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Nitrate removal from tail water by integrated vertical-flow constructed wetlands at a high hydraulic loading rate
Chang, Jun-jun1,2; Wu, Su-qing1,3; Dai, Yanran1,4; Wu, Zhen-bin1; Liang, Wei1; Liang, W (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
2013-09-01
Source PublicationDESALINATION AND WATER TREATMENT
ISSN1944-3994
Volume51Issue:31-33Pages:6031-6037
AbstractNitrate removal rates of two pilot-scale integrated vertical-flow constructed wetlands (IVCWs) treating tail water, under a hydraulic loading rate (HLR) of 250 mm/d with a mean influent NO3--N concentration of 24.4 mg.L-1, were evaluated. Mean NO3--N removal efficiencies of 15.5 and 18.5% with mass removal rates of 1.01 g.m(-2).d(-1) and 1.16 g.m(-2).d(-1) for IVCW 1 (planted with Canna indica and Pontederia cordata) and 2 (planted with Typha orientalis and Arundo donax var. versicolor), respectively, were achieved. The removal rate constants as fitted by the first-order area-based model averaged 0.046 and 0.055 m.d(-1), respectively. Since NO3--N was the dominant nitrogen form in the effluent, denitrification was the limiting step in nitrogen removal despite of favorable pH and anaerobic conditions in the wetland beds. Low availability of carbon source, high HLR, and low temperature could be the probable influencing factors for the observed low NO3--N removal efficiencies. However, IVCW could be used to treat tail water for nitrate removal at a comparable high loading rate.; Nitrate removal rates of two pilot-scale integrated vertical-flow constructed wetlands (IVCWs) treating tail water, under a hydraulic loading rate (HLR) of 250 mm/d with a mean influent NO3--N concentration of 24.4 mg.L-1, were evaluated. Mean NO3--N removal efficiencies of 15.5 and 18.5% with mass removal rates of 1.01 g.m(-2).d(-1) and 1.16 g.m(-2).d(-1) for IVCW 1 (planted with Canna indica and Pontederia cordata) and 2 (planted with Typha orientalis and Arundo donax var. versicolor), respectively, were achieved. The removal rate constants as fitted by the first-order area-based model averaged 0.046 and 0.055 m.d(-1), respectively. Since NO3--N was the dominant nitrogen form in the effluent, denitrification was the limiting step in nitrogen removal despite of favorable pH and anaerobic conditions in the wetland beds. Low availability of carbon source, high HLR, and low temperature could be the probable influencing factors for the observed low NO3--N removal efficiencies. However, IVCW could be used to treat tail water for nitrate removal at a comparable high loading rate.
SubtypeArticle
KeywordIntegrated Vertical-flow Constructed Wetlands (Ivcws) Tail Water No3--n Removal Denitrification High Loading Rate
Department[Chang, Jun-jun ; Wu, Su-qing ; Dai, Yanran ; Wu, Zhen-bin ; Liang, Wei] 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, Yanran] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
DOI10.1080/19443994.2012.763049
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
Funding OrganizationMajor Science and Technology Program for Water Pollution Control and Treatment [2011ZX07303-001-04]; National Natural Science Foundation of China [51179184, 41272272]; 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]; National Natural Science Foundation of China [51179184, 41272272]; 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]; National Natural Science Foundation of China [51179184, 41272272]; 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]; National Natural Science Foundation of China [51179184, 41272272]; Key Project of the National Twelfth-Five Year Research Program of China [2012BAD25B05-02]
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Water Resources
WOS SubjectEngineering, Chemical ; Water Resources
WOS IDWOS:000325921700015
WOS KeywordWASTE-WATER ; DRINKING-WATER ; NUTRIENT REMOVAL ; PILOT-SCALE ; DENITRIFICATION ; NITROGEN ; GROUNDWATER ; PERFORMANCE ; BIOREACTOR ; PHOSPHORUS
Funding OrganizationMajor Science and Technology Program for Water Pollution Control and Treatment [2011ZX07303-001-04]; National Natural Science Foundation of China [51179184, 41272272]; 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]; National Natural Science Foundation of China [51179184, 41272272]; 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]; National Natural Science Foundation of China [51179184, 41272272]; 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]; National Natural Science Foundation of China [51179184, 41272272]; Key Project of the National Twelfth-Five Year Research Program of China [2012BAD25B05-02]
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/19590
Collection水环境工程研究中心_期刊论文
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.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
GB/T 7714
Chang, Jun-jun,Wu, Su-qing,Dai, Yanran,et al. Nitrate removal from tail water by integrated vertical-flow constructed wetlands at a high hydraulic loading rate[J]. DESALINATION AND WATER TREATMENT,2013,51(31-33):6031-6037.
APA Chang, Jun-jun,Wu, Su-qing,Dai, Yanran,Wu, Zhen-bin,Liang, Wei,&Liang, W .(2013).Nitrate removal from tail water by integrated vertical-flow constructed wetlands at a high hydraulic loading rate.DESALINATION AND WATER TREATMENT,51(31-33),6031-6037.
MLA Chang, Jun-jun,et al."Nitrate removal from tail water by integrated vertical-flow constructed wetlands at a high hydraulic loading rate".DESALINATION AND WATER TREATMENT 51.31-33(2013):6031-6037.
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