Nitrate removal from tail water by integrated vertical-flow constructed wetlands at a high hydraulic loading rate
文献类型：期刊论文
| 作者 | Chang, Jun-jun1,2; Wu, Su-qing1,3; Dai, Yanran1,4; Wu, Zhen-bin1; Liang, Wei1 |
| 刊名 | DESALINATION AND WATER TREATMENT
 |
| 出版日期 | 2013-09-01 |
| 卷号 | 51期号:31-33页码:6031-6037 |
| 关键词 | Integrated vertical-flow constructed wetlands (IVCWs) Tail water NO3--N removal Denitrification High loading rate |
| ISSN号 | 1944-3994 |
| 通讯作者 | Liang, W (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China. |
| 中文摘要 | 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. |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Engineering, Chemical ; Water Resources |
| 研究领域[WOS] | Engineering ; Water Resources |
| 关键词[WOS] | WASTE-WATER ; DRINKING-WATER ; NUTRIENT REMOVAL ; PILOT-SCALE ; DENITRIFICATION ; NITROGEN ; GROUNDWATER ; PERFORMANCE ; BIOREACTOR ; PHOSPHORUS |
| 收录类别 | SCI |
| 资助信息 | 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] |
| 语种 | 英语 |
| WOS记录号 | WOS:000325921700015 |
| 公开日期 | 2014-01-06 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/19590]  |
| 专题 | 水生生物研究所_水环境工程研究中心_期刊论文 |
| 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 |
| 推荐引用方式 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.(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. |
入库方式： OAI收割
来源：水生生物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。