Do NH3 and chemical oxygen demand induce continuous release of phosphorus from sediment in heavily polluted rivers?
文献类型：期刊论文
| 作者 | Zhang, Chao; Shan, Baoqing; Zhang, Wenqiang; Jin, Xin; Zhu, Xiaolei; Meng, Xin; Zhu, Yaoyao; Tang, Wenzhong |
| 刊名 | ECOLOGICAL ENGINEERING
 |
| 出版日期 | 2017-05-01 |
| 卷号 | 102期号:0页码:24-30 |
| 关键词 | Ammoniacal Nitrogen Chemical Oxygen Demand Phosphorus River Dissolved Oxygen Semi-arid Region |
| 英文摘要 | While phosphorus (P) is a vital element in freshwater systems, excessive P loads will induce eutrophication. Large inputs of various pollutants, including P, to rivers in semi-arid regions result in complex environmental problems. In this study, we investigate dissolved oxygen (DO), ammoniacal nitrogen (NH3), chemical oxygen demand (CODcr), soluble reactive P (SRP) in surface water and pore water, and sediment P in the Niuwei River, within the Hai River Basin. From our results we developed and tested a theory for P release in semi-arid regions driven by DO. The results show that NH3 and CODcr can cause variations in DO in surface water. The presence of pollutants at high concentrations caused seasonal hypoxia. Hypoxic river water induced adsorption and hydrolysis of NaOH-Pi and labile organic P (L-Po), which then resulted in increased SRP concentrations in pore water and surface water. Overall, our results illustrate that NH3 and CODcr may be important for P adsorption and desorption and for management of water quality problems in rivers in semi-arid regions. (C) 2017 Published by Elsevier B.V. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39492]  |
| 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 | Zhang, Chao,Shan, Baoqing,Zhang, Wenqiang,et al. Do NH3 and chemical oxygen demand induce continuous release of phosphorus from sediment in heavily polluted rivers?[J]. ECOLOGICAL ENGINEERING,2017,102(0):24-30. |
| APA | Zhang, Chao.,Shan, Baoqing.,Zhang, Wenqiang.,Jin, Xin.,Zhu, Xiaolei.,...&Tang, Wenzhong.(2017).Do NH3 and chemical oxygen demand induce continuous release of phosphorus from sediment in heavily polluted rivers?.ECOLOGICAL ENGINEERING,102(0),24-30. |
| MLA | Zhang, Chao,et al."Do NH3 and chemical oxygen demand induce continuous release of phosphorus from sediment in heavily polluted rivers?".ECOLOGICAL ENGINEERING 102.0(2017):24-30. |
入库方式： OAI收割
来源：生态环境研究中心
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