Changes in the quality of river water before, during and after a major flood event associated with a La Nina cycle and treatment for drinking purposes
文献类型：期刊论文
| 作者 | Murshed, Mohamad Fared ; Aslam, Zeeshan ; Lewis, Rosmala ; Chow, Christopher ; Wang, Dongsheng ; Drikas, Mary ; van Leeuwen, John |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2014 |
| 卷号 | 26期号:10页码:1985-1993 |
| 关键词 | Alum Coagulation Flood mEnCo prediction dose (EnCD) La Nina |
| ISSN号 | 1001-0742 |
| 中文摘要 | The treatment of organics present in the lower reaches of a major river system (the Murray-Darling Basin, Australia) before (March-July 2010), during (December 2010-May 2011) and after (April-December 2012) a major flood period was investigated. The flood period (over 6 months) occurred during an intense La Nina cycle, leading to rapid and high increases in river flows and organic loads in the river water. Dissolved organic carbon (DOC) increased (2-3 times) to high concentrations (up to 16 mg/L) and was found to correlate with river flow rates. The treatability of organics was studied using conventional jar tests with alum and an enhanced coagulation model (mEnCo (c)). Predicted mean alum dose rates (per mg DOC) were higher before (9.1 mg alum/mg DOC) and after (8.5 mg alum/mg DOC) than during the flood event (8.0 mg alum/mg Dog, indicating differences in the character of the organics in raw waters. To assess the character of natural organic matter present in raw and treated waters, high performance size exclusion chromatography with UV and fluorescence detectors were used. During the flood period, high molecular weight UV absorbing compounds (>2 kDa) were mostly detected in waters collected, but were not evident in waters collected before and afterwards. The relative abundances of humic-like and protein-like compounds during and following the flood period were also investigated and found to be of a higher molecular weight during the flood period. The treatability of the organics was found to vary over the three climate conditions investigated. (C) 2014 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| WOS记录号 | WOS:000343780700004 |
| 公开日期 | 2015-03-26 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9508]  |
| 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 | Murshed, Mohamad Fared,Aslam, Zeeshan,Lewis, Rosmala,et al. Changes in the quality of river water before, during and after a major flood event associated with a La Nina cycle and treatment for drinking purposes[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2014,26(10):1985-1993. |
| APA | Murshed, Mohamad Fared.,Aslam, Zeeshan.,Lewis, Rosmala.,Chow, Christopher.,Wang, Dongsheng.,...&van Leeuwen, John.(2014).Changes in the quality of river water before, during and after a major flood event associated with a La Nina cycle and treatment for drinking purposes.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,26(10),1985-1993. |
| MLA | Murshed, Mohamad Fared,et al."Changes in the quality of river water before, during and after a major flood event associated with a La Nina cycle and treatment for drinking purposes".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 26.10(2014):1985-1993. |
入库方式： OAI收割
来源：生态环境研究中心
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