Inferring groundwater dynamics in a coastal aquifer near wastewater infiltration ponds and shallow wetlands (Kwinana, Western Australia) using combined hydrochemical, isotopic and statistical approaches
文献类型：期刊论文
| 作者 | Bekele, Elise1; Zhang, Yinghua1,2 ; Donn, Michael1; McFarlane, Don1,3
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| 刊名 | JOURNAL OF HYDROLOGY
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| 出版日期 | 2019 |
| 卷号 | 568页码:1055-1070 |
| 关键词 | Managed aquifer recharge Australian wetlands Wastewater reuse Evapoconcentrated groundwater Groundwater hydrochemistry Deuterium excess |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2018.11.059 |
| 通讯作者 | Bekele, Elise(Elise.Bekele@csiro.au) |
| 英文摘要 | A proposal to increase wastewater infiltration at the Kwinana Wastewater Treatment Plant (KWTP) to an unconfined aquifer near a groundwater flow-through wetland (The Spectacles) in Western Australia, prompted a study of the groundwater geochemistry and water levels to identify the water types and to develop a conceptual model for groundwater flow and geochemical evolution. Within the catchment, the water table has dramatically declined (e.g up to -70 to - 90 mm/yr over three decades) due to the drying climate and increasing demand for groundwater. Annual rainfall has declined by 9 mm/decade on average or about 1.4% of the annual mean over the last three decades Wastewater infiltration began in 1975 and has increased to the current rate of 4.7 thousand cubic meters per day. Groundwater-surface water interactions were interpreted using multivariate statistical analysis of major ion and stable isotope (delta O-18, delta D) data. Rainwater infiltrating through the aquifer interacts with carbonate minerals while flowing westward to produce a Ca-HCO3 type of water (Group 1). Below the wetland, groundwater has an evaporative signature (Group 2) that has higher concentrations of TDS (> 1 g/L) and distinctively higher delta O-18 (> 2.5 per mil) than groundwater derived from wastewater infiltration (Group 3). The ratio of ions (K:Cl) was used to understand the mixing of water types and to quantify the proportions of wastewater at the site. Water samples collected in 2014 reveal a high proportion ( > 34%) of wastewater within the uppermost 30 m of aquifer and generally decreasing proportions with distance away from the source. Further investigation of The Spectacles water balance and hydrochemistry is needed to optimally manage and prevent degradation of the water quality. Proposed increases in wastewater recharge may continue to help offset the impact of the drying climate on lake levels. |
| WOS关键词 | ORGANIC MICROPOLLUTANTS ; STABLE-ISOTOPES ; RECLAIMED WATER ; QUALITY CHANGES ; CLIMATE-CHANGE ; FLOW ; CHEMISTRY ; RECHARGE ; IMPACTS ; RIVER |
| 资助项目 | Australian Water Recycling Centre of Excellence through the Australian Government's National Urban Water and Desalination Plan ; China Scholarship Council[201204910024] |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000455694400084 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | Australian Water Recycling Centre of Excellence through the Australian Government's National Urban Water and Desalination Plan ; China Scholarship Council |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/50507]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Bekele, Elise |
| 作者单位 | 1.CSIRO, Land & Water Flagship, CSIRO Private Bag 5, Wembley, WA 6913, Australia 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 3.Univ Western Australia, 35 Stirling Hwy, Crawley, WA 6009, Australia |
| 推荐引用方式 GB/T 7714 | Bekele, Elise,Zhang, Yinghua,Donn, Michael,et al. Inferring groundwater dynamics in a coastal aquifer near wastewater infiltration ponds and shallow wetlands (Kwinana, Western Australia) using combined hydrochemical, isotopic and statistical approaches[J]. JOURNAL OF HYDROLOGY,2019,568:1055-1070. |
| APA | Bekele, Elise,Zhang, Yinghua,Donn, Michael,&McFarlane, Don.(2019).Inferring groundwater dynamics in a coastal aquifer near wastewater infiltration ponds and shallow wetlands (Kwinana, Western Australia) using combined hydrochemical, isotopic and statistical approaches.JOURNAL OF HYDROLOGY,568,1055-1070. |
| MLA | Bekele, Elise,et al."Inferring groundwater dynamics in a coastal aquifer near wastewater infiltration ponds and shallow wetlands (Kwinana, Western Australia) using combined hydrochemical, isotopic and statistical approaches".JOURNAL OF HYDROLOGY 568(2019):1055-1070. |
入库方式： OAI收割
来源：地理科学与资源研究所
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