Effect of artificial aeration on the performance of vertical-flow constructed wetland treating heavily polluted river water
文献类型：期刊论文
| 作者 | Dong, Huiyu ; Qiang, Zhimin ; Li, Tinggang ; Jin, Hui ; Chen, Weidong |
| 刊名 | Environmental Sciences & Ecology
 |
| 出版日期 | 2012 |
| 卷号 | 24期号:4页码:596-601 |
| 关键词 | vertical-flow constructed wetland artificial aeration polluted river water hydraulic loading rate |
| ISSN号 | 1001-0742 |
| 中文摘要 | Three lab-scale vertical-flow constructed wetlands (VFCWs), including the non-aerated (NA), intermittently aerated (IA) and continuously aerated (CA) ones, were operated at different hydraulic loading rates (HLRs) to evaluate the effect of artificial aeration on the treatment efficiency of heavily polluted river water. Results indicated that artificial aeration increased the dissolved oxygen (DO) concentrations in IA and CA, which significantly favored the removal of organic matter and NH4+-N. The DO grads caused by intermittent aeration formed aerobic and anoxic regions in IA and thus promoted the removal of total nitrogen (TN). Although the removal efficiencies of CODCr, NH4+-N and TN in the three VFCWs all decreased with an increase in HLR, artificial aeration enhanced the reactor resistance to the fluctuation of pollutant loadings. The maximal removal efficiencies of CODCr, NH4+-N and total phosphorus (TP) (i.e., 81%, 87% and 37%, respectively) were observed in CA at 19 cm/day HLR, while the maximal TN removal (i.e., 57%) was achieved in 1A. Although the improvement of artificial aeration on TP removal was limited, this study has demonstrated the feasibility of applying artificial aeration to VFCWs treating polluted river water, particularly at a high HLR. |
| WOS记录号 | WOS:000303297400004 |
| 公开日期 | 2014-11-28 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/8130]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Dong, Huiyu,Qiang, Zhimin,Li, Tinggang,et al. Effect of artificial aeration on the performance of vertical-flow constructed wetland treating heavily polluted river water[J]. Environmental Sciences & Ecology,2012,24(4):596-601. |
| APA | Dong, Huiyu,Qiang, Zhimin,Li, Tinggang,Jin, Hui,&Chen, Weidong.(2012).Effect of artificial aeration on the performance of vertical-flow constructed wetland treating heavily polluted river water.Environmental Sciences & Ecology,24(4),596-601. |
| MLA | Dong, Huiyu,et al."Effect of artificial aeration on the performance of vertical-flow constructed wetland treating heavily polluted river water".Environmental Sciences & Ecology 24.4(2012):596-601. |
入库方式： OAI收割
来源：生态环境研究中心
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