastewater treatment performance at a loading rate of 250 mm/d, and each was planted with two different plant species: Typha orientalis and Arundo donax var. versicolor (Plot 1), and Canna indica and Pontederia cordata (Plot 2). The results showed that different plant combinations offered no significant improvement in pollutant removal efficiencies (p > 0.05). The mean removal efficiencies associated with Plot 1 and Plot 2 were 59.9% vs. 62.8% for COD, 15.0% vs. 12.8% for TN, and 52.0% vs. 51.1% for TP, respectively. The mean mass removal rates (g m(-2) d(-1)) were 44.3 vs. 46.4 for COD, 1.27 vs. 1.08 for TN, and 0.393 vs. 0.386 for TP, respectively. It was noted that nitrification was the limited step for TN removal. Dissolved oxygen (DO) in the wetland beds was a dependence factor for the removals of organic matter and nitrogen, and it could be used to predict removal rates of chemical oxygen demand (COD) and total nitrogen (TN). Low temperatures had a negative impact on nutrient removals, especially for TN. (C) 2012 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordIntegrated Vertical-flow Constructed Wetlands (Ivcws) Treatment Performance Domestic Wastewater Do Temperature Plant Combination
Department[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; Wu, Su-qing; Dai, Yan-ran] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
DOI10.1016/j.ecoleng.2012.03.019
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China[51179184]; Major Science and Technology Program for Water Pollution Control and Treatment[2011ZX07303-001-04] ; National Natural Science Foundation of China[51179184]; Major Science and Technology Program for Water Pollution Control and Treatment[2011ZX07303-001-04] ; National Natural Science Foundation of China[51179184]; Major Science and Technology Program for Water Pollution Control and Treatment[2011ZX07303-001-04] ; National Natural Science Foundation of China[51179184]; Major Science and Technology Program for Water Pollution Control and Treatment[2011ZX07303-001-04]
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Engineering
WOS SubjectEcology ; Engineering, Environmental ; Environmental Sciences
WOS KeywordHORIZONTAL SUBSURFACE-FLOW ; NITROGEN REMOVAL ; SYSTEM ; DENITRIFICATION ; TEMPERATURE ; PURIFICATION ; VEGETATION ; EFFLUENT ; ORGANICS ; DESIGN
WOS IDWOS:000305443100020
Funding OrganizationNational Natural Science Foundation of China[51179184]; Major Science and Technology Program for Water Pollution Control and Treatment[2011ZX07303-001-04] ; National Natural Science Foundation of China[51179184]; Major Science and Technology Program for Water Pollution Control and Treatment[2011ZX07303-001-04] ; National Natural Science Foundation of China[51179184]; Major Science and Technology Program for Water Pollution Control and Treatment[2011ZX07303-001-04] ; National Natural Science Foundation of China[51179184]; Major Science and Technology Program for Water Pollution Control and Treatment[2011ZX07303-001-04]
Citation statistics
Cited Times:69[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/16975
Collection水环境工程研究中心
Corresponding AuthorLiang, W (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chang, Jun-jun,Wu, Su-qing,Dai, Yan-ran,et al. Treatment performance of integrated vertical-flow constructed wetland plots for domestic wastewater[J]. ECOLOGICAL ENGINEERING,2012,44:152-159.
APA Chang, Jun-jun,Wu, Su-qing,Dai, Yan-ran,Liang, Wei,Wu, Zhen-bin,&Liang, W .(2012).Treatment performance of integrated vertical-flow constructed wetland plots for domestic wastewater.ECOLOGICAL ENGINEERING,44,152-159.
MLA Chang, Jun-jun,et al."Treatment performance of integrated vertical-flow constructed wetland plots for domestic wastewater".ECOLOGICAL ENGINEERING 44(2012):152-159.
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